Sustainability

Sustainability, Vol. 2, Pages 742-756: Locally Grown Foods and Farmers Markets: Consumer Attitudes and Behaviors

Conner — Fri, 12 Mar 2010 00:00:00 CET

Farm viability poses a grave challenge to the sustainability of agriculture and food systems: the number of acres in production continues to decline as the majority of farms earn negative net income. Two related and often overlapping marketing strategies, (i) locally grown foods and (ii) distribution at farmers markets, can directly enhance food system sustainability by improving farm profitability and long-term viability, as well as contributing to an array of ancillary benefits. We present results of a representative Michigan telephone survey, which measured consumers’ perceptions and behaviors around local foods and farmers markets. We discuss the implications of our findings on greater farm profitability. We conclude with suggestions for future research to enhance the contributions of locally grown foods and farmers markets to overall food system sustainability.

Sustainability, Vol. 2, Pages 717-741: Construction of an Environmentally Sustainable Development on a Modified Coastal Sand Mined and Landfill Site—Part 2. Re-Establishing the Natural Ecosystems on the Reconstructed Beach Dunes

AnneMarie Clements — Tue, 09 Mar 2010 00:00:00 CET

Mimicking natural processes lead to progressive colonization and stabilization of the reconstructed beach dune ecosystem, as part of the ecologically sustainable development of Magenta Shores, on the central coast of New South Wales, Australia. The retained and enhanced incipient dune formed the first line of storm defence. Placement of fibrous Leptospermum windrows allowed wind blown sand to form crests and swales parallel to the beach. Burial of Spinifex seed head in the moist sand layer achieved primary colonization of the reconstructed dune and development of a soil fungal hyphae network prior to introduction of secondary colonizing species. Monitoring stakes were used as roosts by birds, promoting re-introduction of native plant species requiring germination by digestive tract stimulation. Bush regeneration reduced competition from weeds, allowing native vegetation cover to succeed. On-going weeding and monitoring are essential at Magenta Shores until bitou bush is controlled for the entire length of beach. The reconstructed dunes provide enhanced protection from sand movement and storm bite, for built assets, remnant significant vegetation and sensitive estuarine ecosystems.

Sustainability, Vol. 2, Pages 702-716: Renewable Energy Use in Smallholder Farming Systems: A Case Study in Tafresh Township of Iran

Hossein Shabanali Fami — Thu, 04 Mar 2010 00:00:00 CET

This study was conducted to investigate use of renewable energy and materials in smallholder farming system of the Tafresh township of Iran. The population of the study consisted of 2,400 small farmers working in the smallholder farming systems of the area, in which 133 people were selected as sample using Cochran formula and simple random sampling technique. In order to gather the information, a questionnaire was developed for the study and validated by the judgment of the experts in agricultural development and extension. The reliability of the main scales of the questionnaire was examined by Cronbach Alpha coefficients, which ranged from 0.7 to 0.93, indicating the tool of study is reliable. The findings revealed that the majority of the respondents use renewable energy and materials directly in its traditional forms without enabling technologies, and they lack the access to renewable technologies to improve the efficiency of energy use. They preferred fossil energy for many activities due to its lower cost and ease of access. The overall conclusion is that there are potentials and capacities for using renewable energies and materials in the farming systems of the Tafresh township. The government has to support and encourage the adoption of renewable technologies and abandon fossil fuels wherever possible.

Sustainability, Vol. 2, Pages 684-701: Estimating Arrival Numbers for Informal Recreation: A Geographical Approach and Case Study of British Woodlands

Andy Jones — Thu, 25 Feb 2010 00:00:00 CET

This paper describes a novel methodology for generating models of demand for informal outdoor recreation. We analyze visitor data from multiple forest sites across Great Britain. We introduce a wide range of variables typically omitted from most economic demand models of recreation. These include on-site characteristics, and off-site locational drivers of visitation including substitute and complement availability. A Poisson multilevel model is used to model visitor counts, and the methodology is applied to a dataset of more than 10,000 visits to open-access woodland sites. Results confirm it identifies a broader range of demand drivers than previously observed. The use of nationally available explanatory variables enhances the transferability and hence general applicability of the methodology.

Sustainability, Vol. 2, Pages 660-683: Managing Cuscuta gronovii (Swamp Dodder) in Cranberry Requires an Integrated Approach

Hilary A. Sandler — Wed, 24 Feb 2010 00:00:00 CET

Dodders (Cuscuta spp.) are parasitic plants that threaten the sustainability of many crops. Because this parasite is very adept and successful from biological and ecological perspectives, a single control strategy is unlikely to provide sufficient economic control. Dodder (C. gronovii) is a particularly serious pest in commercial cranberry (Vaccinium macrocarpon) production. Multiple viable strategies must be integrated and tailored into a weed management plan to provide acceptable control. The key to sustainable management of this serious pest will require a combination of chemical and cultural approaches, supported by understanding the complicated nature of dodder biology. Research from small fruit production systems like cranberry into the biology of dodder (e.g., germination patterns, host preference, use of plant growth regulators) may provide insights that could ultimately be useful for other crop system management plans. This paper will present the current knowledge base for integrated management of dodder in cranberry as well as highlight relevant research from other crops and potential topics for future research.

Sustainability, Vol. 2, Pages 645-659: The Rhetoric of Sustainability: Perversity, Futility, Jeopardy?

Meg Holden — Mon, 22 Feb 2010 00:00:00 CET

In 1991, development economist and American public intellectual Albert O. Hirschman wrote the Rhetoric of Reaction [1]. In this book, which was prescient of more contemporary popular books such as Naomi Klein’s The Shock Doctrine [2] and James C. Scott’s Seeing Like a State [3], Hirschman proposed a way to understand the kinds of arguments made by conservatives about proposals for change. His compelling trilogy of modes of arguments included arguments of perversity, futility, and jeopardy. I argue here that this schema can additionally be used as a way to understand the limits that are seen to exist to approaching sustainable development. I will demonstrate the pervasiveness of arguments that our best attempts to move toward sustainability in our cities today may present threats that are just as grave as those of not acting. This exercise serves two purposes. One is to urge those who would call themselves sustainability scholars to think critically and carefully about the lines of thought and action that may separate different sustainability motivations from the far reaches of interdisciplinary work in this field. The other is to suggest that, because of the persistence of certain kinds of arguments about the impossibility of sustainability, suggestive of deep and enduring instincts of doubt through human history, we should be skeptical of the legitimacy of these claims about the limitations of achieving sustainable development.

Sustainability, Vol. 2, Pages 624-644: Feasibility Analysis of Sustainability-Based Measures to Reduce VOC Emissions in Office Partition Manufacturing

Frank S. Luisser — Sun, 21 Feb 2010 00:00:00 CET

A feasibility analysis is reported of reduction opportunities for volatile organic compound (VOC) emissions in manufacturing office furniture partitions, aimed at contributing to efforts to improve the sustainability of the process. A pollution prevention methodology is utilized. The purpose is to provide practical options for VOC emissions reductions during the manufacturing of office furniture partitions, but the concepts can be generally applied to the wood furniture industry. Baseline VOC emissions for a typical plant are estimated using a mass balance approach. The feasibility analysis expands on a preliminary screening to identify viable pollution prevention options using realistic criteria and weightings, and is based on technical, environmental and economic considerations. The measures deemed feasible include the implementation of several best management practices, ceasing the painting of non-visible parts, switching to hot melt backwrapping glue, application of solvent recycling and modification of the mechanical clip attachment. Implementation, measurement and control plans are discussed for the measures considered feasible, which can enhance the sustainability of the manufacturing of office furniture partitions. Reducing VOC emissions using the measures identified can, in conjunction with other measures, improve the sustainability of the manufacturing process.

Sustainability, Vol. 2, Pages 604-623: Natural Resources Management: Life Cycle Assessment and Forest Certification and Sustainability Issues

Thomas J. Straka — Sun, 21 Feb 2010 00:00:00 CET

Forest sustainability and forest certification are important natural resource management and environmental issues. Forest certification addresses the social and environmental issues in the acquisition of raw materials (e.g., lumber to be used in the building process). Life cycle assessment is a common technique used in the evaluation of forest sustainability issues and forest certification programs. Life cycle assessment is a tool to evaluate multiple issue environmental and some social impacts attributed to a product or process (e.g., wood as a building material). Inputs (like raw material extraction) and outputs (like pollution) are measured over the entire life process, with a goal to minimize negative environmental impacts over the life cycle of a product or process. The relationship between forest certification schemes and life cycle assessment is examined and assessed.

Sustainability, Vol. 2, Pages 591-603: Is Humanity Doomed? Insights from Astrobiology

Seth D. Baum — Fri, 12 Feb 2010 00:00:00 CET

Astrobiology, the study of life in the universe, offers profound insights into human sustainability. However, astrobiology is commonly neglected in sustainability research. This paper develops three topics connecting astrobiology to sustainability: constraints on what zones in the universe are habitable, the absence of observations of extraterrestrial civilizations, and the physical fate of the universe. These topics have major implications for our thinking and action on sustainability. While we may not be doomed, we must take certain actions to sustain ourselves in this universe. The topics also suggest that our current sustainability efforts may be of literally galactic importance.

Sustainability, Vol. 2, Pages 576-590: How Does Car Parking Availability and Public Transport Accessibility Influence Work-Related Travel Behaviors?

Hannah M. Badland — Fri, 12 Feb 2010 00:00:00 CET

This study investigated the relationships between car parking, public transport, travel behaviors, and health outcomes for adults (n = 1,188) traveling to a worksite. Public transport was used for 12.1% of the work-related commute. Those who had higher levels of walking, no worksite car park access, lived proximal to a public transport stop, had limited automobile availability, traveled to the main business district, perceived public transport as accessible, or did not have company car access were more likely to use public transportation. Accordingly, proximal residential transit stops and restrictions for company car accessibility and parking at the worksite are needed.

Sustainability, Vol. 2, Pages 551-575: Assessing Sustainability Transition in the US Electrical Power System

Scott Jiusto — Fri, 12 Feb 2010 00:00:00 CET

This paper examines sustainability transition dynamics in the US electricity system, drawing on the socio-technical systems approach. We view system change as unfolding along several critical dimensions and geographical scales, including dynamics in the environment, science, civil society, discourse, and state regulatory institutions, as well as in capital and technology formations. A particular emphasis is given to the interaction of discourses, policy networks, and institutions. We trace four distinct regimes which have characterized the evolution of this discourse-network-institutional nexus over the last century. The research examines dynamics that present a challenge to the incumbent energy regime based on fossil fuels, nuclear and hydropower, and demonstrates how the actor-network supporting renewables and energy efficiency has grown stronger and more capable of moving toward a sustainability transition than at any time since the sustainable energy movement began a generation ago.

Sustainability, Vol. 2, Pages 533-550: Statistics for Categorical Surveys—A New Strategy for Multivariate Classification and Determining Variable Importance

Alexander Herr — Wed, 10 Feb 2010 00:00:00 CET

Surveys can be a rich source of information. However, the extraction of underlying variables from the analysis of mixed categoric and numeric survey data is fraught with complications when using grouping techniques such as clustering or ordination. Here I present a new strategy to deal with classification of households into clusters, and identification of cluster membership for new households. The strategy relies on probabilistic methods for identifying variables underlying the clusters. It incorporates existing methods that (i) help determine the optimal cluster number, (ii) directly identify variables underlying clusters, and (iii) identify the variables important for classifying new cases into existing clusters. The strategy uses the R statistical software, which is freely accessible to anyone.

Sustainability, Vol. 2, Pages 524-532: Solar-Powered Compaction Garbage Bins in Public Areas: A Preliminary Economic and Environmental Evaluation

Poppy Jane Coleman — Mon, 08 Feb 2010 00:00:00 CET

An excel-based model was developed to evaluate economic and environmental benefits of the solar-powered compaction garbage bins in public areas in Australia. Input data were collected from Brisbane and Wollongong City councils, and Sydney Olympic Park. The results demonstrate that solar-powered compaction garbage bins would provide environmental benefits in all scenarios. However, results of the economic analysis of the three studied areas varied significantly. The unique situation of Sydney Olympic Park made implementation in that facility particularly appealing. A lower monthly rental cost is needed for the implementation of this novel waste management practice.

Sustainability, Vol. 2, Pages 505-523: Sustainable Entrepreneurship in the Dutch Construction Industry

Rosalinde J.A. Klein Woolthuis — Thu, 04 Feb 2010 00:00:00 CET

This article discusses the strategies that sustainable entrepreneurs use to interact with their environment in the Dutch construction industry. The Dutch construction industry is under great pressure to move towards sustainability, and entrepreneurs are believed to be able to play a large role in this transition by introducing new products and new business practices. But how can entrepreneurs prosper in an environment that is not geared up towards such a change? And which strategies do they use to bend conditions in their favor? In this article we make use of the Market and System Failure Framework to analyze the pressures that entrepreneurs are confronted with when introducing sustainable innovations. We recognize that these pressures can be seen as bottlenecks, but that market and system failures can also create entrepreneurial opportunities. We interviewed 16 entrepreneurs in the Dutch construction industry to determine the influences they experienced from their environment and the strategies they use to deal with these. We conclude that we can distinguish between system building and following entrepreneurs, where the former aims to build a new system to challenge the old one, whereas the latter rather makes use of existing structures to build a business. We find that both strategies can be successful and that overall, the entrepreneurs confirm the belief that sustainability on people, planet and transparency aspects, can contribute very well to the long term profitability of the businesses the entrepreneurs are running. These in-depth insights into the influences from the context on the one hand, and the entrepreneurs’ strategic reactions on the other hand, contribute to our understanding of the interactions between entrepreneurs and the system context. This can help us to more effectively stimulate and support innovating entrepreneurs to contribute to the transition towards sustainability.

Sustainability, Vol. 2, Pages 494-504: Socio-Cultural Dimensions of Cluster vs. Single Home Photovoltaic Solar Energy Systems in Rural Nepal

Kimber Haddix McKay — Tue, 02 Feb 2010 00:00:00 CET

This paper analyzes the socio-cultural dimensions of obstacles facing solar photovoltaic projects in two villages in rural Nepal. The study was conducted in Humla District, Nepal, one of the most remote and impoverished regions of the country. There are no roads in the district, homes lack running water and villagers’ health suffers from high levels of indoor air pollution from open cooking/heating fires and the smoky torches traditionally burned for light. The introduction of solar energy is important to these villagers, as it removes one major source of indoor air pollution from homes and provides brighter light than the traditional torches. Solar energy is preferable in many villages in the region due to the lack of suitable streams or rivers for micro-hydroelectric projects. In the villages under study in this paper, in-home solar electricity is a novel and recent innovation, and was installed within the last three years in two different geo-spatial styles, depending upon the configuration of homes in the village. In some villages, houses are grouped together, while in others households are widely dispersed. In the former, solar photovoltaic systems were installed in a “cluster” fashion with multiple homes utilizing power from a central battery store under the control of the householder storing the battery bank. In villages with widely spaced households, a single home system was used so that each home had a separate solar photovoltaic array, wiring system and battery bank. It became clear that the cluster system was the sensible choice due to the geographic layout of certain villages, but this put people into management groups that did not always work well due to caste or other differences. This paper describes the two systems and their management and usage costs and benefits from the perspective of the villagers themselves.

Sustainability, Vol. 2, Pages 475-493: Reducing Energy Subsidies in China, India and Russia: Dilemmas for Decision Makers

Grant Dansie — Mon, 01 Feb 2010 00:00:00 CET

This article examines and compares efforts to reduce energy subsidies in China, India and Russia. Despite dissimilarities in forms of governance, these three states have followed surprisingly similar patterns in reducing energy subsidies, characterised by two steps forward, one step back. Non-democratic governments and energy importers might be expected to be more likely to halt subsidies. In fact, the degree of democracy and status as net energy exporters or importers does not seem to significantly affect these countries’ capacity to reduce subsidies, as far as can be judged from the data in this article. Politicians in all three fear that taking unpopular decisions may provoke social unrest.

Sustainability, Vol. 2, Pages 461-474: Energy Renovation of Buildings Utilizing the U-value Meter, a New Heat Loss Measuring Device

Lars Schiøtt Sørensen — Fri, 29 Jan 2010 00:00:00 CET

A new device with the ability to measure heat loss from building facades is proposed. Yet to be commercially developed, the U-value Meter can be used as stand-alone apparatus, or in combination with thermographic-equipment. The U-value meter complements thermographs, which only reproduce surface temperature and not the heat loss distribution. There is need for a device that measures the heat loss in a quantitative manner. Convective as well as radiative heat losses are captured and measured with a five-layer thermal system. Heat losses are measured in the SI-unit W/m2K. The aim is to achieve more cost-effective building renovation, and provide a means to check the fulfillment of Building Regulation requirements with respect to stated U-values (heat transmission coefficients). In this way it should be possible to greatly reduce energy consumption of buildings.

Sustainability, Vol. 2, Pages 443-460: Reduction of CO2 Emissions in Houses of Historic and Visual Importance

Anke van Hal — Wed, 27 Jan 2010 00:00:00 CET

According to the ‘Climate Programme’ the municipality of Amsterdam has the ambition to reduce the CO2 emissions within the city limits by 40% in the year 2025 compared to the year 1990. To realize this ambition substantial CO2 savings have to be realized at the 375,000 current houses in the city. A special challenge is formed by the houses of historic and visual importance, as the implementation of standard energy saving measures may conflict with the ambition to protect their cultural and historic values. Nyenrode Business University was asked to study the possibilities for a successful combination of ambitions in both fields. This article shows an overview of suggestions that focus on the combination of technical and process orientated innovations which can contribute to the acceleration of the reduction of CO2 emissions in houses of historic and visual importance. The article therefore addresses political and technical as well as financial and process related aspects in implementing energy saving measures in this category of buildings.

Sustainability, Vol. 2, Pages 428-442: Analysis of Barriers and the Potential for Exploration of Deconstruction Techniques in Portuguese Construction Sites

João Couto — Wed, 27 Jan 2010 00:00:00 CET

Deconstructing a building is the careful dismantling of that building so as to make possible the recovery of construction materials and components, promoting their reuse and recycling. However, deconstruction remains a rare procedure in Portugal. Using previous studies and data collected from present experiences, this paper presents a critical discussion on the importance of deconstruction for rehabilitation. Its aims are to discuss the main advantages, barriers and opportunities of this demolition technique, as well as the guidelines to the design process, aiming at assuring a successful management deconstruction process. Suggestions to impel this technique in Portugal are also described.

Sustainability, Vol. 2, Pages 400-427: Sustainable Non-Metallic Building Materials

Paul Joseph — Wed, 27 Jan 2010 00:00:00 CET

Buildings are the largest energy consumers and greenhouse gases emitters, both in the developed and developing countries. In continental Europe, the energy use in buildings alone is responsible for up to 50% of carbon dioxide emission. Urgent changes are, therefore, required relating to energy saving, emissions control, production and application of materials, use of renewable resources, and to recycling and reuse of building materials. In addition, the development of new eco-friendly building materials and practices is of prime importance owing to the growing environmental concerns. This review reflects the key tendencies in the sector of sustainable building materials of a non-metallic nature that have occurred over the past decade or so.

Sustainability, Vol. 2, Pages 383-399: Participation and Sustainable Management of Coastal Lagoon Ecosystems: The Case of the Fosu Lagoon in Ghana

Frederick A. Armah — Mon, 25 Jan 2010 00:00:00 CET

Participation as a tool has been applied as a social learning process and communication platform to create awareness among stakeholders in the context of resource utilisation. The application of participatory processes to aquatic ecosystem management is attracting a growing body of literature. However, the application of participation as a tool for sustainable management of coastal lagoon ecosystems is recent. This paper examines the context and the extent of participation of stakeholders in the management of the Fosu lagoon in Ghana. Six hundred individuals from twenty seven stakeholder groups were randomly selected for study. Both closed and open-ended questions were used in face-to-face interviews with stakeholders. The findings indicate that the stakeholder groups were not involved in decision-making regarding the conservation of the lagoon irrespective of their expertise in planning and/or their interest in lagoon resource utilisation. This situation has created apathy among some of the stakeholders who feel neglected in the decision-making process. There is scope for broadening the base of interest groups in decision-making processes regarding the lagoon and improving stakeholder participation in the management of the lagoon to ensure the sustainability of the management process.

Sustainability, Vol. 2, Pages 371-382: A Fair Accord: Cradle to Cradle as a Design Theory Measured against John Rawls’ Theory of Justice and Immanuel Kant’s Categorical Imperative

Jacob Voorthuis — Mon, 25 Jan 2010 00:00:00 CET

This essay explores a specific aspect of the role of attitude in design. The design of the built environment requires us constantly to make aesthetic and ethical judgments; every design decision has to be satisfactorily justified. Surprisingly perhaps, this requires a clear concept of justice against which a design can be grounded. Aesthetic concerns about quality spill into ethical concerns about the rightness of a decision and vice versa. This essay discusses a simple but crucial question: if a designer is aware of Cradle to Cradle as a theory of design but fails to act according to its principles, is it then possible to justify the resultant design? In other words, is Cradle to Cradle as a design theory that most rare of transcendental notions: a Categorical Imperative? Why might it be useful to describe it as such? Does the fact that we do not yet know how to redesign most products and processes according to its principles disqualify the theory? Does a dismissal of the Cradle to Cradle theory inevitably lead to an unfair society? These are serious questions, with interesting answers and far reaching implications for the way we think about design. First we shall explain what Cradle to Cradle means and how it distinguishes itself from other theories of sustainability. Then we shall put that explanation in the context of two ethical theories, first of all John Rawls’ Theory of Justice and second Immanuel Kant’s concept of the Categorical Imperative. After that we shall note a few problems concerning Cradle to Cradle design theory and put those into perspective. This will lead to an important attitudinal conclusion, namely that Cradle to Cradle can legitimately be described as one of those extremely rare cases which deserves universal applicability. We will offer a two-pronged strategy as to how to proceed.

Sustainability, Vol. 2, Pages 354-370: Toward Environmentally Sustainable Construction Processes: The U.S. and Canada’s Perspective on Energy Consumption and GHG/CAP Emissions

Changbum Ahn — Thu, 21 Jan 2010 00:00:00 CET

In the building and construction sector, most efforts related to sustainable development have concentrated on the environmental performance of the operation of buildings and infrastructure. However, several studies have called for the need to mitigate the considerable environmental impacts, especially air pollutant emissions and energy consumption, generated by construction processes. To provide a point of reference for initiating the development of environmentally sustainable construction processes, this article identifies energy consumption and air emissions resulting from construction activities and examines previous approaches utilized to assess such environmental impact. This research also identifies the opportunities and challenges to mitigate such environmental impact from construction processes, based on the investigation of current technology policies, regulations, incentives, and guidelines.

Sustainability, Vol. 2, Pages 341-353: Sustainable Sanitation—A Cost-Effective Tool to Improve Plant Yields and the Environment

Helvi Heinonen-Tanski — Wed, 20 Jan 2010 00:00:00 CET

Human urine and faeces are products formed every day in every human society. The volume and fertilisation value of urine is higher than that of faeces. This paper reviews data that urine has been used successfully as a fertiliser for cereals and some vegetables. According to the literature, urine fertilised plants may have produced higher, similar or slightly lower yields than mineral fertilized plants but they invariably resulted in higher yields than non-fertilised plants. There have been no microbiological risks associated with any products. The taste and chemical quality of the products are similar to plants treated with mineral fertilisers. Separating toilets, where urine and faeces are separated already in the toilet, could be beneficial not only in poor but also in the industrialized countries. A separating toilet could be installed also in old buildings and it could allow individuals to live in coastal areas, mountainous or other sensitive environments. In poor areas, urine fertilisation could increase food production also in home plots and reduce hunger. It could also combat water contamination and help to reduce diseases caused by enteric micro-organisms. If urine were to be viewed as a resource rather than a waste product, more families could be encouraged to install low-cost toilets which would especially improve the wellbeing of women.

Sustainability, Vol. 2, Pages 321-340: Developing a Sustainability Assessment Model: The Sustainable Infrastructure, Land-Use, Environment and Transport Model

Tan Yigitcanlar — Mon, 18 Jan 2010 00:00:00 CET

Measuring the comparative sustainability levels of cities, regions, institutions and projects is an essential procedure in creating sustainable urban futures. This paper introduces a new urban sustainability assessment model: “The Sustainable Infrastructure, Land-use, Environment and Transport Model (SILENT)”. The SILENT Model is an advanced geographic information system and indicator-based comparative urban sustainability indexing model. The model aims to assist planners and policy makers in their daily tasks in sustainable urban planning and development by providing an integrated sustainability assessment framework. The paper gives an overview of the conceptual framework and components of the model and discusses the theoretical constructs, methodological procedures, and future development of this promising urban sustainability assessment model.

Sustainability, Vol. 2, Pages 294-320: Black Carbon’s Properties and Role in the Environment: A Comprehensive Review

Gyami Shrestha — Fri, 15 Jan 2010 00:00:00 CET

Produced from incomplete combustion of biomass and fossil fuel in the absence of oxygen, black carbon (BC) is the collective term for a range of carbonaceous substances encompassing partly charred plant residues to highly graphitized soot. Depending on its form, condition of origin and storage (from the atmosphere to the geosphere), and surrounding environmental conditions, BC can influence the environment at local, regional and global scales in different ways. In this paper, we review and synthesize recent findings and discussions on the nature of these different forms of BC and their impacts, particularly in relation to pollution and climate change. We start by describing the different types of BCs and their mechanisms of formation. To elucidate their pollutant sorption properties, we present some models involving polycyclic aromatic hydrocarbons and organic carbon. Subsequently, we discuss the stability of BC in the environment, summarizing the results of studies that showed a lack of chemical degradation of BC in soil and those that exposed BC to severe oxidative reactions to degrade it. After a brief overview of BC extraction and measurement methods and BC use for source attribution studies, we reflect upon its significance in the environment, first by going over a theory that it could represent parts of what is called the ‘missing sink’ of carbon in global carbon cycle models. Elaborating upon the relationship of BC with polycyclic hydrocarbons, we show its significance for the sorption and transport of pollutants. A description of pulmonary-respiratory health effects of soot BC inhalation is followed by a discussion on its impact on climate and climate change. We explain how soot BC acts as a global warming agent through light (and heat) absorption and how it reduces the snow’s albedo and promotes its uncharacteristic thawing. On a more positive note, we conclude this review by illustrating recent observations and simulations of how pyrolytic processes can stabilize plant carbon stocks in the form of biochar BC that can sequester carbon and can help mitigate climate change, in addition to improving soil fertility.

Sustainability, Vol. 2, Pages 280-293: Is Globalisation Sustainable?

Pim Martens — Thu, 14 Jan 2010 00:00:00 CET

It is clear that globalisation is something more than a purely economic phenomenon manifesting itself on a global scale. Among the visible manifestations of globalisation are the greater international movement of goods and services, financial capital, information and people. In addition, there are technological developments, more international cultural exchanges, facilitated by the freer trade of more differentiated products as well as by tourism and immigration, changes in the political landscape and ecological consequences. In this paper, we link the Maastricht Globalisation Index with Sustainability Indices to analyse if more globalised countries are doing better in terms of sustainable development and its dimensions. The results seem to suggest that the process of globalisation may render world development more sustainable.

Sustainability, Vol. 2, Pages 266-279: Rainwater Storage Gutters for Houses

Mary Hardie — Wed, 13 Jan 2010 00:00:00 CET

A history of the implementation of a system of water storage roof gutters illustrates the difficulties which may be encountered in delivering more sustainable construction systems. Utilizing some rainwater at the site where it falls has considerable conservation benefit but it requires builders, roofers and plumbers to vary some of their standard practices. The observed change delivery process involves incorporation of trade knowledge, attention to detail, flexibility and the willingness of all parties including local building control authorities to try new options. Lessons learned have implications for the introduction of many kinds of environmentally driven improvements to domestic construction.

Sustainability, Vol. 2, Pages 252-265: A Systems Dynamics Approach to Explore Traffic Congestion and Air Pollution Link in the City of Accra, Ghana

Frederick A. Armah — Wed, 13 Jan 2010 00:00:00 CET

Economic development and urbanization poses myriad challenges to transportation systems in relation to negative externalities such as traffic congestion and environmental health risks. Accra, the capital of Ghana, faces mounting urban planning problems, for example traffic congestion, air pollution, traffic safety, and land use planning, among others. The paper aims to provide a system dynamics perspective of the problems. Most of the drivers and cause-effect relationships of traffic congestion and its attendant air pollution are investigated and analyzed using causal loop diagrams. The paper further suggests mechanisms by which the negative externalities associated with road transport in the city of Accra can be addressed.

Sustainability, Vol. 2, Pages 232-251: Barriers and Opportunities for Sustainable Food Systems in Northeastern Kansas

Hikaru Hanawa Peterson — Tue, 12 Jan 2010 00:00:00 CET

Survey responses of producers and institutional buyers in northeastern Kansas (United States) were analyzed to understand barriers and opportunities for sustainable food systems in the region where their emergence has been limited. Producers and buyers identified barriers previously noted regarding mismatches of available quantities and prices. Producers’ enthusiasm to supply locally exceeded buyers’ interest to source locally. Transportation was identified as one of the major concerns by producers, and their responses to choice tasks revealed producers’ preferences to sell locally while pricing their products to secure sales revenue and to cover their logistics expenses at least partially.

Sustainability, Vol. 2, Pages 215-231: Community Vitality: The Role of Community-Level Resilience Adaptation and Innovation in Sustainable Development

Ann Dale — Mon, 11 Jan 2010 00:00:00 CET

Community level action towards sustainable development has emerged as a key scale of intervention in the effort to address our many serious environmental issues. This is hindered by the large-scale destruction of both urban neighbourhoods and rural villages in the second half of the twentieth century. Communities, whether they are small or large, hubs of experimentation or loci of traditional techniques and methods, can be said to have a level of community vitality that acts as a site of resilience, adaptation and innovation in the face of environmental challenges. This paper outlines how community vitality acts as a cornerstone of sustainable development and suggests some courses for future research. A meta-case analysis of thirty-five Canadian communities reveals the characteristics of community vitality emerging from sustainable development experiments and its relationship to resilience, applied specifically to community development.

Sustainability, Vol. 2, Pages 204-214: On the Feasibility of a Timely Transition to a More Sustainable Energy Future

Micha Tomkiewicz — Mon, 11 Jan 2010 00:00:00 CET

The paper uses the framework of the IPAT equation, as applied to CO2 emission, to decompose the various driving forces in the global energy use. Data from recent history are superimposed on projections of SRES IPCC scenarios to determine if enough sustainable capacity can be built to prevent irreversible ecological deterioration. The conclusion from the analysis is that, in agreement with the IPCC 4th report, until about 2030 there are no large differences between a sustainable scenario and the one that resembles “business as usual”. The sharp divergence that follows stems from different estimates in population growth and in the percentage of use of fossil fuels in the total energy mix. Decomposition of alternative energy options indicate that the rate of increase of alternatives such as hydroelectric and nuclear start with a relatively high base but a growth rate too short for major contribution to a timely replacement of fossil fuels while wind and solar starts from a much lower base but rate of growth, if maintained, that can satisfy a timely replacement.

Sustainability, Vol. 2, Pages 189-203: Local Selling Decisions and the Technical Efficiency of Organic Farms

Luanne Lohr — Mon, 11 Jan 2010 00:00:00 CET

The primary purpose of this paper is to examine the factors that influence earned income of organic farmers explicitly incorporating farmer decisions to engage in local selling. The stochastic frontier model identifies role model producers who are the most technically efficient in achieving the maximum output that is feasible with a given set of inputs along with farm and demographic factors that enhance efficiency. Organic earnings equations that control for producer and farm characteristics reveal that organic farmers who are involved in local sales achieve lower earnings. Producer involvement in local sales has little impact on observed technical efficiency on organic farms.

Sustainability, Vol. 2, Pages 163-188: Overcoming the Barriers to Organic Adoption in the United States: A Look at Pragmatic Conventional Producers in Texas

Douglas H. Constance — Fri, 08 Jan 2010 00:00:00 CET

Organics is the one of the fastest growing segments in food sales. Though the amount of certified organic land is increasing, the supply of organic foods lags behind demand in the United States. The reasons for this gap include a lack of government support for organics, and the peculiarities of organics as an innovation. In an attempt to close this gap, and increase the environmental sustainability of U.S. agriculture, this paper has two objectives. The first is to document the structural and institutional constraints to organic adoption. This is accomplished through a review of organic programs and policies in the U.S., in particular the National Organic Program. The second objective is to investigate the predictors of interest and the perceived barriers to organic adoption among pragmatic conventional producers in Texas, compared to organic and conventional producers. This is accomplished through a survey of a representative sample of producers in Texas. The results indicate that more than forty percent of producers who currently have conventional operations have at least some interest in organic production (pragmatic conventional producers). There are significant differences among the three groups in their structural and attitudinal characteristics related to organic adoption. For the pragmatic conventional producers, an increase in revenue would be a major facilitator of organic adoption. Their high levels of uncertainty regarding organic production and marketing, and especially organic certification constrain organic adoption. The results also reveal that the institutional setting in the U.S. hindered adoption. The paper concludes that increased institutional support would facilitate organic adoption.

Sustainability, Vol. 2, Pages 145-162: Comparative Studies on Vehicle Related Policies for Air Pollution Reduction in Ten Asian Countries

Keiko Hirota — Thu, 07 Jan 2010 00:00:00 CET

Asian countries are facing major air pollution problems due to rapid economic growth, urbanization and motorization. Mortality and respiratory diseases caused by air pollution are believed to be endemic in major cities of these countries. Regulations and standards are the first requirement for reducing emissions from both fixed and mobile sources. This paper emphasizes monitoring problems such as vehicle registration systems, inspection and maintenance (I/M) systems and fuel quality monitoring systems for vehicles in use. Monitoring problems in developing countries share similar characteristics such as a weakness in government initiatives and inadequate operation of government agencies, which results from a lack of human resources and availability of adequate facilities. Finally, this paper proposes a method to assure air quality improvements under the different shares of emission regulations in these Asian countries and introduces an example of an evaluation method based on a policy survey to improve air quality.

Sustainability, Vol. 2, Pages 127-144: Eco-nomics: Are the Planet-Unfriendly Features of Capitalism Barriers to Sustainability?

Merrill Singer — Wed, 06 Jan 2010 00:00:00 CET

This paper argues that there are essential features of capitalist modes of production, consumption, and waste dispersal in interaction with the environment and its built-in systemic features that contradict long-term sustainable development. These features include: (a) contradictions in the origin and meaning of sustainability; (b) the central role of the productivity ethic in capitalism and its reproduction in emergent green capitalism; (c) the commodification of nature and the continued promotion of expanding consumption; (d) globalism and the contradictions of continued Western-style development; and (e) the emergence of anthropogenic ecocrises and crises interaction. In light of these barriers to capitalist sustainability, an alternative social narrative is needed, one that embraces values, understandings, and relationships that promote ecological stability and justice.

Sustainability, Vol. 2, Pages 117-126: Eco-Efficiency Assessments as a Tool for Revealing the Environmental Improvement Potential of New Regulations

Ottar Michelsen — Tue, 05 Jan 2010 00:00:00 CET

Public regulations can result in improved environmental performance of products. In this paper eco-efficiency is used to assess the most likely outcome of potential new regulations. The paper presents a case study of furniture production in Norway where different scenarios for improving the environmental performance of the products are presented. Four regulatory options for imposing environmental improvements are assessed; (1) an introduction of a tax on emissions, (2) an increase of the tax on landfills, (3) an introduction of a tax on raw material consumption, and (4) introduction of take-back legislation.

Sustainability, Vol. 2, Pages 92-116: On Prerequisites for the Application of Sustainable Development Indicators in Urban Water Management

Ulrika Palme — Tue, 05 Jan 2010 00:00:00 CET

Semi-structured interviews with 47 key actors were conducted in Swedish water utilities on why Sustainable Development Indicators (SDIs) are or are not used. Important influencing aspects identified included organizational inertia, social capital, the national water sector and authorities. Divergent views of SD and indicators appear to hinder SDI initiatives. Possible explanations are that: (a) not all actors look at decision-making as the kind of rational process the focus on indicators implies, and (b), Swedish urban water systems are widely regarded as sustainable. The water sector itself and regulation are identified as the strongest potential drivers for increased use of SDIs.

Sustainability, Vol. 2, Pages 73-91: Socioeconomic Obstacles to Establishing a Participatory Plant Breeding Program for Organic Growers in the United States

Ruth Mendum — Tue, 29 Dec 2009 00:00:00 CET

Proponents of participatory plant breeding (PPB) contend that it is more conducive to promoting agricultural biodiversity than conventional plant breeding. The argument is that conventional plant breeding tends to produce crops for homogenous environments, while PPB tends to be directed at meeting the diverse environmental conditions of the farmers participating in a breeding program. Social scientific research is needed to highlight the complex socioeconomic factors that inhibit efforts to initiate PPB programs. To contribute, we offer a case study of a participatory organic seed production project that involved a university breeding program, commercial organic seed dealers, and organic farmers in the Northeastern United States. We demonstrate that, although PPB may indeed promote agricultural biodiversity, several socioeconomic obstacles must be overcome to establish such a program.

Sustainability, Vol. 2, Pages 48-72: Sustainable Agriculture in the United States: A Critical Examination of a Contested Process

Douglas H. Constance — Mon, 28 Dec 2009 00:00:00 CET

This paper investigates the political economy of the development of sustainable agriculture programs and initiatives in the United States. Sustainable agriculture emerged as part of a growing critique of the negative environmental consequences of unquestioned modern farming methods. The USDA/Sustainable Agriculture Research Education Program created in 1990 and the National Organics Program created in 2002 are the current government-sponsored programs in support of sustainable agriculture. Recently, private approaches to develop a national sustainable agriculture standard for the U.S. have emerged. The events of the cases developed in the paper reveal that because the concept of sustainability is deeply contested, agribusiness is able to exploit the ambiguity surrounding the definition of sustainable and exercise power in attempts to frame sustainable agriculture in their favor. Most recently, this contested process has focused on whether genetically-modified organisms (GMOs) will be included as part of the national sustainable agriculture standard.

Sustainability, Vol. 2, Pages 30-47: The Role of Policies in Supporting the Diffusion of Solar Photovoltaic Systems: Experiences with Ontario, Canada’s Renewable Energy Standard Offer Program

Chris Adachi — Thu, 24 Dec 2009 00:00:00 CET

Traditionally, high initial capital costs and lengthy payback periods have been identified as the most significant barriers that limit the diffusion of solar photovoltaic (PV) systems. In November, 2006, the Ontario Power Authority (OPA) introduced the Renewable Energy Standard Offer Program (RESOP), offering owners of solar PV systems with a generation capacity under 10 MW a 20 year contract to sell electricity back to the grid at a guaranteed rate of CAD $0.42/kWh. While it is the intent of incentive programs such as the RESOP to begin to lower financial barriers in order to increase the uptake of solar PV systems, there is no guarantee that the level of participation will in fact rise. The "on-the-ground" manner in which consumers interact with such an incentive program ultimately determines its effectiveness. This paper analyzes the relationship between the RESOP and solar PV system consumers. Experiences of current RESOP participants are presented, wherein the factors that are either hindering or promoting utilization of the RESOP and the adoption of solar PV systems are identified.

Sustainability, Vol. 2, Pages 1-29: Structured Mental Model Approach for Analyzing Perception of Risks to Rural Livelihood in Developing Countries

Claudia R. Binder — Thu, 24 Dec 2009 00:00:00 CET

This paper presents the Structural Mental Model Approach aimed at understanding differences in perception between experts and farmers regarding the various livelihood risks farmers are confronted with. The SMMA combines the Sustainable Livelihood Framework with the Mental Model Approach and consists of three steps: (i) definition and weighting of different livelihood capitals; (ii) analysis of livelihood dynamics, and (iii) definition of the social capital by means of agent networks. The results provide a sound basis for the design of sustainable policy interventions such as communication and educational programs which consider farmers’ priorities and viewpoints.

Sustainability, Vol. 1, Pages 1444-1463: The Tenuous Use of Exergy as a Measure of Resource Value or Waste Impact

Kyrke Gaudreau — Wed, 23 Dec 2009 00:00:00 CET

Exergy is a thermodynamic concept that has been widely promoted for assessing and improving sustainability, notably in the characterization of resources and wastes. Despite having many notable benefits, exergy is often misused by authors who tend to apply it as an intrinsic characteristic of an object (i.e., as a static thermodynamic variable). Using both theoretical and empirical evidence the authors present five key limitations that must be overcome before exergy can be applied to characterize objects: (1) the incompatibility between exergy quality and resource quality; (2) the inability of exergy to characterize non work-producing resources via the concentration exergy; (3) the constraints placed on the derivation of exergy; (4) problems with the exergy reference environment; and (5) the multiple perspectives applied to exergy analysis. Until the limitations are addressed, exergy should only be used for its original purpose as a decision making tool for engineering systems analysis.

Sustainability, Vol. 1, Pages 1431-1443: Wood Polymer Composites Technology Supporting the Recovery and Protection of Tropical Forests: The Amazonian Phoenix Project

Marcia C. Branciforti — Tue, 22 Dec 2009 00:00:00 CET

The Amazon Rain Forest has attracted worldwide attention due its large scale services to climate and also due to the green house gas emissions arising from deforestation. Contributing to the later and detrimental to the former, timber logging in the region has very low efficiency (only 16% in the production chain). Such timber extraction, often referred to as selective logging, has been claimed as a sustainable extractive industry, because the forest is said to restore itself through regenerative growth. But forest regeneration in the Amazon occurs naturally only in a very limited scale, resulting that large scale, low efficiency logging poses a big treat to the functional integrity of the biome, supplying to the market only a fraction of what it could if done differently. So, instead of extracting big centennial logs from the forests, the Amazonian Phoenix project proposes that large expanses of degraded lands be reforested using pioneer plants species from the forest itself. These plants have the capacity to heal gaps in the canopy, being able to grow and produce woody biomass in very extreme conditions. The idea is to mimic the regenerative dynamics of the natural ecosystem in short cycle agrosilvicultural production areas, utilizing a variety of technologies to transform raw fibers from these fast growth native plants into a variety of materials with high aggregated value. This communication presents the research on natural fibers by the Polymeric Composites Group within the Amazonian Phoenix Project. Sustainable technologies employing materials with good and responsible ecological footprints are important and necessary stimulus for a change in the destructive economical activities present in the Amazon frontiers. The relatively well established wood polymer composites technology, for example, is a good candidate solution. Two research and development fields are proposed: the first one considers production systems with simple and cheap machinery, to facilitate technology assimilation by rural communities in the Amazon. The second one aims at developing composite materials with advanced production technology, like profile and sheet extrusion and injection molding. The source of the fibers would be both the short cycle agrosilviculture with softwood species, on already deforested lands, and the hardwood residues from operating sawmills. Preliminary results show that softwood fibers act as potentially important reinforcement for synthetic plastics.

Sustainability, Vol. 1, Pages 1412-1430: Sustainability: Living within One’s Own Ecological Means

Lee Liu — Mon, 21 Dec 2009 00:00:00 CET

This paper provides a critical review of sustainability, including its definitions, dimensions, measurements, and practices, as well as approaches to achieve sustainability. It raises questions about conventional definitions and argues for taking into account the geographic dimension of sustainability for better understanding of the regional differences in sustainability and transition to sustainability. The paper proposes that sustainability should be defined as "living within one’s own ecological means." This definition pays attention to regional disparities in biocapacity and ecological footprint. It realizes that not all people’s present and future needs may be met in all regions of the world.

Sustainability, Vol. 1, Pages 1388-1411: Sustainability between Necessity, Contingency and Impossibility

Karl Bruckmeier — Wed, 16 Dec 2009 00:00:00 CET

Sustainable use of natural resources seems necessary to maintain functions and services of eco- and social systems in the long run. Efforts in policy and science for sustainable development have shown the splintering of local, national and global strategies. Sustainability becomes contingent and insecure with the actors´ conflicting knowledge, interests and aims, and seems even impossible through the “rebound”-effect. To make short and long term requirements of sustainability coherent requires critical, comparative and theoretical analysis of the problems met. For this purpose important concepts and theories are discussed in this review of recent interdisciplinary literature about resource management.

Sustainability, Vol. 1, Pages 1366-1387: Negotiating Uncertainty: Jamaican Small Farmers’ Adaptation and Coping Strategies, Before and After Hurricanes—A Case Study of Hurricane Dean

Donovan Campbell — Wed, 16 Dec 2009 00:00:00 CET

In recent years, Jamaica has been seriously affected by a number of extreme meteorological events. The one discussed here, Hurricane Dean, passed along the south coast of the island in August 2007, damaging crops and disrupting livelihood activities for many small-scale farmers. This study is based on detailed ethnographic research in the southern coastal region of St. Elizabeth parish during the passage of Hurricane Dean, and explores the ways in which small farmers negotiate the stressors associated with hurricane events. The study employed a mix methods approach based on a survey of 282 farming households. The paper documents coping strategies employed by farmers in the immediate period of Hurricane Dean to reduce damage to their farming systems, and highlights the positive correlation between farmers’ perceptions of hurricanes and degree of damage to local farming systems. In addition, through an analysis of socio-economic and environmental data, the paper provides an understanding of the determinants of adaptive capacity and strategy among farmers in the area. The study indicated that despite high levels of vulnerability, farmers have achieved successful coping and adaptation at the farm level.

Sustainability, Vol. 1, Pages 1349-1365: Incentives for Improving Energy Efficiency When Renovating Large-Scale Housing Estates: A Case Study of the Swedish Million Homes Programme

Lovisa Högberg — Wed, 16 Dec 2009 00:00:00 CET

Sweden has adopted ambitious energy savings objectives for buildings, but at the current rate of energy efficiency investments the objectives are unlikely to be reached. In this article we report the early findings of how real estate owners reason and act in energy efficiency investment decisions. Based on the results from interviews with the real estate companies, the companies have been divided into four ideal types that illuminate the differences in energy efficiency ambition and strategies; the Strict Profit Maximizing Company, the Little Extra Company, the Policy Led Ambitious Company and the Administration Led Ambitious Company. The different strategies will determine how the companies respond to incentives to invest in energy efficiency, and affect the overall result in the energy efficiency work. The ideal types hence are important to have in mind when designing policies to increase energy efficiency.

Sustainability, Vol. 1, Pages 1331-1348: Using an Integrated Participatory Modeling Approach to Assess Water Management Options and Support Community Conversations on Maui

Andrea M. Bassi — Tue, 15 Dec 2009 00:00:00 CET

The purpose of this study is to provide an integrated analysis of water distribution on Maui and the cross-sectoral impacts of policies and regulations aimed at rejuvenating and sustaining the deep-rooted culture on the island. Since the water diversion system was implemented in 1876 on the island of Maui, there has been contention among local interest groups over the right way to manage and allocate this precious resource. There is also concern over the availability of the precious resource in the long term, as the demand for water is expected to exceed the potential supply of water on Maui by 2020. This paper analyzes various long run scenarios of policy options presently being discussed on Maui. By collaborating with local experts, business leaders, and community members, to develop a tool that facilitates policy formulation and evaluation, informed decisions can then be made by the local community to ensure sustainable development.

Sustainability, Vol. 1, Pages 1323-1330: Astrobiology, Sustainability and Ethical Perspectives

Jacques Arnould — Tue, 15 Dec 2009 00:00:00 CET

Astrobiology, a new field of research associating the prospects and constraints of prebiotic chemistry, mineralogy, geochemistry, astrophysics, theoretical physics, microbial ecology, etc., is assessed in terms of sustainability through the scientific and social functions it fulfils, and the limits it encounters or strives to overcome. In the same way as sustainable development, astrobiology must also take into account the temporal dimension specific to its field of investigation and examine its underlying conception of Nature.

Sustainability, Vol. 1, Pages 1305-1322: Economy and Sustainability—How Economic Integration Stimulates Stringent Environmental Regulations

Jale Tosun — Tue, 15 Dec 2009 00:00:00 CET

The interaction between economic integration and environmental policy has become an important issue in the last few years. Despite the considerable scholarly attention this topic attracted, actual government responses in terms of environmental policy outputs remain largely untouched by both theoretical and empirical work. To fill this gap, we suggest a theory-based disaggregation of the compound variable economic integration for deriving more precise expectations on its differential impact on environmental policy arrangements. In doing so, we show that economic integration may indeed trigger the promulgation of more demanding environmental regulations. To illustrate our arguments empirically, we analyze the development of Turkish clean air policy between 1975 and 2005.

Sustainability, Vol. 1, Pages 1288-1304: Emerging and Innovative Techniques for Arsenic Removal Applied to a Small Water Supply System

António A. L. S. Duarte — Fri, 11 Dec 2009 00:00:00 CET

The impact of arsenic on human health has led its drinking water MCL to be drastically reduced from 50 to 10 ppb. Consequently, arsenic levels in many water supply sources have become critical. This has resulted in technical and operational impacts on many drinking water treatment plants that have required onerous upgrading to meet the new standard. This becomes a very sensitive issue in the context of water scarcity and climate change, given the expected increasing demand on groundwater sources. This work presents a case study that describes the development of low-cost techniques for efficient arsenic control in drinking water. The results obtained at the Manteigas WTP (Portugal) demonstrate the successful implementation of an effective and flexible process of reactive filtration using iron oxide. At real-scale, very high removal efficiencies of over 95% were obtained.

Sustainability, Vol. 1, Pages 1266-1287: Visualizing Consolidation in the Global Seed Industry: 1996–2008

Philip H. Howard — Tue, 08 Dec 2009 00:00:00 CET

The commercial seed industry has undergone tremendous consolidation in the last 40 years as transnational corporations entered this agricultural sector, and acquired or merged with competing firms. This trend is associated with impacts that constrain the opportunities for renewable agriculture, such as reductions in seed lines and a declining prevalence of seed saving. To better characterize the current structure of the industry, ownership changes from 1996 to 2008 are represented visually with information graphics. Since the commercialization of transgenic crops in the mid-1990s, the sale of seeds has become dominated globally by Monsanto, DuPont and Syngenta. In addition, the largest firms are increasingly networked through agreements to cross-license transgenic seed traits.

Sustainability, Vol. 1, Pages 1240-1265: Water Management in a State-Centered Environment: Water Governance Analysis of Uzbekistan

Munira Aminova — Tue, 08 Dec 2009 00:00:00 CET

In the early 1990s the countries of Central Asia started their transformation to a market economy. Uzbekistan is in the throes of change and facing a huge restructuring task and a need to improve governance. Decades of central bureaucratic allocation of natural resources left national bureaucrats with little capacity to formulate their own sustainable policies. Lack of inclusive, long term oriented policies and mechanisms in management of common pool resources brought catastrophic results in the past. The study reveals that implanting a top-down quota policy has positive effects on a larger public. However it may become a threat to the long term environmental sustainability.

Sustainability, Vol. 1, Pages 1226-1239: New Challenge for Classics: Neutral Zinc Complexes Stabilised by 2,2’-Bipyridine and 1,10-Phenanthroline and Their Application in the Ring-Opening Polymerisation of Lactide

Janna Börner — Tue, 08 Dec 2009 00:00:00 CET

The zinc acetato and triflato complexes of 2,2’-bipyridine and 1,10-phenanthroline were prepared and completely characterised. The whole series (including the already described dichlorido complexes and the ligands themselves) were screened for their catalytic activity in the solvent free ring-opening polymerisation of D,L-lactide. The acetato and triflato complexes were found to be active initiators and polylactides could be obtained in almost quantitative yields or with high molecular weights, up to 145,000 g/mol.

Sustainability, Vol. 1, Pages 1195-1225: The Influence of Thermodynamic Ideas on Ecological Economics: An Interdisciplinary Critique

Geoffrey P. Hammond — Tue, 01 Dec 2009 00:00:00 CET

The influence of thermodynamics on the emerging transdisciplinary field of 'ecological economics‘ is critically reviewed from an interdisciplinary perspective. It is viewed through the lens provided by the 'bioeconomist' Nicholas Georgescu-Roegen (1906–1994) and his advocacy of 'the Entropy Law' as a determinant of economic scarcity. It is argued that exergy is a more easily understood thermodynamic property than is entropy to represent irreversibilities in complex systems, and that the behaviour of energy and matter are not equally mirrored by thermodynamic laws. Thermodynamic insights as typically employed in ecological economics are simply analogues or metaphors of reality. They should therefore be empirically tested against the real world.

Sustainability, Vol. 1, Pages 1161-1194: Hazards and Risks of Engineered Nanoparticles for the Environment and Human Health

Danail Hristozov — Mon, 30 Nov 2009 00:00:00 CET

The objectives of this article are to: (1) investigate the current state of knowledge of the risks of engineered nanoparticles for the environment and human health, (2) estimate whether this knowledge is sufficient to facilitate their comprehensive and effective risk assessment and (3) provide recommendations on future research in the field of risk assessment of nanomaterials. In order to meet the objectives, the relevance of each of the four steps of the risk assessment methodology (i.e., hazard identification, dose-response assessment, exposure assessment and risk characterization) was evaluated in the context of the current state of knowledge of the risks of nanomaterials, limitations were identified and recommendations were given on how to overcome them.

Sustainability, Vol. 1, Pages 1144-1160: Investment in Sustainable Development: A UK Perspective on the Business and Academic Challenges

Nigel Garland — Fri, 27 Nov 2009 00:00:00 CET

There are many legislative, stakeholder and supply chain pressures on business to be more ‘sustainable’. Universities have recognised the need for graduate knowledge and understanding of sustainable development issues. Many businesses and universities have responded and introduced Sustainable Development models into their operations with much of the current effort directed at climate change. However, as the current worldwide financial crisis slowly improves, the expectations upon how businesses operate and behave are changing. It will require improved transparency and relationships with all stakeholders, which is the essence of sustainable development. The challenges and opportunities for both business and universities are to understand the requirements of sustainable development and the transformation that is required. They should ensure that knowledge is embedded within the culture of the organisation and wider society in order to achieve a sustainable future.

Sustainability, Vol. 1, Pages 1120-1143: EU-Mercosur Trade Agreement: Potential Impacts on Rural Livelihoods and Gender (with Focus on Bio-fuels Feedstock Expansion)

Leonith Hinojosa — Thu, 26 Nov 2009 00:00:00 CET

The trade-sustainable impact assessment of the European Union-Mercosur trade agreement found that the economic impact of the trade liberalisation scenario could be positive in the agricultural sectors of Mercosur countries. However, it also found that the social and environmental impacts would be mixed and potentially detrimental. This paper addresses the likely effects on the livelihoods of vulnerable rural populations. It argues that the potential impacts can be analysed within a diversified livelihood strategies framework, which is expanded to include institutional and policy factors. It concludes that the negative expected impact responds to the highly uneven access to capital assets. On the other hand, the effects are not generalised to all Mercosur countries, nor to all regions in each of the member countries. Enhancing or mitigating measures refer to the importance of sequencing and regulation to improve disadvantaged groups‘ abilities to participate in trade-led agricultural intensification or industrialisation processes.

Sustainability, Vol. 1, Pages 1106-1119: Sustainability of Ancient Water Supply Facilities in Jerusalem

Jamal M. Barghouth — Wed, 25 Nov 2009 00:00:00 CET

This paper presents an overview on the sustainability of ancient water supply systems in Jerusalem from the Chalcolithic period (4500–3200 B.C.) until the present time. Archaeological evidences and landscape settings were applied utilizing all available and accessible literature relevant to ancient water resources management in Jerusalem. Irrigated agriculture was practiced for many centuries in this region, hence sustainable water supply facilities were erected, including well developed aqueducts, water harvesting pools and irrigation channels for water storage and landscaping purposes. To cope with seismic events, soil subsidence and water leakage, ancient water engineers and architects applied innovative construction methods for the erection of water pools, channels and aqueduct systems. Ancient water supply systems in Jerusalem are valuable treasures of past civilizations and crucial urban environmental facilities and their protection is consistent with sustainable development principles. Effective environmental assessment as a decision-making process for sustainable development can be applied to preserve threatened ancient water facilities from major development proposals and urban infrastructure projects in Jerusalem.

Sustainability, Vol. 1, Pages 1087-1105: A Model for Sustainable Humanitarian Engineering Projects

Bernard Amadei — Fri, 20 Nov 2009 00:00:00 CET

The engineering profession should embrace a new mission statement—to contribute to the building of a more sustainable, stable, and equitable world. Recently, engineering students and professionals in the United States have shown strong interest in directly addressing the needs of developing communities worldwide. That interest has taken the form of short-and medium-term international trips through Engineers Without Borders—USA and similar organizations. There are also several instances where this kind of outreach work has been integrated into engineering education at various US institutions such as the University of Colorado at Boulder. This paper addresses the challenges and opportunities associated with balancing two goals in engineering for humanitarian development projects: (i) effective sustainable community development, and (ii) meaningful education of engineers. Guiding principles necessary to meet those two goals are proposed.

Sustainability, Vol. 1, Pages 1069-1086: Incorporating User Performance Criteria into Building Sustainability Rating Tools (BSRTs) for Buildings in Operation

George Baird — Tue, 17 Nov 2009 00:00:00 CET

Current Building Sustainability Rating Tools (BSRTs) are concerned mainly with the technical features of new designs. The author argues for the inclusion of user performance criteria in BSRTs for buildings in operation. The case is based on insights gained from surveys of users of sustainable buildings worldwide, and a review of the pioneering NABERS protocol. The paper advocates the establishment of a set of user performance criteria for existing buildings, as a key ingredient in making progress towards a truly sustainable building stock as buildings that perform poorly from the users‘ point of view are unlikely to ever be sustainable.

Sustainability, Vol. 1, Pages 1042-1068: Sustainability in Agricultural Mechanization: Assessment of a Combined Photovoltaic and Electric Multipurpose System for Farmers

Hossein Mousazadeh — Tue, 17 Nov 2009 00:00:00 CET

This study is dedicated to the assessment of the possibility of replacing fossil fuels with renewable energy as a source of power in modern agriculture. We examined the use of a completely sustainable agricultural mechanization system based on a renewable energy system and a battery powered, multi-purpose agricultural vehicle. This assessment is based on the RAMseS project, financed by the European Commission under the 6th Framework Program, which has led to the actual manufacturing of the system, at present being tested in Lebanon. In the present study, we assess the environmental and economic performance of the RAMseS system. We evaluate the external costs by means of a specific model that takes into account the life-cycle cost (LCC), economical indexes, and life-cycle emissions for the vehicle during its life span. The results are compared with those of a standard vehicle based on the internal combustion engine (ICEV). The results show that the RAMseS system can avoid the emission of about 23 ton of CO2equ per year. The life cycle cost (LCC) assessment using MATLAB software shows that the LCC for the RAMseS vehicle and the ICEV are the same for a fuel unit price (pf) of 1.45 €/L. Finally, we show that almost 52 % of the RAMseS LCC is due to the batteries of the electric vehicle. A 50% decrease in batteries unit cost would cause the LCC of two system to be the same at a fuel cost of 0.8 €/L. The final result is that the RAMseS system remains—at present— marginally more expensive than an equivalent system based on conventional fuels and internal combustion engines. Nevertheless, with the gradual depletion of fossil fuels, all electric agricultural mechanized system provide an alternative solution that is dependent only on renewable energy and recyclable resources.

Sustainability, Vol. 1, Pages 1035-1041: Does Biodiesel from Jatropha Curcas Represent a Sustainable Alternative Energy Source?

Isidro Ovando-Medina — Mon, 16 Nov 2009 00:00:00 CET

Various government agencies around the world have proposed vegetable oils and their conversion to biodiesel as a renewable alternative to fossil fuels. Due to its adaptability to marginal soils and environments, the cultivation of Jatropha curcas is frequently mentioned as the best option for producing biodiesel. In the present work the current situation of proven and potential reserves of fossil fuel, and the production and consumption model for the same are analyzed, in order to later review the sustainability of the production process which begins with the cultivation of J. curcas, and culminates with the consumption of biodiesel. A review of the following topics is proposed in order to improve the sustainability of the process: areas destined for cultivation, use of external (chemical) inputs in cultivation, processes for converting the vegetable oil to biodiesel, and, above all, the location for ultimate consumption of the biofuel.

Sustainability, Vol. 1, Pages 1023-1034: Towards Sustainable Urban Water and Sanitation Services: Barriers and Bridges

Peder Hjorth — Thu, 12 Nov 2009 00:00:00 CET

The Mar del Plata International Water Conference provided the first global assessment of the water sector. It was found that in most developing countries the state of water supply and sanitation services were deplorable. Consequently, a call for concerted action to improve coverage and efficiency of the water supply and sanitation sector was launched. This call resulted in the International Water Supply and Sanitation Decade (1981–1990). The Decade provided important lessons concerning effective methodologies to improve the state of the WSS sector. The paper discusses why the poor state of the water supply and sanitation conditions still tend to be the greatest development failure during the 20th century. The recipe for success was there, and the money was there. So, why were governments and big donors like the World Bank refusing to apply the lessons from the Decade? The basic conditions for success are spelled out, and some successful cases are used to illustrate these. The conclusion is that change is possible but that civil society organizations have to be empowered to make governments "feel the heat" and spend more money on water and sanitation, and to spend it more wisely.

Sustainability, Vol. 1, Pages 1012-1022: Sustainable Development in Northern Africa: The Argan Forest Case

Zoubida Charrouf — Mon, 09 Nov 2009 00:00:00 CET

The argan tree is a slow growing tree exclusively endemic in the dry lowlands of Southwest Morocco. The argan forest constitutes a long time ignored specific biotope that has been declared a Biosphere Reserve by UNESCO in 1998. The argan forest is particularly fragile to climate change. Forecasts show annual precipitation levels and prolonged drought periods that could severely threaten the future of the argan forest. In some places, the argan forest is already damaged, resulting in the retreat of the argan tree and the subsequent desert encroachment. An acceleration of this trend would have devastating consequences. In response, some twenty years ago, an ambitious, unique in Northern-Africa, and government-supported program was initiated in Morocco to rescue the argan tree via the sustainable development of the argan forest. Because in the late 1980s, sustainable development in developing countries was often considered as a utopia, the argan forest case represents a sign of progress, as it is also an interesting and unique experience in Africa. This review analyses the process followed, the measures taken, the pitfalls encountered, and the results obtained during the last two decades. It also points out the measures that still need to be taken before declaring the argan forest rescue mission is accomplished.

Sustainability, Vol. 1, Pages 994-1011: The Impact of Field Size on the Environment and Energy Crop Production Efficiency for a Sustainable Indigenous Bioenergy Supply Chain in the Republic of Ireland

Rory Deverell — Wed, 04 Nov 2009 00:00:00 CET

This paper investigates, using the GIS platform, the potential impacts of meeting national bioenergy targets using only indigenous sources of feedstock on the habitats and carbon stores that exist within Ireland’s field boundaries. A survey of the Republic of Irelands field was conducted in order to estimate and map the size and geographic distribution of the Republic of Ireland’s field boundaries. The planting and harvesting costs associated with possible bioenergy crop production systems were determined using the relationship between the seasonal operating efficiency and the average field size. The results indicate that Ireland will need a large proportion of its current agricultural area (at least 16.5%) in order to its meet national bioenergy targets by 2020. The demand cannot be met by the current area that both has suitable soil type for growing the bioenergy crops and is large enough for the required operating efficiency. The results of this study indicate that implementing and meeting national bioenergy targets using only indigenous feedstock will likely impact the country’s field boundary resources negatively, as crop producers seek to improve production efficiency through field consolidation and field boundary removal. It was found that such boundary removal results in a loss of up to 6 tC/km2 and 0.7 ha/km of previously permanent habitat where average field size is small. The impact of field consolidation on these resources reduces substantially as larger fields become consolidated.

Sustainability, Vol. 1, Pages 978-993: Membrane Processes Based on Complexation Reactions of Pollutants as Sustainable Wastewater Treatments

Raffaele Molinari — Wed, 04 Nov 2009 00:00:00 CET

Water is today considered to be a vital and limited resource due to industrial development and population growth. Developing appropriate water treatment techniques, to ensure a sustainable management, represents a key point in the worldwide strategies. By removing both organic and inorganic species using techniques based on coupling membrane processes and appropriate complexing agents to bind pollutants are very important alternatives to classical separation processes in water treatment. Supported Liquid Membrane (SLM) and Complexation Ultrafiltration (CP-UF) based processes meet the sustainability criteria because they require low amounts of energy compared to pressure driven membrane processes, low amounts of complexing agents and they allow recovery of water and some pollutants (e.g., metals). A more interesting process, on the application point of view, is the Stagnant Sandwich Liquid Membrane (SSwLM), introduced as SLM implementation. It has been studied in the separation of the drug gemfibrozil (GEM) and of copper(II) as organic and inorganic pollutants in water. Obtained results showed in both cases the higher efficiency of SSwLM with respect to the SLM system configuration. Indeed higher stability (335.5 vs. 23.5 hours for GEM; 182.7 vs. 49.2 for copper(II)) and higher fluxes (0.662 vs. 0.302 mmol·h-1·m-2 for GEM; 43.3 vs. 31.0 for copper(II)) were obtained by using the SSwLM. Concerning the CP-UF process, its feasibility was studied in the separation of metals from waters (e.g., from soil washing), giving particular attention to process sustainability such as water and polymer recycle, free metal and water recovery. The selectivity of the CP-UF process was also validated in the separate removal of copper(II) and nickel(II) both contained in synthetic and real aqueous effluents. Thus, complexation reactions involved in the SSwLM and the CP-UF processes play a key role to meet the sustainability criteria.

Sustainability, Vol. 1, Pages 960-977: Resource Allocation for Sustainable Urban Transit from a Transport Diversity Perspective

Cheng-Min Feng — Mon, 02 Nov 2009 00:00:00 CET

Different transport stakeholders have different needs for transport infrastructure and services. Meeting the needs of all stakeholders implies a trade-off of benefits and costs between supply and demand and creates transport diversity issues. However, the literature has largely ignored these issues. Transport diversity can assess the level to which important needs are satisfied equitably, and monitor whether transportation systems are moving towards sustainability by confirming the targets and basic level of quality of life. Based on the concept of transport diversity, this study utilizes fuzzy multi-objective programming to solve non-linear multi-objective problems involving urban public transit systems to determine the impact of resource allocation on needs satisfaction in relation to stakeholder behaviors. The proposed approach avoids problems of inefficient and inequitable resource allocation. A real-life case is presented to demonstrate the feasibility of applying the proposed methodology. Furthermore, empirical outcomes show that recent investments allocated to public transit systems considered equitable stakeholder satisfaction for both mass rapid transit (MRT) and bus, and also promoted transport diversity in the Taipei metropolitan area.

Sustainability, Vol. 1, Pages 946-959: Enabling Sustainability: Hierarchical Need-Based Framework for Promoting Sustainable Data Infrastructure in Developing Countries

David O. Yawson — Mon, 02 Nov 2009 00:00:00 CET

The paper presents thoughts on Sustainable Data Infrastructure (SDI) development, and its user requirements bases. It brings Maslow's motivational theory to the fore, and proposes it as a rationalization mechanism for entities (mostly governmental) that aim at realizing SDI. Maslow's theory, though well-known, is somewhat new in geospatial circles; this is where the novelty of the paper resides. SDI has been shown to enable and aid development in diverse ways. However, stimulating developing countries to appreciate the utility of SDI, implement, and use SDI in achieving sustainable development has proven to be an imposing challenge. One of the key reasons for this could be the absence of a widely accepted psychological theory to drive needs assessment and intervention design for the purpose of SDI development. As a result, it is reasonable to explore Maslow’s theory of human motivation as a psychological theory for promoting SDI in developing countries. In this article, we review and adapt Maslow’s hierarchy of needs as a framework for the assessment of the needs of developing nations. The paper concludes with the implications of this framework for policy with the view to stimulating the implementation of SDI in developing nations.

Sustainability, Vol. 1, Pages 924-945: Chemically Modified Cyclodextrins: An Attractive Class of Supramolecular Hosts for the Development of Aqueous Biphasic Catalytic Processes

Hervé Bricout — Tue, 27 Oct 2009 00:00:00 CET

During these last years, cyclodextrins have contributed greatly to the development of catalytic processes in water. These cyclic oligosaccharides composed of 6(α), 7(β) or 8(γ) glucopyranose units improve the mass transfer in aqueous-organic two-phase systems and are useful compounds to design new catalysts. Thus, chemically modified cyclodextrins can be used to: (i) increase significantly the rate and selectivity of reactions catalyzed by water-soluble organometallic complexes, (ii) design new water-soluble ligands for aqueous organometallic catalysis, (iii) stabilize catalytically active noble metal nanoparticles in water and (iv) favour the dispersion and activation of the palladium on charcoal in water.

Sustainability, Vol. 1, Pages 855-923: Formation and Control of Self-Sealing High Permeability Groundwater Mounds in Impermeable Sediment: Implications for SUDS and Sustainable Pressure Mound Management

David D. J. Antia — Mon, 26 Oct 2009 00:00:00 CET

A groundwater mound (or pressure mound) is defined as a volume of fluid dominated by viscous flow contained within a sediment volume where the dominant fluid flow is by Knudsen Diffusion. High permeability self-sealing groundwater mounds can be created as part of a sustainable urban drainage scheme (SUDS) using infiltration devices. This study considers how they form, and models their expansion and growth as a function of infiltration device recharge. The mounds grow through lateral macropore propagation within a Dupuit envelope. Excess pressure relief is through propagating vertical surge shafts. These surge shafts can, when they intersect the ground surface result, in high volume overland flow. The study considers that the creation of self-sealing groundwater mounds in matrix supported (clayey) sediments (intrinsic permeability = 10–8 to 10–30 m3 m–2 s–1 Pa–1) is a low cost, sustainable method which can be used to dispose of large volumes of storm runoff (<20→2,000 m3/24 hr storm/infiltration device) and raise groundwater levels. However, the inappropriate location of pressure mounds can result in repeated seepage and ephemeral spring formation associated with substantial volumes of uncontrolled overland flow. The flow rate and flood volume associated with each overland flow event may be substantially larger than the associated recharge to the pressure mound. In some instances, the volume discharged as overland flow in a few hours may exceed the total storm water recharge to the groundwater mound over the previous three weeks. Macropore modeling is used within the context of a pressure mound poro-elastic fluid expulsion model in order to analyze this phenomena and determine (i) how this phenomena can be used to extract large volumes of stored filtered storm water (at high flow rates) from within a self-sealing high permeability pressure mound and (ii) how self-sealing pressure mounds (created using storm water infiltration) can be used to provide a sustainable low cost source of treated water for agricultural, drinking, and other water abstraction purposes.

Sustainability, Vol. 1, Pages 838-854: Evolution of Sustainability in American Forest Resource Management Planning in the Context of the American Forest Management Textbook

Thomas J. Straka — Thu, 22 Oct 2009 00:00:00 CEST

American forest resource management and planning goes back to the European roots of American Forestry. Timber management plans, documents based on forest regulation for timber production, were the foundation of American forestry. These types of management plans predominated until World War II. Multiple use forestry developed after World War II and issues like recreation, wildlife, water quality, and wilderness became more important. In the 1970’s harvest scheduling became part of the planning process, allowing for optimization of multiple goals. By 2001 social, environmental, and economic goals were integrated into the timber production process. American forestry experienced distinct historical periods of resource planning, ranging from classic sustained yield timber production, to multiple use-sustained yield, to sustainable human-forest systems. This article traces the historical changes in forest management planning philosophy using the forest management textbooks of the time. These textbooks provide insight into the thought process of the forestry profession as changes in the concept of sustainability occurred.

Sustainability, Vol. 1, Pages 827-837: An Astrobiological View on Sustainable Life

Takeshi Naganuma — Mon, 19 Oct 2009 00:00:00 CEST

Life on a global biosphere basis is substantiated in the form of organics and organisms, and defined as the intermediate forms (briefly expressed as CH2O) hovering between the reduced (CH4, methane) and (CO2, carbon dioxide) ends, different from the classical definition of life as a complex organization maintaining ordered structure and information. Both definitions consider sustenance of life meant as protection of life against chaos through an input of external energy. The CH2O-life connection is maintained as long as the supply of H and O lasts, which is in turn are provided by the splitting of the water molecule H2O. Water is split by electricity, as well-known from school-level experiments, and by solar radiation and geothermal heat on a global scale. In other words, the Sun’s radiation and the Earth’s heat as well as radioactivity split water to supply H and O for continued existence of life on the Earth. These photochemical, radiochemical and geothermal processes have influences on the evolution and current composition of the Earth’s atmosphere, compared with those of Venus and Mars, and influences on the planetary climatology. This view of life may be applicable to the “search-for-life in space” and to sustainability assessment of astrobiological habitats.

Sustainability, Vol. 1, Pages 815-826: Marketing Sustainable Consumption within Stores: A Case Study of the UK’s Leading Food Retailers

Peter Jones — Mon, 12 Oct 2009 00:00:00 CEST

Sustainable consumption is a core policy objective within the UK Government’s Sustainable Development Strategy and there is a growing awareness that retailers have a vital role to play in promoting more sustainable patterns of consumption. This paper explores how the UK’s top ten food retailers are communicating sustainable consumption agendas to their customers within stores in the towns of Cheltenham and Gloucester. The findings reveal that while these retailers are providing customers with some information on sustainable consumption the dominant thrust of marketing communication within stores is designed to encourage consumption. The paper concludes with some reflections on how sustainable consumption fits into the large food retailers’ business models.

Sustainability, Vol. 1, Pages 789-814: Place-Making through Water Sensitive Urban Design

Byron Vernon — Wed, 30 Sep 2009 00:00:00 CEST

The paper aims to develop a practice and evaluation model for public open spaces in residential areas that considers water sensitive urban design techniques contributing to place-making.

Sustainability, Vol. 1, Pages 734-788: The Realities of Community Based Natural Resource Management and Biodiversity Conservation in Sub-Saharan Africa

Paul Andre DeGeorges — Fri, 25 Sep 2009 00:00:00 CEST

This is an historic overview of conservation in Sub-Saharan Africa from pre-colonial times through the present. It demonstrates that Africans practiced conservation that was ignored by the colonial powers. The colonial market economy combined with the human and livestock population explosion of the 21st century are the major factors contributing to the demise of wildlife and critical habitat. Unique insight is provided into the economics of a representative safari company, something that has not been readily available to Community Based Natural Resources Management (CBNRM) practitioners. Modern attempts at sharing benefits from conservation with rural communities will fail due to the low rural resource to population ratio regardless of the model, combined with the uneven distribution of profits from safari hunting that drives most CBNRM programs, unless these ratios are changed. Low household incomes from CBNRM are unlikely to change attitudes of rural dwellers towards Western approaches to conservation. Communities must sustainably manage their natural areas as "green factories" for the multitude of natural resources they contain as a means of maximizing employment and thus household incomes, as well as meeting the often overlooked socio-cultural ties to wildlife and other natural resources, which may be as important as direct material benefits in assuring conservation of wildlife and its habitat. For CBNRM to be successful in the long-term, full devolution of ownership over land and natural resources must take place. In addition, as a means of relieving pressure on the rural resource base, this will require an urbanization process that creates a middleclass, as opposed to the current slums that form the majority of Africa‘s cities, through industrialization that transforms the unique natural resources of the subcontinent (e.g., strategic minerals, petroleum, wildlife, hardwoods, fisheries, wild medicines, agricultural products, etc.) in Africa.

Sustainability, Vol. 1, Pages 722-733: Environmental Strategies for Electrical and Electronic Equipment Supply Chains: Which to Choose?

Patroklos Georgiadis — Wed, 23 Sep 2009 00:00:00 CEST

Waste electrical and electronic equipment is one of the major world-wide waste streams triggering the emergence of environmental strategies. Environmental regulations, closed-loop supply chain (CLSC) activities and design-for-environment (DfE) practices are environmental friendly strategies being implemented by governments and industry. In this paper, we apply a System Dynamics model to a CLSC of electrical and electronic equipment in Greece. Extensive numerical investigation provides insights regarding the impact of different legislative measures, CLSC activities and DfE practices on the environmental (availability of natural resources and landfills) and economic sustainability.

Sustainability, Vol. 1, Pages 702-721: Exploring and Contextualizing Public Opposition to Renewable Electricity in the United States

Benjamin K. Sovacool — Mon, 21 Sep 2009 00:00:00 CEST

This article explores public opposition to renewable power technologies in the United States. It begins by discussing the genesis of environmental ethics, or how some Americans have come to place importance on the protection of the environment and preservation of species, ecosystems, and the biosphere. As result, renewable power systems have become challenged on ethical and environmental grounds and are occasionally opposed by local communities and environmentalists. The article finds that, however, such concern may be misplaced. Renewable electricity resources have many environmental benefits compared to power stations fueled by coal, oil, natural gas, and uranium. Opposition towards renewable resources can at times obscure the true costs and risks associated with electricity use and entrench potential racial and class-based inequalities within the current energy system.

Sustainability, Vol. 1, Pages 674-701: Life-Cycle Assessment and the Environmental Impact of Buildings: A Review

Mohamad Monkiz Khasreen — Fri, 18 Sep 2009 00:00:00 CEST

Life-Cycle Assessment (LCA) is one of various management tools for evaluating environmental concerns. This paper reviews LCA from a buildings perspective. It highlights the need for its use within the building sector, and the importance of LCA as a decision making support tool. It discusses LCA methodologies and applications within the building sector, reviewing some of the life-cycle studies applied to buildings or building materials and component combinations within the last fifteen years in Europe and the United States. It highlights the problems of a lack of an internationally comparable and agreed data inventory and assessment methodology which hinder the application of LCA within the building industry. It identifies key areas for future research as (i) the whole process of construction, (ii) the relative weighting of different environmental impacts and (iii) applications in developing countries.

Sustainability, Vol. 1, Pages 662-673: Business Students’ Conceptions of Sustainability

Anna Reid — Wed, 16 Sep 2009 00:00:00 CEST

In the field of higher education, the role of sustainability is increasingly seen as an important capability of successful graduates, one of a group of higher-level dispositions that is particularly important for students’ future professional roles. Discussion of sustainability often assumes that all participants understand the term in the same way, and different understandings can make meaningful dialogue difficult. This article presents an empirical investigation of the ways in which students from a business faculty at a large metropolitan university view sustainability in the specific context of their tertiary education. While some students viewed the notion in quite naïve ways—for example, the idea of ‘keeping themselves going’—others talked about much broader views incorporating ideas of inter-generational justice. Investigation of such views provides important evidence for dialogue on sustainability with the next generation of professional leaders in business.

Sustainability, Vol. 1, Pages 628-661: Lessons from Participatory Evaluation of Cropping Practices in Yunnan Province, China: Overview of the Effectiveness of Technologies and Issues Related to Technology Adoption

Madhu Subedi — Wed, 16 Sep 2009 00:00:00 CEST

Increasing crop production, while maintaining sustainability, is a priority for agricultural development projects, particularly in developing countries. This study investigated the factors contributing to the effectiveness of agricultural development projects in improving the sustainability of cropping systems in a small upland watershed in south-west China. This involved a review of recent related projects and detailed evaluation of one project: the SHASEA Project. Farmers’ perceptions of several agricultural technologies are discussed, along with factors contributing to farmers’ adoption of these technologies. Local, national and international institutions need to adopt several strategies to improve project effectiveness and agro-environmental sustainability.

Sustainability, Vol. 1, Pages 612-627: Tools for Measuring Progress towards Sustainable Neighborhood Environments

Elizabeth Karol — Thu, 03 Sep 2009 00:00:00 CEST

Various assessment tools are available to assist designers, developers and regulatory bodies to reduce the negative impacts of contemporary multi-housing subdivision projects in industrialized countries. These tools vary considerably in what and how they measure and how the measurement results are presented and interpreted. This paper is largely a desktop study of subdivision assessment tools developed in Australasia, Great Britain and the United States of America. The paper identified a variety of themes and sub-themes that support assessment tools at both the project design phase and the project operational phase. These themes and sub-themes revolve around one or more of the three pillars of sustainability—namely the environmental, economical and social pillars. The paper firstly compares the themes and sub-themes of the assessment tools and then relates those themes to a set of sustainability targets produced for a proposed inner suburban housing subdivision in Perth, Western Australia.

Sustainability, Vol. 1, Pages 592-611: Potential Challenges Faced by the U.S. Chemicals Industry under a Carbon Policy

Andrea Bassi — Thu, 03 Sep 2009 00:00:00 CEST

Chemicals have become the backbone of manufacturing within industrialized economies. Being energy-intensive materials to produce, this sector is threatened by policies aimed at combating and adapting to climate change. This study examines the worst-case scenario for the U.S. chemicals industry when a medium CO2 price policy is employed. After examining possible industry responses, the study goes on to identify and provide a preliminary evaluation of potential opportunities to mitigate these impacts. If climate regulations are applied only in the United States, and no action is taken to invest in advanced low- and no-carbon technologies to mitigate the impacts of rising energy costs, the examination shows that climate policies that put a price on carbon could have substantial impacts on the competiveness of the U.S. chemicals industry over the next two decades. In the long run, there exist technologies that are available to enable the chemicals sector to achieve sufficient efficiency gains to offset and manage the additional energy costs arising from a climate policy.

Sustainability, Vol. 1, Pages 573-591: Growth and Development in the U.S. Retail Organic Food Sector

Travis A. Smith — Thu, 03 Sep 2009 00:00:00 CEST

This study uses retail purchase data reported by the Nielsen Homescan panel to examine the development of selected U.S. organic food sectors since the implementation of the National Organic Standards. Results show that organic market shares within the fresh fruit and vegetable sectors grew slightly in 2003–2006. Apples, bananas, carrots, and tomatoes prove to have the highest share of organic sales within their sectors. The share of organic milk sales attributed to private labels has increased from 12 to 32 percent in 2004–2007. The organic market share within the strained baby food sector almost doubled from 8 to 15 percent in 2004–2007. Findings show a demographically diverse group of consumers willing to expend their food dollars on organic foods.

Sustainability, Vol. 1, Pages 556-572: Assessing Public Attitudes and Behaviour to Household Waste Management in Cameroon to Drive Strategy Development: A Q Methodological Approach

Lawrence O. Mbeng — Thu, 03 Sep 2009 00:00:00 CEST

Household waste is an environmental and public health problem, especially for the large cities in Sub-Saharan African countries. While the improper management of household waste in Cameroon is linked to the systematic failure of policy makers and municipal authorities to identify the most sustainable ways of dealing with it in such a manner that is in line is with their socio-economic aspirations, the impact of public attitudes and behaviour has been neglected. It is in this context that this paper uses Q-methodology, a powerful methodology for identifying the different trends in behaviour in the management of household waste in Douala, Cameroon.

Sustainability, Vol. 1, Pages 537-555: Sustainability Promotion and Branding: Messaging Challenges and Possibilities for Higher Education Institutions

David Selby — Mon, 31 Aug 2009 00:00:00 CEST

This paper reports on case study research into six higher education institutions (three in the UK and three in the USA) that give prominence to their sustainability credentials in their paper form and/or electronic promotional and recruitment materials. The purpose of the research was to draw important lessons and identify significant issues concerning the sustainability branding and marketing of higher education institutions. Key findings include, first, the importance of calibrating sustainability marketing according to actual sustainability performance while also embracing a sustainability vision; second, the importance of combining internal with external marketing; third, the importance of institutional clarity in determining marketing parameters; fourth, the advantages of marrying broad-based ‘subtle’ marketing with intensive niche and segment marketing. It was found, too, that higher education institutions with a sustainability brand are not collecting systematic data to assess marketing impact on student recruitment, or utilizing the sustainability/employability interface to good marketing effect, or employing a multi-dimensional conception of sustainability in their marketing. There is clear evidence of the stirrings of movement away from paper-form towards electronic marketing across the cases considered. An overarching insight of the study is that rigorous institutional engagement with marketing sustainability credentials can have a significant impact on the quality and depth of sustainability performance by helping spread, enrich and diversify the institutional sustainability culture.

Sustainability, Vol. 1, Pages 516-536: The Growth Delusion

Bob Lloyd — Mon, 24 Aug 2009 00:00:00 CEST

Concern for the environment and a move towards “sustainable development” has assisted progress in a wide range of renewable energy technologies in recent years. The science suggests that a transition from fossil fuels to sustainable sources of energy in a time frame commensurate with the demise of the fossil fuels and prevention of runaway climate change is needed. However, while the movement towards sustainable energy technologies is underway, the World does not want to give up the idea of continuing economic growth. In recent times the financial collapse of October 2008 has given rise to yet another set of pleas from corporations and politicians alike to restart the growth machine. The transition to renewable energy technologies will be difficult to achieve as nowhere within existing economic and political frameworks are the limits to when growth will be curtailed being set. It is possible that the irrational insistence on endless growth as a non negotiable axiom, by a large proportion of the world’s population, may in fact be akin to the similarly irrational belief, by a similarly large proportion of the world’s population, that a supernatural being controls our existence and destiny. The irrationality of religion has recently been examined by Richard Dawkins in “The God Delusion”. Dawkins’ book is used as a starting point to investigate similarities between a belief in God and a belief in continuous growth.

Sustainability, Vol. 1, Pages 494-515: Assessment of Global Emissions, Local Emissions and Immissions of Different Heating Systems

Johannes Henkel — Wed, 19 Aug 2009 00:00:00 CEST

This paper assesses and compares existing and new technologies for space heating in Germany (e.g., heat pumps, and solar thermal and wood pellet systems) in terms of their environmental impacts. The various technologies were analyzed within the context of the new German legislation. The assessment was carried out on three levels: 1. Global emissions: a life cycle assessment was carried out in order to find the global environmental footprint of the various technologies; 2. Local emissions: the effects of local emissions on human health were analyzed; and 3. Immissions: the immissions were evaluated for the various technologies using a dispersion calculation. A special feature of this study is the substitution of frequently used database emission values by values obtained from field studies and our own measurements. The results show large differences between the different technologies: while electric heat pumps performed quite well in most categories, wood pellet systems performed the best with respect to climate change. The latter, however, are associated with high impacts in other environmental impact categories and on a local scale. The promotion of some technologies (especially systems based on fuel oil, a mixture of fuel oil and rapeseed oil, or a mixture of natural gas and biomethane) by the newly introduced German legislation is doubtful. In terms of the immissions of wood pellet systems, it can be concluded that, even for extremely unfavorable meteorological conditions, the regulatory limits are not exceeded and the heating systems have a negligible influence on the total PM load in the ambient air.

Sustainability, Vol. 1, Pages 479-493: Educating for Local Development and Global Sustainability: An Overview in Spain

María Angeles Murga-Menoyo — Fri, 14 Aug 2009 00:00:00 CEST

The following are systematized examples, taken from the general panorama of activities currently being implemented in Spain, of significant experiences and formative strategies of local sustainable development. They correspond to three different intervention areas in education: different levels in the school system, adults training in competence and technical abilities, and community education. They offer a contextualized model of education intervention that contributes to ecological and environmental sustainability, social promotion and productive competitiveness. The experiences described permit, in many cases, changes of life styles and social customs, adjusting them to the requirements of sustainable development; in others, to form new generations for local sustainable development and global sustainability. Although procedures must vary to suit the particular features inherent in each such realm, it is the function of education to tackle first and foremost the training of the intellect, the education of emotions and moral personality, and the acquisition of professional skills.

Sustainability, Vol. 1, Pages 464-478: U.S. Demand for Organic and Conventional Fresh Fruits: The Roles of Income and Price

Biing-Hwan Lin — Fri, 14 Aug 2009 00:00:00 CEST

Using retail purchase data reported by Nielsen’s Homescan panel this study investigates the U.S. demand for organic and conventional fresh fruits. The study fills an important research void by estimating the much needed income and price elasticities for organic and conventional fruits utilizing a censored demand approach. Household income is found to affect organic fruit consumption. Consumers are more responsive to price of organic fruits than to price of conventional fruits. Cross-price effects suggest that a change in relative prices will more likely induce consumers to “cross-over” from buying conventional fruits to buying organic fruits, while it is less likely that organic consumers will “revert” to buying conventional fruits.

Sustainability, Vol. 1, Pages 441-463: Linkage-Based Frameworks for Sustainability Assessment: Making a Case for Driving Force-Pressure-State-Exposure-Effect-Action (DPSEEA) Frameworks

Bushra Waheed — Mon, 10 Aug 2009 00:00:00 CEST

The main objective of this paper is to discuss different approaches, identify challenges, and to select a framework for delivering effective sustainability assessments. Sustainable development is an idealistic concept and its assessment has always been a challenge. Several approaches, methodologies and conceptual frameworks have been developed in various disciplines, ranging from engineering to business and to policy making. The paper focuses mainly on various linkage-based frameworks and demonstrates that the driving force-state-exposure-effect-action (DPSEEA) framework can be used to achieve sustained health benefits and environmental protection in accordance with the principles of sustainable development, especially because of its resemblance to the environmental risk assessment and management paradigms. The comparison of linkage-based frameworks is demonstrated through an example of sustainability in a higher educational institution.

Sustainability, Vol. 1, Pages 425-440: Public Health and the Environment: What Skills for Sustainability Literacy – And Why?

Walid El Ansari — Thu, 06 Aug 2009 00:00:00 CEST

This paper is an exploration and reflection on the question of what skills, values, attributes and dispositions learners will need to navigate their lives in the challenging conditions of the twenty first century, in relation to sustainability and well-being. First, an overview of the multiple concepts that are considered important for sustainability literacy is gradually built up. These include: multiple ‘bottom lines’ and contexts of wellbeing, climate change, collective action at various levels, good citizenship, community participation, information technology, psychological aspects, behavioral features and researching sustainability. Secondly, a wide range of skills that learners will require in order to interact with these concepts are explored. The emerging relationships between the given concepts and their attending skills are neither definitive nor prescriptive, but provide an indication of what sustainability literacy could be useful for learners and practitioners in order to enable them to contribute towards the wellbeing of sustainable societies. The paper concludes with that a fundamental overarching skill for sustainability is the ability to work constructively with others in building more sustainable communities, businesses and societies.

Sustainability, Vol. 1, Pages 409-424: Design for Sustainability: Current Trends in Sustainable Product Design and Development

Garrette Clark — Tue, 04 Aug 2009 00:00:00 CEST

The Design for Sustainability (D4S) concept outlines methodologies for making sustainable improvements (social, economic and environmental) to products by applying elements of life cycle thinking. D4S builds on the work of ecodesign to include economic and social concerns, and its methodology includes both incremental and radical innovation. The United Nations Environment Programme and the Delft University of Technology, the Netherlands, in concert with key partners, work to support, illustrate, and diffuse targeted D4S demonstration efforts, including the European Commission-funded Cleaner Production for Better Products project in Vietnam, that are needed to change unsustainable consumption and production patterns.

Sustainability, Vol. 1, Pages 384-408: Policy and Planning Challenges to Promote Efficient Urban Spatial Development during the Emerging Rapid Transformation in China

Chengri Ding — Mon, 03 Aug 2009 00:00:00 CEST

This paper investigates the linkage between emerging urban spatial development and institutional arrangements in China. Emerging spatial patterns, which are prevalent and sizable so that any impacts will be substantial, include dispersed employment concentration, fragmented land development, over-scaled land development, leapfrogging development, and whack-a-mole development. From the institutional point of view, these patterns are associated with decentralization, fiscal incentives for local government, land regulations, and fragmented planning system. It is concluded that these emerging spatial patterns significantly affect long term city sustainable growth and comprehensive reforms are needed to promote efficient urban spatial forms. It is further concluded that labor division between planning and markets should be reshaped in determining urban spatial growth by shifting planning to focus on zoning that provides sufficient development room in a long term and making markets to decide the timing of land development.

Sustainability, Vol. 1, Pages 363-383: Social Equity Considerations in the Implementation of Caribbean Climate Change Adaptation Policies

Hari B. Dulal — Thu, 23 Jul 2009 00:00:00 CEST

As the Small Island Developing States of the Caribbean prepare to take climate change adaptation measures, there is a distinct possibility that the most vulnerable groups, especially the poor, women, indigenous, elderly, and children in rural and coastal communities are at risk of being marginalized. It is necessary to take into consideration the adaptation needs of these groups that are likely to be disproportionately affected due to inherent structural and social disparities. In this paper we focus on the need to ensure inclusion and social equity in adaptation planning as climate change issues disproportionately impact health, settlement, and livelihoods of these vulnerable groups. We also focus on climate change potential impacts on tourism, agriculture and fisheries sectors, which are the major economic drivers of these island states. Based on Caribbean region wide observations, we recommend priority areas including increasing community participation, local initiatives and filling critical socio-economic and livelihood data gaps, which policy makers need to focus on and incorporate in their climate change adaptation plans in order to ensure effective and equitable climate change adaptation

Sustainability, Vol. 1, Pages 346-362: Sustainability and Urban Dynamics: Assessing Future Impacts on Ecosystem Services

Brian Deal — Wed, 22 Jul 2009 00:00:00 CEST

Sustainable management of a region’s critical and valued ecosystem resources requires an understanding about how these resource systems might function into the future. In urbanized areas, this requires the ability to frame the role of resources within the context of urban dynamics and the implications of policy and investment choices. In this paper we describe a three-step approach to assessing the impact of future urban development on ecosystem services: 1) characterize key ecosystem resources and services, 2) forecast future land-use changes, and 3) assess how future land-use changes will affect ecosystem services. Each of these steps can be carried out with different levels of sophistication and detail. All steps involve a combination of science and process: the science provides information that is deliberated upon by stakeholders in public forums before conclusions are drawn. We then illustrate the approach by describing how it was used in two regions in the state of Illinois in the United States. In the first instance, an early application of this approach, a simple overlay was used to identify development pressure on an environmentally sensitive river bluff; this finding altered thinking about public policy choices. In the second instance, the more fine-grained analysis was conducted for several ecosystem services.

Sustainability, Vol. 1, Pages 335-345: Biofuels and the Lessons of Easter Island

Antonio R. Chaves — Mon, 20 Jul 2009 00:00:00 CEST

The return to land-based biofuels ignores the lessons of the past that led to the collapse of civilizations such as that of Easter Island. Even the more efficient ethanol feedstocks such as sugar cane and switchgrass can greatly worsen the environmental damage associated with agriculture because they would require enormous amounts of land to meet US demand for transportation fuel. Too often, style wins over substance because most citizens do not know the basics of well-to-wheel analysis. Therefore, the incorporation of energy literacy into the high school curricula should play a significant role in any comprehensive plan for addressing the energy crisis.

Sustainability, Vol. 1, Pages 319-334: Construction of an Environmentally Sustainable Development on a Modified Coastal Sand Mined and Landfill Site – Part 1. Planning and Implementation

Pamela Hazelton — Wed, 24 Jun 2009 00:00:00 CEST

The Magenta Shores development fronts 2.3 km of Tuggerah Beach on a formerly sand mined and landfill site in an urban growth area on the central coast of New South Wales. To increase the natural defences against storm waves and mass sand movements, the incipient foredune was retained and the parallel beach ridge landform was re-established by mimicking natural processes. Analysis of waste and resources led to a coordinated large-scale onsite re-use, recycling and waste management program that reduced landfill, transportation and natural resource requirements. Bitou bush removed from the Coastal Protection Zone was incorporated into golf course soils to improve grass growth. Leachate in the groundwater from the former landfill was diverted away from Tuggerah Lake and re-used in golf course irrigation. Upgrade of the local sewer treatment plant and installation of a public dual pipeline servicing Magenta and the adjoining township satisfied irrigation demands and provided non-potable water for the existing and expanding urban community. The sustainability challenges of the project were met through clear identification of existing environmental risks, application of scientific research, integrated team management and stakeholders’ cooperation.

Sustainability, Vol. 1, Pages 302-318: A Methodological Proposal for Corporate Carbon Footprint and Its Application to a Wine-Producing Company in Galicia, Spain

Adolfo Carballo Penela — Tue, 16 Jun 2009 00:00:00 CEST

Corporate carbon footprint (CCFP) is one of the most widely used indicators to synthesise environmental impacts on a corporate scale. We present a methodological proposal for CCFP calculation on the basis of the “method composed of financial accounts” abbreviated as MC3, considering the Spanish version “metodo compuesto de las cuentas contables”. The main objective is to describe how this method and the main outputs obtained work. This latter task is fulfilled with a practical case study, where we estimate the carbon footprint of a wine-producing company for the year 2006. Results show the origin of impacts generated, providing this firm with disaggregated information on the contribution to its CCFP of each one of its activities and consumptions.