Search Results (22)

Extended producer responsibility (EPR) is intended to link producer design decisions to end-of-life costs, but collective EPR schemes typically weaken this link by routing funding through producer responsibility organisations. We develop a multi-level framework of consumer-integrated environmental protection (CIEP) and argue that individual producer responsibility (IPR), where producers bear product-specific end-of-life liability, can function as a governance mechanism that reconnects design, consumer behaviour and waste governance. This paper is a qualitative multiple-case research study—not a systematic review—which draws on three funded research projects: (i) small and medium-sized enterprise (SME) tools for design-for-recyclability, (ii) an artificial intelligence (AI) application for household waste sorting, and (iii) closed-loop recycling of fishing gear in Vietnam. Within the first project (ToCoReRaM), a PRISMA-based systematic review of web-accessible circular economy tools finds that only 2 of 23 tools are SME-accessible through standard web searches. The AI-based waste-sorting application achieves approximately 75% classification accuracy under real-world conditions. The fishing gear study demonstrates technical and economic viability of closed-loop recycling, and a survey of more than 1500 Vietnamese fishers finds 95.8% willingness to return used gear given appropriate incentives. Together, the cases show that effective circular governance requires four complementary elements: IPR-based producer accountability, SME-accessible design tools, digital consumer guidance at the point of disposal, and context-sensitive governance capacity. These findings inform policy pathways for Sustainable Development Goal (SDG) 12 and SDG 14. Full article

Background: Oral health during adolescence is a key determinant of long-term well-being and health equity. Despite widespread recognition of its importance, disparities in knowledge, motivation, and access to care persist. This study was conducted in Salt (Catalonia, Spain), a municipality with a population of approximately 33,000, characterized by a low average household disposable income (€12,512 per capita) and a high proportion of immigrant residents (37.76%). These sociodemographic characteristics may influence adolescents’ oral health behaviour, perceptions, and access to dental care. The study aimed to explore adolescents’ knowledge, habits, and attitudes towards oral health in this context, with barriers and protective factors, to inform community-based health promotion strategies. Methods: A qualitative descriptive study was conducted using focus group discussions with Spanish adolescents aged between 12 and 16, following ethical approval and informed consent from legal guardians. Data were systematically analysed using thematic analysis. Results: The adolescents had moderate oral health literacy, with basic knowledge of dental caries and prevention, but notable gaps in their knowledge regarding systemic consequences and complementary resources. Oral health behaviours and practices were shaped by social, economic, and normative influences, while parental involvement, community support, and school-based initiatives emerged as key assets for the promotion of oral health. Conclusions: While adolescents in Salt show awareness of oral hygiene, structural, motivational, and informational barriers limit comprehensive oral health practices. Interventions should move beyond knowledge-based education towards culturally adapted, participatory, and asset-based approaches to promote sustainable improvements in adolescent oral health. Full article

Food leftovers are a key component of household food waste. A nationwide survey of 1115 Polish adults conducted in 2019 examined how such leftovers are managed, considering socio-demographic and economic factors. It also explored the impact of selected food management practices on the throwing away of unconsumed meal leftovers. The data obtained indicated that one-quarter of the respondents always and usually use unconsumed meals to prepare other dishes. The following positions were taken by: giving to animals (23.68%), disposal in a waste container (15.97%), freezing (15.78%) and ex aequo giving to family or friends and composting (8.07%). Place of residence strongly influenced behaviours. Rural residents were much more likely than city dwellers to feed animals unused ready meals and compost them. On the other hand, city dwellers and young consumers more often stated that they would dispose of such products in a waste container. The constructed regression model indicated that only the frequency of purchasing ready-made chilled and frozen meals and the importance of storage conditions, in the respondents’ opinion, significantly impacted throwing away leftovers in a waste container. In summary, Polish respondents do not follow the food waste hierarchy. For this reason, it is important to develop and implement various educational programmes and campaigns. Full article

Against the backdrop of intensifying global climate change and advancing the goal of the “dual-carbon” strategy, the built environment is being viewed as a complex socio-technical system in which technological, economic, demographic and institutional subsystems are coupled and evolving at different scales. As a core node in this system, residential buildings not only carry infrastructural functions, but are also deeply embedded in energy flows, material cycles and behavioural structures, which have a significant impact on carbon emissions. Given the high volume of residential buildings in China and the significant differences between urban and rural construction, there is an urgent need to systematically identify and analyse the implicit carbon emissions during the materialisation phase. In this paper, from the perspective of systems engineering, we selected 30 urban and rural residential buildings in provinces and cities from 2005 to 2020 as the research objects, adopted the life cycle assessment (LCA) method to account for the implied carbon emissions in the materialisation stage, and systematically identified the driving factors of carbon emissions based on the Stochastic Impacts by Regression on Population, Affluence and Technology (STIRPAT) model. From this study, we made the following conclusions: (1) the total carbon emissions of residential buildings in urban and rural areas in China continue to rise during the materialisation stage, showing a spatial pattern of “high in the south-east and low in the north-west”, with a significant trend of structural transformation in urban and rural areas and with steel–concrete structures dominating in towns and cities, and bricks and steel being used in rural areas. (2) Resident population and disposable income are generally positive driving factors, while the influence of industrial structure and energy intensity is heterogeneous between urban and rural areas. For overall residential buildings, every 1% increase in resident population and income will lead to a 1.055% and 0.73% increase in carbon emissions, respectively. The study shows that life-cycle-oriented carbon accounting and the identification of multidimensional driving mechanisms are of great policy value in developing urban–rural differentiated emission reduction paths and enhancing the effectiveness of carbon management in the building sector. Full article

An increasing lack of raw materials, resource depletion, environmental impacts and other concerns have changed the way the population faces garbage disposal and municipalities implement waste management strategies. The aggravated global rise in municipal solid waste (MSW) generation has led to a new stage in full development, with objectives and targets set by the European Union regarding reducing the production of MSW. The targets also include the increasing selective collection, reuse, recycling and recovery (organic and energetic) of the waste produced. At the same time, the European Union has also set caps for the greenhouse gas emissions and for increasing the use of alternative renewable energy sources. In this context, one of the sources of renewable energy that is beginning to be used to produce electricity in our country is biogas. Finally, AD promotes the development of a circular economy. The present study introduces the formalism for a computer application that simulates the technical–economic behaviour of the short-term management of biogas for the conversion of electricity, and the mathematical model is formulated as a mathematical programming problem with constraints. A simulation for a case study of short-term management is given using the real landfill data available. The case study proves the ability of the LandGEM, despite some authors’ support that the Tabasaran–Rettenberger model provided a more reliable estimate, especially when compared to actual landfill data. The present paper is a contribution to the optimisation of the management of electricity from the use of biogas, namely the second phase of the Strategic Plan for Urban Waste. In addition to complying with the legislation in force, the use of biogas to produce electricity is an added value for the concessionaires of waste treatment and final destination units, as this alternative energy source can provide not only self-sufficiency in electricity for these units but also the export of surplus energy to the National Electricity Grid, thus contributing to the self-sustaining management and energy flexibility that is intended for these infrastructures. Full article

With rapid global economic growth and a rise in disposable household income, particularly within a progressively warming planet, the escalating demand for energy to achieve thermal comfort has become a salient concern in the Global South, notably in emerging economies like India. This burgeoning need for cooling solutions has not only underscored the vital role of energy consumption but has also accentuated the imperative of comprehending the ensuing implications for electricity policy and strategic planning, particularly within the ambit of the Global South. This study explored the nuanced landscape of active cooling within an intentional community, Auroville, in southern India, aiming to discern the factors underpinning household preferences and practices in the pursuit of thermal comfort. Employing a mixed-methods approach, this study contributed empirically and methodologically to the interdisciplinary discourse by analysing residential electricity consumption patterns and cooling practices within selected households in the specified community. The study unfolded in three methodological stages: firstly, an analysis of climatic data coupled with an environmental stress index (ESI) assessment; secondly, the monitoring of end-user electricity consumption followed by rigorous data analysis; and lastly, the utilisation of qualitative in-depth interviews and observational techniques. This study’s outcome yielded empirical insights into the unprecedented shifts in the ESI for Auroville since 2014. Furthermore, the study unravelled the intricate complexities inherent in occupant behaviour within residential structures, thereby offering valuable insights into the practices that shape householders’ cooling preferences. This research enriched the understanding of the dynamics of energy consumption in the pursuit of thermal comfort and contributes to the broader discourse on sustainable development and energy policy in the context of climate change. Full article

This study evaluates the current collection and recycling of Waste Electrical and Electronic Equipment (WEEE) in Italy by means of the analysis of national and regional data from EUROSTAT and the Italian WEEE Coordination Centre database, as well as through qualitative interviews with key stakeholders of the WEEE management system of the Campania region (Southern Italy). Urban systems, among which the metropolitan city of Naples in the Campania region, are the main users of Electrical and Electronic Equipment (EEE) and, as a consequence, the main generators of WEEE, which must be managed and recovered properly in order to prevent the loss of valuable resources and the associated environmental impacts. In addition to analysing the current state of WEEE collection and recycling in Italy and its regions and urban systems, the study aims to improve our understanding of the WEEE reverse supply chain and the main barriers and drivers to collection and recycling. The results reveal that the main barriers to the collection/delivery/recycling of WEEE resulted in the low awareness of the citizens about the importance of WEEE recovery, the lack of trust towards administrators, the lack of certified first treatment plants, the aversion of the citizens to the opening of new plants due to past inefficient solutions in solid waste management, the exploitation of high value materials only (so-called “cannibalization”, the illegal trade of WEEE, the influence of the market on the valorization of secondary materials), and, finally, the dominance of economic efficiency over the proximity advantage for the disposal of solid waste. On the other hand, the main drivers for collection emerged to be the adoption of education programmes in schools and constant communication campaigns directed to citizens in order to improve WEEE collection and recycling behaviour; the adoption of economic and non-economic incentives; the availability of municipal collection points (ecological islands) and other collection centres characterised by easy access by citizens for the delivery of their WEEE. Full article

Through fiscal policy, the government can influence businesses and individuals in order to regulate their behaviour. The research used panel data from all 27 EU countries covering the period 2008–2020 to investigate the impact of direct taxation on economic growth at the level of two main clusters of countries concerning fiscal efficiency. Therefore, the analysis employed cluster methods to classify the main EU countries in both groups of countries with a high level of fiscal efficiency and those with a rather limited level of fiscal efficiency. The study employs fixed effect models and dynamic GMM methods to investigate the effect of direct taxation components (personal and corporate income taxes) on economic growth. The analysis also considers the informal economy’s role in relation to the official economy. The empirical results revealed that corporate income taxes significantly negatively impact economic growth for both clusters of high- and limited fiscal efficiency countries. Additionally, personal income tax was associated with lower economic growth for countries in the limited fiscal efficiency group. Thus, from the perspective of policymakers, lowering direct taxation can increase disposable income, stimulate consumption and economic growth, encourage investment leading to job creation, increase competitiveness, and reduce tax evasion and avoidance, thereby leading to a more efficient tax system. Full article

This paper aims to analyze organisations’ behaviour in the Industrial Symbiosis implementation process in the Circular Economy Pilot Project, in Brazil from the actors’ perception. We conducted an exploratory and descriptive study with a qualitative approach to attain the research objective. The data collection involved in depth interviews with eighteen actors. Data were analyzed using the Content Analysis technique. The study results in show a still incipient industrial symbiosis network, with few connections between industrial actors, based on bilateral exchanges of materials, water and energy. From the analysis, it was possible to identify the elements that influence the behaviour of organisations. When it comes to exogenous elements, it is clear that laws and sanctions are the ones that most determine organisational action. However, this pressure is still focused on the traditional and unidirectional model of production processes. Economic viability was identified as a primary factor for the objective elements of organisational action. Regarding the subjective elements, it was found that there was already an interaction before the project between some companies, especially those from automotive sector. With the project’s initiative, this social interaction was intensified, including between companies from different sectors. Regarding the barriers, we found the absence of governmental actions, unavailability of time and involvement of the managers to fully participate in the project, high cost of waste disposal versus the cost of investment and, discontinuity of actions. Overall, the study indicates that the project increased the institutional capacity of the region to develop industrial symbiosis, as it advanced in sharing new knowledge, promoted more significant interaction between organisations and identified business opportunities for companies. However, it appears that the project’s continuity will be conditioned to improve some aspects of the governance structure, regulatory framework and collective engagement. These results can be helpful for researchers studying this topic and managers in Brazil and other emerging countries in Latin America, as well as, policymakers involved in public policies aimed to enable the transition to a circular e more sustainable model. Full article

Mining industries around the world produce massive amounts of solid waste that has potential environmental impacts. Therefore, it is necessary to explore alternative solutions to this waste disposal problem and to obtain economic benefits from it. Up to now, no significant attempts have been made to use granite dust (GD) as a soil stabilizer. GD is a by-product produced in large amounts during the cutting and processing of granite rocks at manufacturing factories. Thus, an attempt has been made here to define the role of GD in enhancing the geotechnical behaviour of expansive soil in order to make it suitable for construction. Moreover, the aim of this study is to evaluate the micro-level alterations occurring in the soil to elucidate the stabilization mechanism of granite dust–soil interaction. Comprehensive geotechnical tests, such as Atterberg limits, compaction characteristics, unconfined compressive strength (UCS), California bearing ratio (CBR), and swelling percentage, as well as microstructural analysis, such as X-ray diffraction, scanning electron microscopy, energy, and Fourier transform infrared, have been performed on natural and stabilized expansive soils using different portions of GD ranges from 0% to 30% with an increment of 5%. The results showed that the GD can be effectively used to improve soil plasticity and to control the swelling behaviour. Additionally, the results indicated that both UCS and CBR increase with increasing the content of GD, and that this increase reaches the maximum value at 20% of GD, after which it decreases. Hence, this amount can be taken as the optimum value of GD. The micro-analyses confirmed that the apparent formation of some new peaks, changes in the soil morphology, and alterations in the parent elements are the major factors in controlling the interactive behaviour of soil-GD mixes. Full article

The fast fashion market is becoming popular, escalating and aggravating the throwaway culture phenomenon. Thus, it is valuable to understand the factors that influence sustainable fashion consumption and the clothing disposal pattern among young consumers in developing countries like Malaysia. Data were obtained from the online survey of 324 young adults aged 18 to 35 and were analysed using the Partial Least Square using SmartPLS (v.3.3.3i). The findings indicate that personal norms, social norms and environmental awareness were the key influencing factors of sustainable fashion consumption. Consequently, sustainable fashion consumption exhibited a positive and significant relationship towards philanthropic and economic reasons for clothing disposal behaviour. The insights from this study will assist practitioners, green manufacturers, business owners and policy makers in giving a clearer picture of what motivates sustainable fashion consumption and the clothing disposal behaviour of today’s young adults. Full article

The revalorization of food processing by-products not only reduces the environmental impact of their disposal, but also generates added economic value. Cava lees consist of inactive cells of Saccharomyces cerevisiae, and though regarded as a valueless winery by-product, they are rich in fiber and phenolic compounds. In this study, a challenge test was performed to assess the effect of cava lees and a phenolic extract (LPE) derived therefrom on the behaviour of technological microbiota (lactic acid bacteria used as a starter culture) and the foodborne pathogens Salmonella spp. and Listeria monocytogenes during the fermentation and ripening of pork sausages. Ten batches of fermented sausages were prepared with and without cava lees or the LPE, and with or without different strains of Latilactobacillus sakei (CTC494 or BAP110). The addition of cava lees reduced the pH values of the meat batter throughout the fermentation and ripening process. No growth-promoting effect on spontaneous lactic acid bacteria (LAB) or the starter culture was observed. In contrast, the presence of cava lees prevented the growth of the tested pathogens (Salmonella and L. monocytogenes), as did the starter culture, resulting in significantly lower counts compared to the control batch. In addition, the combination of cava lees with L. sakei CTC494 had a bactericidal effect on Salmonella. LPE supplementation did not affect the pH values or LAB counts but reduced the mean counts of Salmonella, which were 0.71 log₁₀ lower than the control values at the end of the ripening. The LPE did not exert any additional effect to that of the starters applied alone. The revalorization of cava lees as a natural ingredient to improve the microbiological safety of fermented sausages is a feasible strategy that would promote a circular economy and benefit the environment. Full article

Safeguarding the environment and its citizens’ health remains one of the key policy priorities of the governments of many developing and emerging countries. Using the 2017 General Household Survey (GHS) dataset, this study examines the driving factors affecting households’ recycling behaviour and payment for waste disposal in South Africa. The methods of data analysis were based on descriptive statistics and a Bivariate Probit regression model. The descriptive statistics results indicate that there are 56.29% male-headed and 43.71% female headed households, with an average age of 49 years. In addition, the study shows that 89.97% of household heads had formal education with a mean monthly income of 11,099.07 ZAR/650.504 USD. The study also revealed that 22% of the households sampled had access to social grants. The results from the Bivariate Probit regression model show that household’s income, access to social grants, formal educational attainment and the age of the household were significant (p < 0.01) driving factors affecting households’ recycling behaviour and payment for waste disposal. The study concludes that the households’ socio-economic factors affect their recycling behaviour and willingness to pay for waste management in South Africa. Actions targeted at poverty alleviation and environmental sensitization programmes are key for facilitating environmental conservation behaviours of households in South Africa in order to achieve the environmental sustainability Sustainable Development Goal (SDG) target of the United Nations. Full article

The growth of eating lunch purchased out of the home has led to an increased need for pre-packaged food-to-go products. Single-use plastic packaging is frequently chosen for its food safety and convenience attributes; however, the material format is under scrutiny due to concerns over economic waste and environmental impact. A circular economy could transform linear make-use-dispose supply chains into circular systems, ensuring the cycling of valuable plastic resources. However, there has been limited research into how consumers will behave within circular economic systems. Understanding consumer behaviour with packaging disposed out of the home could aid designers in developing solutions society will adopt in the transition to a circular economy. This study evaluates the application of behaviour research methods, and the behavioural insight outputs, with stakeholders from the UK food-to-go packaging supply chain. A novel co-design workshop and business origami technique allowed multiple stakeholder groups to collaboratively discuss, evaluate, and plan how consumer behaviour techniques could be used within their supply chain packaging development process. Although all stakeholders identified strengths in incorporating behaviour studies into the development process, providing essential knowledge feedback loops, barriers to their application include the cost and time to implement, plus the existing inconsistent UK waste infrastructure. Full article

(1) If policy-makers and businesses are to encourage consumers to participate in circular consumption systems, knowledge is needed about what motivates consumers to choose different disposal options. This paper aims to shed light on what motivates consumers to engage in circular home textile disposal practices. (2) Quantitative data was collected through a survey of members of the IKEA Family programme (N = 238), and logistic regressions were carried out to complement the quantitative analysis. Qualitative data was collected in semi-structured interviews with a total of 24 Swedish consumers. (3) Our findings show that donating and discarding are the most common options for handling home textiles, followed by reusing/storing, repairing, and reselling. Regression results indicate that environmental concerns, convenience, and economic reasons are the dominant motivations in choosing a disposal option. Prosocial behaviour and normative issues play a lesser role. (4) We recommend that policy-makers and businesses work to increase convenience of consumers’ participation in circular product practices, and continually communicate environmental benefits of circular disposal options. Businesses and policy-makers aiming to make circular consumption more attractive also need to ensure economic benefits for consumers. Full article