Sustainability

The increasing role of individual investors in supporting the achievement of sustainable development goals through sustainable investment has gained growing interest from financial authorities and the research community. Digitalization in the financial sector, e.g., robo-advisors, enables lay-investors to make sustainable investments in a simple and convenient way. This study investigates whether investment-related attitudes and demographic profiles are related to robo-advisor clients’ sustainable investment choices. This paper describes an empirical study that uses a logistic regression model to investigate sustainable investment preferences at the individual investor level. Cross-sectional data consisting of 27,771 individual investors in Sweden, Norway, and Finland, who purchased investment products through a robo-advisor application, are used in this study. The results suggest that, concerning investment-related attitudes, robo-advisor clients with low-risk tolerance and a short investment horizon are more likely to choose to become sustainable investors. Furthermore, sustainable investments are preferred by robo-advisor clients who are less wealthy, female, and older. Full article

Gaining a sustainable environment in the manufacturing sector is dependent upon attracting top talent, providing extensive training, and embedding environmental consciousness throughout the company’s culture. Numerous cases of environmental contamination in the Nigerian manufacturing sector have led to serious health problems, confrontations with local residents, employee disengagement, decreased assurance, and organizational discontent. This study investigated green human resource management (GHRM) and corporate sustainability, focusing on manufacturing companies in Lagos State. Social identity theory was adopted for this research. The methodology used was quantitative research which made use of a questionnaire, and data were collected from 336 employees of various industrial enterprises in Lagos State, Nigeria. The findings of this research showed a significant effect between the antecedents of GHRM and corporate sustainability in the manufacturing industry. The study utilized regression analysis and demonstrated that organizations gain advantages by applying GHRM. Employees exposed to greening abilities and training reduce waste and reuse materials, enhance the firm’s image, attract and retain green customers, and reduce adverse environmental effects to better financial performance. This accomplishment benefits the company and allows employees to develop their own environmentally conscious orientation and projects. Full article

Compact cities, characterized by high density and accessibility with fully developed inner-city public transport, are widely discussed and practiced around the world in response to the challenges of sustainable development and global warming. On this basis, we are committed to answering the question of how cities with varying urban growth rates adopt different policy practices, and whether these practices contribute to achieving the goal of building a sustainable, low-carbon city. Specifically, this study assesses the theoretical evidence and practical experiences on the effect of compact city characteristics and policies on urban CO₂ emissions using a focused literature review and representative case studies. The results illustrate that public transportation is often strengthened in compact city policies and the density and spatial configuration of cities has a significant impact on urban carbon emissions. Moreover, there are significant differences within the impact mechanisms of compact cities on carbon emissions between small-medium-sized cities (dealing with aging populations and resource waste) and megacities (dealing with excessive urban sprawl). However, there is still insufficient quantitative evidence on the effectiveness of compact city policies and this review provides insights into future compact city planning toward policy approaches which yield lower carbon emissions. Full article

The study investigates if causal claims based on a theory-of-change approach for impact reporting are credible. The authors use their most recent impact report for a Social Bond to show how theory-based logic models can be used to map the sustainability claims of issuers to quantifiable indicators. A single project family (homeownership loans) is then used as a case study to test the underlying hypotheses of the sustainability claims. By applying Bayes Theorem, evidence for and against the claims is weighted to calculate the degree to which the belief in the claims is warranted. The authors found that only one out of three claims describe a probable cause–effect chain for social benefits from the loans. The other two claims either require more primary data to be corroborated or should be re-defined to link the intervention more closely and robustly with the overarching societal goals. However, all previous reported indicators are below the thresholds of the most conservative estimates for fractions of beneficiaries in the paper at hand. We conclude that the combination of a Theory-of-Change with a Bayesian Analysis is an effective way to test the plausibility of sustainability claims and to mitigate biases. Nevertheless, the method is—in the presented form—also too elaborate and time-consuming for impact reporting in the sustainable finance market. Full article

In the face of the cannibalization of remanufactured products produced by independent remanufacturers (IRs), original equipment manufacturers (OEMs) can produce remanufactured products themselves to compete with independent remanufacturers (IRs), or they can authorize the IRs to cooperate because of their seller reputation. This paper studies the key factors that influence OEMs’ choice of remanufacturing strategies. By establishing three two-stage models and comparing them, the thresholds for OEMs to choose different remanufacturing strategies were obtained. There is also an interesting finding that when the authorization fee is higher than a certain value, even if the remanufactured product poses a competitive threat to the new product, the OEM will help the IR improve their remanufacturing technology to save costs and achieve a win–win situation. With the increase in authorization fees, OEMs’ profits will increase first and then decrease, so it is not always better for OEMs to charge higher authorization fees. Whether it is an authorization or a competitive scenario, the improvement in remanufacturing technology by OEMs can increase the output of remanufactured products, which is conducive to environmental protection. Full article

This paper analyzed the impact of high-speed railway (HSR) construction on human capital and its mechanism by establishing high-speed railway-city level panel data from 2003 to 2019 and constructing a multiperiod difference- in-differences (DID) DID model in China. The results showed that HSR has significantly promoted the level of human capital in Beijing–Tianjin–Hebei urban agglomeration, Yangtze River Delta urban agglomeration, and Pearl River Delta urban agglomeration in China, with the overall effect value of 20.8%. The conclusion that HSR promotes the level of human capital is still valid through endogenous treatment of the instrumental variable method and robustness test. Further analysis showed that the impact of HSR construction on the level of human capital in urban agglomerations is mainly through the labor mobility and education investment potential, with the effect values of 3.65% and 4.44%, respectively. The findings of this paper highlight the importance of exploiting the external utility of HSR, improving the level of regional human capital, and promoting high-quality economic development of urban agglomerations. Full article

Corporate social responsibility and managerial commitment are both essential to long-term commercial success. In this study, corporate social responsibility (CSR) practices in Ethiopia’s coffee exporting enterprises are used as a mediating factor to assess the impact of management commitment on sustainable coffee export performance. This study used both quantitative and qualitative research methods and primary and secondary data sources obtained from the 236 sampled coffee exporting enterprises in Ethiopia. In addition, this study used a standardized questionnaire to collect data. To determine the causal link between management commitment, corporate social responsibility, and sustainable export performance, the obtained data were analyzed using PLS structural equation modeling version 3.2.8 and SPSS version 25. The outcome demonstrates that management commitment and corporate social responsibility have a favorable and considerable impact on companies’ performance in exporting sustainably grown coffee. Results also showed that the effect of management commitment on sustainable export performance was partially mediated by CSR. The survey also revealed that while most private enterprises have not yet begun CSR, certain coffee exporting companies, notably cooperative unions in Ethiopia, have integrated CSR practices into their operations to increase export performance. In order to help practitioners and decision-makers comprehend the advantages of management commitment and CSR in creating sustainable coffee export performance, this study offers strategic recommendations. In addition, the study has contributed to the existing literature. Full article

Taking a succession of severe carbon emission issues and surprisingly lower birth rates into account, this empirical research employed the social exchange theory (SET) and environmental, social and governance (ESG) sustainable development doctrine in the decisive processes of the decision theory (DT) in order to comprehensively and deeply discuss and evaluate the interplays and dependences among the contemporary environmental carbon emission issue (social facts—SET), the carbon emission reduction public identity (social behavior—SET) and the higher education sustainable governance (social definition—SET). Beyond a succession of complex assessments, the most contributive and empirical benefits were (1) the registering decision-making of a higher education student was directly influenced by the carbon emission reduction governance concurrence (CERGC) of the carbon emission reduction energy recycling facilities (CERERFs) in higher education institutions; (2) the carbon emission reduction governance concurrence (CERGC) of the carbon emission reduction energy recycling facilities (CERERFs) was also indirectly advanced by offering a series of carbon emission reduction professional trainings (CERPTs), relative courses (CERRCs) and international certifications (CERICs) as well as precipitating an important part of the carbon emission reduction region–university collaboration (CERRUC) and alignment with non-profit organizations (CERANO). Hence, the higher education C-ESG sustainable development strategies are going to comprehensively establish a series of systematic carbon emission reduction professional trainings, relative courses, international certification mechanisms, region–university collaborations (CERRUCs) and alignments with non-profit organizations to concretely develop emission reduction energy recycling facilities (CERERFs) in order to increase student registrations to survive in this lower-birth-rate era. Full article

In recent years, the promotion of university spin-offs has become a measure adopted by many European universities to facilitate the commercialization of new technologies and knowledge that can lead to more sustainable economies and societies. However, the effectiveness of university-based companies has also been questioned, as many of them are resource-constrained, remain small in size and struggle to consolidate once they leave the university context. This paper addresses two main research questions: what are the critical factors inhibiting the consolidation, performance, and sustainable development of university spin-offs at a mid-range European university, and which critical factors need to be addressed the most thoroughly by the university’s support programs in order to improve their efficiency? To answer these questions, we collected relevant information from a panel of experts and interviewed academic entrepreneurs from a public university in the South of Spain. The analytic hierarchy process was applied to identify and prioritize the critical factors and sub-factors encountered by the university-based companies. The results show that poor management is the biggest critical factor in the consolidation of the spin-offs. One implication, the findings of our study reveal, is the need for university administrators to improve support for university spin-offs in terms of managing the new business as opposed to prioritizing the difficulties associated with the launch. Another is the need to raise awareness among faculties of the importance of finding an appropriate balance between technical and managerial skills in order to improve the chances of entrepreneurial success. Full article

Struvite and hydroxyapatite are byproducts of phosphorus removal from wastewater that can be used as phosphate fertilizers. Due to their low water solubility, especially in alkaline soils, their use is currently limited. The use of phosphate-solubilizing bacteria to enhance the dissolution of struvite and hydroxyapatite could be an attractive solution for expanding their use, but literature reports on this are limited. In this study, Arthrobacter sp. (TBRC 5201), Azotobacter vinelandii (TBRC 7231), and Bacillus megaterium (TBRC 1396) were evaluated for their ability to dissolve struvite and hydroxyapatite on agar media with struvite or hydroxyapatite as the sole source of phosphorus. Only B. megaterium (TBRC 1396) was able to use struvite and hydroxyapatite for growth. After 14 d of incubation in liquid medium, B. megaterium (TBRC 1396) dissolved phosphorus from struvite up to 835.45 ± 11.76 mg P/l compared with 196.08 ± 3.92 mg P/l in a control without cells, whereas the dissolution of hydroxyapatite by B. megaterium was minimal. B. megaterium (TBRC 1396) was also capable of dissolving phosphorus from swine wastewater-derived struvite. Both free cells and alginate-encapsulated cells of B. megaterium (TBRC 1396) were able to rapidly dissolve phosphorus from swine wastewater-derived struvite, resulting in soluble phosphorus concentrations that reached 400 mg P/l within 2 days, compared with those without cells that required 12 days. In conclusion, the application of struvite with phosphate-solubilizing bacteria is a promising tool for green sustainable agriculture. Full article

In an industrial energy scenario increasingly focused on decarbonization and energy cost containment, waste heat is a resource that is no longer negligible. Despite the great abundance of waste heat, its recognized potential, and numerous technologies available for its use, the rate of waste heat recovery (WHR) is still low, especially at low temperatures (<230 °C). Non-technological barriers, such as the lack of knowledge and support tools, strongly limit the diffusion of WHR technologies. The work presented in this paper aims to overcome non-technological gaps by developing a simple and operational tool that can support companies in the preliminary stages of evaluating a WHR application. The methodology followed involved the development of specific data-based models for WHR technology sizing by correlating waste heat input characteristics with dimensional and economic parameters of the technologies evaluated. We considered the most representative technologies in the WHR scenario: organic Rankine cycles for electric power generation, heat pumps for thermal power generation, absorption chillers for cooling generation, and plate heat exchangers for low-temperature heat exchange applications. One of the significant strengths of the tool is that it was developed using real and hard-to-find technologies performance and cost data mainly collected through continuous interactions with WHR technology providers. Moreover, the interaction with the technology providers allowed contextualization and validation of the tool in the field. In addition, the tool was applied to three large companies operating in the Italian industrial sector to test its effectiveness. The tool applications made it possible to propose cost-effective solutions that the companies had not considered before, despite the high level of attention with which they were already approaching energy efficiency improvements. The result obtained demonstrates the applicability and innovativeness of the tool. Full article

The pandemic of COVID-19 disease has brought many challenges in the field of personal protective equipment. The amount of disposable surgical masks (DSMs) consumed increased dramatically, and much of it was improperly disposed of, i.e., it entered the environment. For this reason, it is crucial to accurately analyze the waste and identify all the hazards it poses. Therefore, in the present work, a DSM was disassembled, and gravimetric analysis of representative DSM waste was performed, along with detailed infrared spectroscopy of the individual parts and in-depth analysis of the waste. Due to the potential water contamination by micro/nanoplastics and also by other harmful components of DSMs generated during the leaching and photodegradation process, the xenon test and toxicity characteristic leaching procedure were used to analyze and evaluate the leaching of micro/nanoplastics. Micro/nanoplastic particles were leached from all five components of the mask in an aqueous medium. Exposed to natural conditions, a DSM loses up to 30% of its mass in just 1 month, while micro/nanoplastic particles are formed by the process of photodegradation. Improperly treated DSMs pose a potential hazardous risk to the environment due to the release of micro/nanoparticles and chloride ion content. Full article

Incomplete hydro-meteorological data and insufficient rainfall gauges have caused difficulties in establishing a reliable flood forecasting system. This study attempted to adopt the remotely sensed hydro-meteorological data as an alternative to the incomplete observed rainfall data in the poorly gauged Kuantan River Basin (KRB), the main city at the east coast of Peninsula Malaysia. Performance of Weather Research and Forecasting (WRF) schemes’ combinations, including eight microphysics (MP) and six cumulus, were evaluated to determine the most suitable combination of WRF MPCU in simulating rainfall over KRB. All the obtained results were validated against observed moderate to extreme rainfall events. Among all, the combination scheme Stony Brook University and Betts–Miller–Janjic (SBUBMJ) was found to be the most suitable to capture both spatial and temporal rainfall, with average percentage error of about ±17.5% to ±25.2% for heavy and moderate rainfall. However, the estimated PE ranges of −58.1% to 68.2% resulted in uncertainty while simulating extreme rainfall events, requiring more simulation tests for the schemes’ combinations using different boundary layer conditions and domain configurations. Findings also indicate that for the region where hydro-meteorological data are limited, WRF, as an alternative approach, can be used to achieve more sustainable water resource management and reliable hydrological forecasting. Full article

Most research states that implementing environmental, social, and governance (ESG) has positive impacts. However, fewer studies have discussed ESG implementation in higher education. This study aimed to develop instruments to assess the ESG atmosphere in higher education institutions. A modified Delphi approach was employed. Experts were invited from a private higher education institution in Indonesia. A deductive study, discussion, and two stages of getting consensus from panelists were conducted. The instrument was distinguished into four types for four groups of higher education stakeholders: Students, Staff, Faculty Members, and Community Members. The I-CVIs ranged from 0.80–1.00, while the minimum values of S-CVI/Ave and S-CVI/UA were 0.98 and 0.91, respectively, meaning the content validity was excellent. The final version instrument has been tested and declared valid, reliable, and ready to be used for empirical research for universities to assess their contribution to the Sustainability Development Goals (SDGs). There are also opportunities to conduct further research on the existence of recursive and non-recursive models between factors. Full article

In parallel with the developments in the yachting sector, the need for qualified yacht masters has increased. Their qualifications are important not only for meeting customers’ demands but also for ensuring maritime safety. In this direction, they play an important role in the sustainability of the sector. However, unlike other seafarers, there is a wide variation in the certification categories and training of countries due to the lack of a worldwide standard. Therefore, the equivalence of qualifications between different countries is indeed a confusing problem. It is especially important to identify similarities for the sake of harmonization and standardization efforts. In this regard, this study aims to analyze the similarities of qualifications for operating commercial yachts. First, licenses that are similar to each other in terms of a category are identified based on proficiency, distance limitations, and vessel sizes. Then, the similarity of their training is detected based on given courses. Towards this aim, a methodology based on hierarchical clustering methods is used. As a result, the levels of similarity between licenses, including internationally recognized licenses, are discussed to reveal the current situation. In addition, a classification method is proposed for standardization of the yacht license categories. Full article

From 1990 to 2019, Vietnam entered a period of economic growth, attracting foreign investment. However, during this period, CO₂ emissions also increased significantly. This paper will examine the short- and long-term relations of Vietnam’s relationship among FDI, economic growth, and CO₂ emissions based on the data on CO₂, GDP, and FDI of Vietnam in 1990–2019. This article uses the VECM model to test the effect among variables. Research results identify an impact and causal correlation among CO₂ emissions and economic growth and foreign direct investment in Vietnam. Research results show a long-term relationship between CO₂ emissions, GDP, and FDI. The authors did not find a short-run relationship between the above variables. Assessing impacts of CO₂ emissions on economic growth and foreign direct investment will help policymakers make reasonable policies to balance the increase in foreign investment capital and economic growth and reduce CO₂ to achieve the commitment in COP26. Full article

Background: Systematic management of innovation in the context of sustainable development based on ecological innovation is an essential part of the global market. Therefore, it will be guided by ecological innovations, which represent a means of sustainable development. The traditional approach to the evaluation of innovations focused mainly on economic results and failed to capture the ecological dimensions of sustainability from the theme of view of their consumers’ application. Therefore, the paper has the aim of evaluating the sustainability of ecological innovations from the perspective of customers in Slovakia, focusing on the elementary characteristics of sustainability through ecological innovations from the point of view of consumers. In the research, we focus on the parameters of ecological innovations connected with the sustainability of buildings and their operation—energy, health, comfort, materials, living processes and the quality of the place and equipment from the point of view of mobility. Methods: The primary study method is the Kano model. Conclusions: The results point to the fact that Slovak respondents are largely unaffected by ecological innovations, but they perceive the use of cars with an internal combustion engine as a mandatory requirement; innovations in thermal insulation, the use of natural and renewable materials and mass transport are attractive requirements for the respondents. Heating and use of recyclable materials are one-dimensional requirements. Full article

The Sustainable Development Goals (SDGs) cannot be achieved without quality education and the cultivation of innovative and international talents. This study examined high school students’ English learning motivation structure, the differences between male and female students, and the motivational impact on English learning achievement. Participants included 778 high school students (385 boys and 393 girls) from two Chinese high schools in two representative regions. The results showed that the English learning motivation of high school students mainly included four types, namely, intrinsic interest, learning situation, social responsibility, and personal development. Females’ English learning motivation was significantly higher than that of males. Further, intrinsic interest and personal development had a significantly positive impact on English achievement, whereas social responsibility had a significantly negative impact, and learning situation had no significant impact. The above findings contribute to further understanding of the internal structure of second language learning motivation and the influence mechanism of motivation on achievement, which are of great significance to students’ growth and the sustainable improvement in the quality of education. Full article

The global expansion of urbanization is posing associated environmental and socioeconomic challenges. The capital city of Ethiopia, Addis Ababa, is also facing similar threats. The development of urban green infrastructures (UGIs) are the forefront mechanisms in mitigating these global challenges. Nevertheless, UGIs in Addis Ababa are degrading and inaccessible to the city residents. Hence, a 56 km long Addis River Side Green Development Project is under development with a total investment of USD 1.253 billion funded by Chinese government aid. In phase one of this grand project, Friendship Square Park (FSP), was established in 2019 with a total cost of about USD 50 million. This paper was initiated to describe the establishment process of FSP and assess its social, economic, and environmental contributions to the city. The establishment process was described in close collaboration with the FSP contractor, China Communications Construction Company, Ltd. (CCCC). The land use changes of FSP’s development were determined by satellite images, while its environmental benefits were assessed through plant selection, planting design, and seedling survival rate. Open and/or close ended questionnaires were designed to assess the socioeconomic values of the park. The green space of the area has highly changed from 2002 (8.6%) to 2019 (56.1%) when the park was completed. More than 74,288 seedlings in 133 species of seedlings were planted in the park. The average survival rate of these seedlings was 93%. On average about 500 people visit the park per day, and 400,000 USD is generated, just from the entrance fee, per annum. Overall, 100% of the visitors were strongly satisfied with the current status of the park and recommended some additional features to be included in it. In general, the park is contributing to the environmental and socioeconomic values of the city residents, and this kind of park should be developed in other sub-cities of the city as well as regional cities of Ethiopia to increase the aesthetic, environmental and socioeconomic values of the country, at large. Full article