Search

Waste sorting in urban villages is a less developed while important issue in waste management and it is of great importance to environmental sustainability. China is now facing challenges of combating waste sorting while little attention has been paid to these challenges in urban villages. This article aims to add to this knowledge by examining how waste sorting has been implemented in urban villages via a case study of Shenzhen, China. A co-production theory perspective is adopted to explore how actors are engaged in the process of waste sorting and what are the results. The findings suggest coproduction approach is neither a top-down nor bottom-up approach. It is a much more complex process that involves intensive interactions between the government and residents. It concludes that the co-production approach to waste sorting exemplified by urban villages' sustainable development has great significance for general environmental management and policy making in the long term. [ABSTRACT FROM AUTHOR]

Semiconductor industry is experiencing a rising demand for environmentally friendly processes with the emphasis on green policies and worldwide environmental sustainability. Nitrogen trifluoride (NF3), the most common plasma chamber cleaning agent gas, poses a significant concern as a potent greenhouse gas since it has global warming potential (GWP), 740 times and 6 times higher than that CO2 and N2O. This study investigated the exhaust gas using quadrupole mass spectroscopy (QMS) and analyzed the change in cleaning speed and the type of exhaust gas through plasma monitoring using optical mass spectroscopy (OES). The objective is to lower the use of the amount of NF3 gas in chamber cleaning process to partially contribute the environmental sustainability in the point of semiconductor manufacturing. When a small amount of N2 was added to NF3 whose ratio of 7:23, the cleaning efficiency reached to 90% compared to NF3 gas alone. Addition of N2 positively affected electron density and temperature to increase the F-radical in remote plasma system. In conclusion, 18% of NF3 usage amount was reduced during the Sio2 deposition chamber cleaning process. [ABSTRACT FROM AUTHOR]

'Biodiversity offsetting' aims to address the residual negative environmental impacts of human development. It's goal is to achieve No Net Loss (NNL), and preferably a Net Gain of biodiversity attributes between development and offset sites. Biodiversity offsetting suffers from a lack of 'proof of concept', as little work has been done to critically test the ecological efficacy of offsetting practices. Offsetting of stream ecological functions was investigated in Aotearoa New Zealand, via review of regulatory documentation for 76 offsets and field assessments of 14 offset sites. Field results indicated some functions, including fish passage connectivity, respond rapidly post-offset enhancement whilst others exhibit recovery lags (such as fish spawning habitat provision). However, most offsets were considered unlikely to achieve NNL due to failures in practice and process. Factors included inadequate consideration for restoration uncertainty, inappropriate monitoring conditions, insufficient data and inequivalent trade-offs. Key linkages between aquatic and terrestrial ecosystems, particularly regarding floodplain connectivity, were poorly considered in offset implementation. Thus, development may be occurring based on inadequate regulatory processes, and poorly evaluated ecological outcomes. These findings join a growing body of evidence which indicates that, in the context of a global biodiversity crisis, offsetting is not achieving its purpose of NNL. [ABSTRACT FROM AUTHOR]

This article examines the changing role of the local government's environmental management in Guangzhou, China, through a historical content analysis of archival data. Environmental governance in Guangzhou has followed a government-led, top-down model. The content analysis showed that over the past four decades, the role of Guangzhou's municipal environmental governance has been characterized by transformation -- from passive responses to accelerating and securing economic growth, and finally to active interventions that balance economic growth and ecological protection. The changing role of the Guangzhou government in environmental governance is driven by varied urban political priorities at different historical stages. This article argues that the urban political economy and the national government's commitment to pragmatic, sustainable development shaped the local government's response to environmental problems. [ABSTRACT FROM AUTHOR]

Indirect ecological effects—in which interactions of two species are modified by another species or abiotic factor—are generally considered equal to or greater in magnitude than direct effects. The ecological literature describing indirect effects suffers from redundancy and confusion regarding terminology and quantification, limiting its utility to regulators working to estimate indirect relative to direct effects in assessing environmental risks of development. To evaluate consideration for indirect ecological effects in regulatory practice, we reviewed 24 National Environmental Policy Act (NEPA) documents for proposed US mining projects to compare the treatment of indirect effects in the regulatory versus ecological literature. A clear dichotomy between regulatory and academic definitions of indirect effects suggests that NEPA documents overlook scientifically defined ecological impacts of development. Consequently, for scientific inquiry to be useful to regulators and for regulation of development to comprehensively assess risks, multidisciplinary efforts are urgently needed to bridge the gap between ecological science and environmental management. [ABSTRACT FROM AUTHOR]

Objective: To analyze the development of environmental sustainability practices at the Federal University of Cariri from the perspective of the UI GreenMetric World University Ranking. Methodology: It is a case study with a mixed approach, of an applied and descriptive nature. The qualitative approach was applied with a survey of the official documents of the HEI related to sustainability and the realization of a focus group with members of the sustainability management coordination. The quantitative approach aimed to measure the institution's degree of sustainability by completing the UI GreenMetric questionnaire. Originality/Relevance: A detailed technical analysis is carried out on the institution's sustainable actions, identifying its weaknesses and potential in its sustainable management, contributing with reflections on the subject and proposing improvements to the practices currently developed. Main Results: It was evidenced that the HEI has already carried out and are in course several actions related to sustainability and that the theme has been strengthened in the organization. However, there is still no fully institutionalized environmental sustainability policy, which still lacks greater involvement on the part of the university's units and servers. Contributions: The main challenges to be overcome were identified, especially with regard to the involvement of the units and servers, as well as the systematization of information and the need for greater incentives for research in the area, and suggestions for improvements were made in order to offer the university alternatives to advance. in the institutionalization of the theme and in the adoption of good environmentally sustainable practices. [ABSTRACT FROM AUTHOR]

This article examines the documentary Resurrección (Eugenio Polgovksy, 2016), which deals with the catastrophic contamination of Jalisco's River Santiago by industrial waste. It discusses the slow violence of environmental poisoning in this region as a form of necropolitics and of wastelanding, and the campaign of collective Un Salto de Vida, who feature prominently in the film, for a clean river. It goes on to explore the heterogenous worlds and uncanny, sensorial aesthetics that characterise the film, arguing that through them, it makes a significant contribution to the search for visual forms through which to represent eco‐catastrophe, and the reconfigured relationship between human and non‐human required to address it. [ABSTRACT FROM AUTHOR]

Achieving the global decarbonization goal under global conflicts is becoming more uncertain. Within this context, this article seeks to examine the effects of global environmental management and efforts to achieve this goal. Specifically, it investigates the role of democracy, control of corruption, and civil society participation as mechanisms that moderate the impact of environmental policy and legislation, particularly clean energy policy and climate change legislation (laws and regulations), on carbon emissions in highly polluted countries. The empirical results show that (i) the effects of democracy-clean energy policies and climate change legislation are relatively small in reducing carbon emissions; (ii) the effect of controlling corruption-climate change regulations is strong in reducing emissions, meaning that governments with higher control of corruption are more effective at enacting and executing laws and regulations dealing with environmental challenges which help achieve desirable environmental outcomes; (iii) strong civil society participation helps the execution of clean energy policies and climate change legislation to curb emissions, and (iv) the robustness check also provides strong evidence that higher control of corruption can contribute to the effectiveness of these policies and legislation in reducing carbon emissions. Overall, these findings suggest that the efficiency of well-designed environmental policy and legislation should be supported by a combination of higher civil society participation and greater control of corruption that can efficiently enforce such policies and legislation. • We examine the role of climate policies and legislation (CPL) in meeting net-zero emission. • We focus on the moderating role of democracy, control of corruption, and civil society. • The interaction effects of democracy and CPL on reducing carbon emissions are relatively small. • Corruption control complements climate change regulations for reducing carbon emissions. • Strong civil society participation complements CPL for reducing carbon emissions. [ABSTRACT FROM AUTHOR]

This paper investigates the impact of the timing of adaptation on the stability of international environmental agreements (IEAs) for different levels of cooperation. This issue is addressed by solving a three-stage coalition formation game in a Nash-Cournot setting. In the first stage, countries decide non-cooperatively on their participation in an IEA. Then, depending on the timing, countries decide on adaptation and emissions in the second and third stage. The game is solved for three levels of cooperation. Countries can either cooperate on emissions (emission agreement), on adaptation (adaptation agreement), or both actions (complete agreement). When emissions are chosen first, this extension to an emission–adaptation game is a generalization of the pure emission game. However, when adaptation is chosen first, the grand coalition is stable, provided that countries sign a complete agreement. With partial cooperation, stable coalitions are small. The results establish a connection between the strategic role of adaptation, the levels of adaptation of non-signatories and signatories for the different types of agreements and the participation in an IEA. Moreover, the results indicate that the grand coalition is stable even when it significantly enhances net benefits. [ABSTRACT FROM AUTHOR]