Cleaner Production Letters最新文献

The shift from a linear economy to a circular bioeconomy comes with many challenges in culture, behavior, business, technology and institutions, requiring transformative change. Circular initiatives are considered starting points for such a transformation as they demonstrate tangible alternatives to a linear, fossil-based economy. However, detailed insights into the progress of circular impact made by these initiatives have been lacking. Furthermore, conceptualizations of their development have primarily focused on upscaling, neglecting the diverse and dynamic development trajectories these initiatives might take in practice. The research aim of this paper was to better understand how circular initiatives contribute to transformative change. This study empirically explored three different development trajectories of circular initiatives; deepening (become more radical and circular), broadening (connecting with other domains and agendas) and spreading (becoming larger and more numerous). Based on interviews and desk research, 31 circular initiatives in the Netherlands were studied– in the domains of agriculture, biobased materials, marine research, and nature. The results revealed eight configurations, which are combinations of mechanisms that together guided initiatives’ development: deepening of initiatives was triggered by 1) focus and 2) reorganization: broadening was driven by 3) unusual collaboration, 4) aligning interests and 5) establishing a focus; and spreading occurred through 6) increasing capacity, 7) credibility and 8) offering perspective. These eight configurations provided in-depth insights into the diverse and dynamic development of circular initiatives. The configurations highlighted the significance of the interplay of mechanisms in studying the development of initiatives and in designing strategies to guide current and future circular initiatives.

Coordinated and cooperative efforts among international actors are necessary for climate policy effectiveness. From a macroeconomic perspective, the greater the synchronization of business cycles, the greater the potential for policy coordination and joint decision making. In light of the procyclical behaviour between the business cycle and the carbon emission cycle, this work tries to shed light on carbon emission fluctuations of sixteen major developed and developing economies during 1946–2021. In analogy with “classical” business cycle research, the analysis dates expansionary and contractionary phases, determines their durations and amplitudes. It also inspects emission synchronization between pairs and groups of countries in order to assess their degree of carbon integration. Carbon emission fluctuations are mostly an expansionary phenomenon. Compared to developed countries, developing countries feature on average longer cycles (i.e., a lower number of full cycles), less time spent in contraction, longer expansionary phases, shorter contractionary phases and larger absolute amplitudes. Pairwise carbon emission fluctuations are synchronized in 34.2% cases. Developed economies have their own common emission cycle. As for developing economies, results are heterogeneous. Only part of them, in fact, shows evidence of a common carbon emission cycle despite a relatively recent history of cooperation, heterogeneous geographical locations and socio-cultural features.

The responsible handling of e-waste has become a critical worldwide concern since, as it is essential for both environmental protection and human health because. This is because it prevents the release of harmful chemicals and reduces the ecological impact associated with the electronic waste disposal. Despite efforts the e-waste collection remains low due to a variety of reasons, including inadequate collection systems and socio-economic disparities. The present study aims to investigate the socioeconomic determinants affecting the level of e-waste in a sample of 27 EU countries for the period 2005–2020. The empirical analysis contributes to the existing literature by estimating the short- and long-term relationship between e-waste collection and corruption, income inequalities, imperfect gas market structures and labor market conditions. For this purpose, the study employs panel data techniques and cointegration analysis. The findings robustly suggest that countries with higher levels of socio-economic justice tend to exhibit higher e-waste collection levels, while the concentration of market share among a few dominant natural gas companies decreases collection levels. Low e-waste collection is also associated with concentrated income in the hands of a few individuals in both the short-and long-run. By advocating for equitable resource allocation and establishing a supportive environment, we can encourage increased levels of e-waste collection. Encouraging gas market entries and discouraging anti-competitive practices through regulatory frameworks is also crucial. Strategies to reduce wealth disparities and promote income equality involve implementing progressive taxation systems, redistributive policies, and inclusive economic development initiatives.

As industries move actively towards sustainable operations, communicating the value created as a result of implementing social sustainability practices is still a challenge for researchers and practitioners. Understanding the rationale behind the implementation of sustainability practices can improve adoption and communication amongst supply chain actors. This study aims to investigate the drivers of social sustainability practices in the European Leather Supply chain through the lens of the stakeholder and institutional theory. A qualitative approach is applied in which primary and secondary data are used to achieve the study's aim and objectives in the context of the European leather supply chain. Data was thematically analysed based on the key themes developed in the initial conceptual framework. The study's key findings show that internal and external drivers that serve as antecedents for implementing social sustainability practices can be general or specific, providing another paradigm to Sustainability driver studies. Internal drivers rather than external drivers were observed to clearly relate to and explain sustainability practices implemented. The results from the study show that the application of the intersection between Institutional Theory and Stakeholder Theory can assist in explaining the relationship between social sustainability drivers and practices. The study proposes a framework for managers that can assist leather brands in understanding and explaining the importance of implementing social sustainability practices to key stakeholders whilst actualising short- and long-term business goals.

Artisanal and small-scale gold mining is an important livelihood, but also the largest contributor to anthropogenic mercury emissions globally. Two key persistent challenges in reducing mercury use in artisanal and small-scale gold mining communities are effective educational interventions and accessibility to improved technologies. This study evaluates the efficacy of education and equipment distribution interventions to reduce mercury use in artisanal gold mining in Senegalese mining communities. We analyzed the effects of education and retort (mercury-capture devices) distribution through pre- and post-intervention surveys in nine Senegalese mining communities, divided into control, education-only, and education + retort distribution. Educational sessions were conducted in local languages using simple graphics by trusted community members. Retorts were constructed by local metalworkers using locally available materials. The combination of education and retort distribution increased knowledge about the efficacy of retorts and dangers of mercury (94% post-intervention). The combination also increased retort use, from 3% to 64% post-intervention. Retort use in the other two groups also marginally increased. The increased knowledge and retort use observed in control villages suggests a potential social overflow effect of the intervention, extending beyond the locations in which they occurred. Our results indicate that the graphics-based and community-oriented educational approach accompanied by increased access to retorts provides a strong foundation for reducing mercury emissions and exposure to artisanal and small-scale gold mining communities.

Introduction

Decision-makers' perceptions, influenced by institutional and organizational pressures, shape sustainability action. However, the current body of research on the impact of these pressures within the real estate sector, particularly among real estate owner organizations, remains limited.

Research argument

This explorative study fills the research gap by providing empirical findings and theoretical interpretation that explains the influence and outcomes of institutional pressures on decision-making processes.

Methodological approach

Explorative surveys and interviews were conducted with asset managers in Sweden to understand their sustainability perceptions and actions within the real estate sector.

Main findings

The study found a notable shift in sustainability perceptions among asset managers in Sweden, with most recognizing sustainability as critical for commercial real estate, challenging the notion of their passivity and highlighting their proactive engagement. Economic incentives significantly influence sustainability actions, with top priorities being energy efficiency and renewable energy due to their positive business impact. Other sustainability actions are also important but not prioritized to the same extent, revealing specific priorities within real estate owner organizations, an area less explored in prior research.

Conclusion

The article proposes a theoretical framework to guide future research on how institutional and organizational mechanisms shape decision-makers' sustainability perceptions, guiding sustainability action. Understanding these mechanisms is essential for implementing Sustainable Development Goals in practice across industries.

The disruption associated with heat decarbonisation has been identified as a key opportunity for hydrogen technologies in temperate countries and regions where established distribution infrastructure and familiarity with natural gas boilers predominate. A key element of such claims is the empirically untested belief that citizens will prefer to minimise disruption and perceive hydrogen to be less disruptive than the network upgrades and retrofit measures needed to support electric and other low carbon heating technologies. This article reports on exploratory deliberative research with residents of Cardiff, Wales which examined public perceptions of heating disruptions. Our findings suggest that concerns over public responses to disruption may be overstated, particularly as they relate to construction and road excavation for network upgrade. Disruptions arising from permanent changes to building fabric may be more problematic for heat pump retrofit, however these may be greatly overshadowed by anxieties over the cost implications of moving to hydrogen fuel. Furthermore, the biographical patterning of citizen preferences raises significant questions for hydrogen roll-out strategies relying on regionalised network conversion. We conclude by arguing that far from a non-disruptive alternative to electrification, hydrogen risks being seen as posing substantial disruptions to precarious household finances and lifestyles.

In the second half of the 20th century, the behaviour of the world's population has undergone drastic changes: it has grown very rapidly, become longer-lived and moved preferably to urban areas. Migration of populations to cities has a special focus because it not only generates socio-economic development, but also causes different economic, social, and environmental issues. How to assess the sustainable development of cities and identify the most representative aspects of sustainability dimensions has become an essential challenge for effective planning and government policies. However, the selection of indicators has scarcely been addressed when Data Envelopment Analysis (DEA) has been used for sustainability assessment. This paper aims to identify the key indicators to determine the eco-efficient performance towards a sustainable development of a set of cities. For this purpose, the joint use of a variable selection method and a DEA model is proposed and applied to a set of 31 Spanish cities. The results obtained identified five social (population percentage at risk of poverty, number of registered gender violence cases, population density), five economic (average household income, average rental price per m², gross domestic product per capita, public/private vehicle ratio, indebtedness), and three environmental (ozone, NO₂, PM₁₀) indicators for the assessment. Moreover, 14 Spanish cities were considered non-eco-efficient, and targets to achieve eco-efficient levels were proposed. Policy makers could focus primarily on the social and economic aspects of non-eco-efficient cities, paying attention, for example, to the risk of poverty of the population, indebtedness of local governments, average rental price and NO₂ emissions.

Cities concentrate a large amount of people and activities thus being responsible for large amounts of resources being consumed which generate significant impact footprints contributing to climate change both directly and indirectly. In the meantime, circular economy is seen a promising concept to improve resource efficiency. Circular economy strategies are an emerging and important paradigm that can have an important effect in reducing CO₂ emissions.

This study aims at evaluating how circular economy strategies can reduce CO₂ emissions in cities with different contexts to find similarities and differences between them. The studied cities are Beijing, Shanghai, Vienna, and Malmö.

A scenario analysis study is done for two scenarios: 1) Business-As-Usual scenario (BAU) and 2) Circular Economy scenario (CE) from year 2017–2050, using multi-regional input-output (MRIO) analysis. The most CO₂-intensive Exiobase sectors associated with downstream consumption in households and government were identified as CO₂ emission hotspots, and emission reduction targets were identified and applied to these sectors.

The main results from the study show that although Vienna and Malmö have applied sustainability strategies for quite some time, the results do not show that CE strategies work better in the European cities compared with Chinese cities. The results also suggest that the greatest potential and effectiveness in reducing consumption lies in the sectors of energy use and materials consumption for all cities. It can also be seen that CE scenarios have higher potential for CO₂ emissions reduction when compared to the BAU scenarios but the reduction level in Shanghai and Malmö is weaker compared to Vienna and Beijing, which indicates the effectiveness of current CE strategies in reducing Beijing and Vienna's emissions. It also suggests that for Shanghai and Malmö, more ambitious CE strategies should be considered. Finally, comparing the distribution of emissions among the four cities it can be seen that consumption of Beijing, Shanghai and Vienna relies highly on domestic production whilst Malmö is more dependent on international production.