Journal of Industrial Ecology最新文献

Biodiversity loss, driven by human activities, significantly affects the environment, human societies, and economies. Using the extended multi-regional input–output (EEMRIO) and life cycle assessment (LCA) techniques, we offer insights into how these methodologies can be used to inform financial decisions related to biodiversity focusing on two key aspects: biodiversity impacts and ecosystem service dependencies. Our method combines spatially explicit characterization factors from LC-IMPACT with the Global Resource Input-Output Assesment (GLORIA) database to estimate biodiversity impacts. As a case study we assess the biodiversity impact of the MSCI All Country World Index (MSCI ACWI)  which consist of about 3000 large- and mid-sized companies, from 23 developed and 24 emerging countries. The results demonstrate that most of the biodiversity impact is caused in the Americas, followed by Asia, despite its low representation in the index's country weight (6%). Europe shows the least impact. These results emphasize the need to account for global supply chain linkages as products sold in one country might have significant biodiversity impacts elsewhere due to sourcing of production inputs. Second, our results identify the main determinants of the index's impact: land use, followed by water stress and climate change. Although most of the impact is localized in few sectors, the distinct characteristics of these sectors require industry-specific mitigation approaches. Finally, double materiality results show both, the influence companies have on biodiversity and the reciprocal effects. Companies neglecting these impacts risk financial setbacks, making it a crucial concern for investors.

China has established a nationwide formal e-waste disassembly system based on the extended producer responsibility principle. However, the system mainly focuses on material recycling while excluding the reuse of used electrical and electronic equipment (used EEE) due to the complexity of flows and transactions during the reuse stage. Recently, emerging online platforms have played an increasingly crucial role in the value chain of reuse and recycling, significantly improving the visibility of flows in these activities. This paper aims to depict the spatial structure of the used EEE and e-waste flow networks using a multi-scale analysis framework. Using spatial analysis tools in complex network analysis, we characterize cross-city reuse flows in China. A clear regional pattern of a hierarchical reuse network of notable regional hubs in certain regions in China is revealed in this analysis. The role of regulation is demonstrated in the comparison of the spatial flows in reuse and recycling. In conclusion, it is proposed that reuse should be included and emphasized in the management of waste electrical and electronic equipment in China to maximize the value of circularity.

The accumulation of waste in landfill is currently a challenge globally and in South Africa. The primary motivation of this research was to contribute to identifying and evaluating pathways for diverting plastic waste from landfill and advancing the plastics circular economy. This study assessed, for South Africa, key measures implemented by selected countries to promote recycling in order to divert waste from the landfill. The National Waste Management Strategy of 2020 for South Africa mandates successive waste reduction targets toward zero waste landfill by 2050. Material flow analysis (MFA) was extended from previous studies and used to map plastic flows over three successive intervals to assess progress made toward diversion of plastic waste from landfill. The percentage of plastic materials sent to landfill for South Africa were 74%, 78%, and 39% in 2017, 2019, and 2021, respectively. Potential pathways were identified as strategies for the South African to accelerate the reduction of plastic waste to landfill. These were modeled as single and as combined actions, through sensitivity analysis on the MFA-derived Sankey diagram and used to assess their impact on waste to landfill reduction. The scenario analysis highlighted improved waste collection and waste sorting as key measures and enablers that should be developed and a priority for reduction of plastic waste to landfill before the 2050 target year. The paper presents a new generic approach that combines MFA, Sankey diagrams, and scenario analysis to explore and evaluate solution spaces for transition to a circular economy.

The Chain Leader System (CLS) is a novel concept of industrial development proposed by the Chinese local government. Initially, it was aimed at chain extension, supplementation, and advancement to address the impact of external uncertainties. However, there has been debate about whether political power from CLS will lead to inefficiencies in green governance. This study aims to formalize industrial CLS for green governance. A survey was conducted to assess public acceptance and the validity of CLS in a resource-based city. The results indicate that CLS, when aligned with green governance goals, effectively corresponds with market rationality and public value. It is evident that CLS represents a collective effort toward effective governance rather than simply extending industrial chains or enhancing resilience. The efficiency of green governance within CLS is influenced by the factors including communication platform, enterprises' carbon sinks and green clustering, citizens' adoption of green transportation, and communication among different stakeholders. This study provides valuable insights for the governments seeking to establish an efficient CLS that aligns with both market principles and well-functioning government.

Rapid urbanization has resulted in significant bulk materials use, raising concerns over associated environmental impacts and sustainability challenges. However, a significant gap remains in the city-level analysis of bulk materials production, use, and associated environmental impacts in China. This study calculated the stocks and flows of 13 bulk materials and their associated greenhouse gas (GHG) emissions across nine cities in the Pearl River Delta urban agglomeration (PRDUA) of China during 2000–2020. Results showed that total and per-capita material stocks within the PRDUA experienced a continuous increase, with an average annual growth rate of 0.5 Gt/year and 4.4 t/cap/year, respectively. Both material stocks and flows exhibited similar spatial distribution patterns that gradually decreased from the center to the perimeter. As stocks continuously increase, GHG emissions from material production were rising annually, reaching 187.2 Mt CO₂e in 2020. While recycling end-of-life materials contributes to reducing GHG emissions, the current limited mass of recycling curtails its broader impacts. This situation highlights a significant untapped potential within the city to meet decarbonization goals. To maximize the carbon reduction benefits, it is essential to enhance recycling efforts. Moreover, it is crucial that recycling strategies are specifically tailored to suit the timing, location, and types of materials involved.