Shared responsibility for carbon emission reduction in worldwide “steel- electric vehicle” trade within a sustainable industrial chain perspective

IF 6.6 2区经济学 Q1 ECOLOGY

Ecological Economics Pub Date : 2024-09-22 DOI:10.1016/j.ecolecon.2024.108393

Yanxin Liu , Huajiao Li , Huijun Ren , Hongdian Jiang , Bo Ren , Ning Ma , Zhensong Chen , Weiqiong Zhong , Sergio Ulgiati

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Abstract

Electric vehicles (EVs) is an important industry to promote global sustainability, but it consumes a lot of steel which produce more carbon dioxide during the production. To clarify the shared responsibility of carbon reduction related to EVs in the countries, it is necessary to assess the material flows of steel associated to the industry chain. This study constructed a multi-layer trade network model of “steel-electric vehicle” industry chain and identified key trade carbon transfer paths. The results firstly show the worldwide trade volume and the number of involved countries increased enormously from 2017 to 2021. Secondly, the non-renewable energies (coal) were diverted more from upstream countries. Finally, the trade patterns mostly flow from upstream (Brazil, Australia) to midstream steel producers (China, Germany), and then to downstream EVs manufacturers (USA), from which trade flows go back to middle and upstream countries. Instead, trade embodied carbon flows mainly into downstream developed countries. It reflects the huge imbalance among production process of different stages, energy consumed structure and trade carbon emissions in the worldwide “steel-electric vehicle” industry chain. Based on the results, this study proposes policy implications for promoting regional industrial ecological sustainability from the perspectives of industry chain, trading partners and countries.

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从可持续产业链角度看全球 "钢铁-电动汽车 "贸易中的碳减排共同责任

电动汽车（EV）是促进全球可持续发展的重要产业，但它消耗大量钢铁，在生产过程中产生更多二氧化碳。为了明确各国在电动汽车相关碳减排方面的共同责任，有必要评估与产业链相关的钢铁物质流。本研究构建了 "钢铁-电动汽车 "产业链的多层贸易网络模型，并确定了关键贸易碳转移路径。研究结果首先表明，从 2017 年到 2021 年，全球贸易量和涉及国家数量大幅增加。其次，不可再生能源（煤炭）更多地从上游国家转移。最后，贸易模式主要是从上游（巴西、澳大利亚）流向中游钢铁生产商（中国、德国），再流向下游电动汽车制造商（美国），然后贸易流又回到中上游国家。相反，贸易体现碳主要流入下游发达国家。这反映了全球 "钢铁-电动汽车 "产业链中不同阶段的生产工艺、能耗结构和贸易碳排放之间的巨大不平衡。根据研究结果，本研究从产业链、贸易伙伴和国家的角度提出了促进区域产业生态可持续性的政策启示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ecological Economics 环境科学-环境科学

CiteScore

12.00

自引率

5.70%

发文量

313

审稿时长

6 months

期刊介绍： Ecological Economics is concerned with extending and integrating the understanding of the interfaces and interplay between "nature''s household" (ecosystems) and "humanity''s household" (the economy). Ecological economics is an interdisciplinary field defined by a set of concrete problems or challenges related to governing economic activity in a way that promotes human well-being, sustainability, and justice. The journal thus emphasizes critical work that draws on and integrates elements of ecological science, economics, and the analysis of values, behaviors, cultural practices, institutional structures, and societal dynamics. The journal is transdisciplinary in spirit and methodologically open, drawing on the insights offered by a variety of intellectual traditions, and appealing to a diverse readership. Specific research areas covered include: valuation of natural resources, sustainable agriculture and development, ecologically integrated technology, integrated ecologic-economic modelling at scales from local to regional to global, implications of thermodynamics for economics and ecology, renewable resource management and conservation, critical assessments of the basic assumptions underlying current economic and ecological paradigms and the implications of alternative assumptions, economic and ecological consequences of genetically engineered organisms, and gene pool inventory and management, alternative principles for valuing natural wealth, integrating natural resources and environmental services into national income and wealth accounts, methods of implementing efficient environmental policies, case studies of economic-ecologic conflict or harmony, etc. New issues in this area are rapidly emerging and will find a ready forum in Ecological Economics.