Identifying critical supply chain paths that drive changes in CO2 emissions
Identifying critical supply chain paths that drive changes in CO2 emissions
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DOI：
10.1016/j.eneco.2011.08.013
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发表时间：
2012-07
期刊：
影响因子：
12.8
通讯作者：
Yuko Oshita
中科院分区：
文献类型：
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作者：
Yuko Oshita
为了解决全球变暖的问题，重要的是要确定驱动生命周期二氧化碳排放变化的供应链路径，并为政策制定者和决策者提供有关关键路径的信息，以便有效地减少二氧化碳排放。在本文中，我使用结构路径分解（SPD）方法提取并分析了与1990年至2000年日本总需求相关的二氧化碳排放变化的因素和关键供应链，该方法适用于1990年至1995年至2000年的四位数商品分类水平的日本环境投入产出表。结果表明，由于服务业电力投入结构的变化，即“电力→娱乐娱乐设施→家庭需求”、“电力→零售业→家庭需求”和“电力→公共管理（地方）→地方政府需求”，导致了二氧化碳排放量的增加，表明服务业对能源投入的依赖程度越来越高。我还发现，最终的需求转变改变了二氧化碳的排放，例如，出口对集成电路需求的增加导致了电力产生的二氧化碳排放量的增加，家庭对冷冻鱼类和贝类需求的下降导致了海洋渔业二氧化碳排放量的减少。
To address the problem of global warming, it is important to identify the supply chain paths that drive changes in life cycle CO2emissions and provide both policy makers and decision makers with the information on the critical paths in order to efficiently reduce the CO2emissions. In this article, I extract and analyze the factors and key supply chains involved in changes in CO2emissions associated with Japan's overall demand from 1990 to 2000 using the Structural Path Decomposition (SPD) method applied to the 1990–1995–2000 linked Japanese environmental input–output tables at the four-digit commodity classification level. The results reveal that the volume of CO2emissions increased as a result of changes in the input structure of the electricity of the services sector, such as “electricity → amusement and recreation facilities → household demand”, “electricity → retail trade → household demand” and “electricity → public administration (local) → local government demand”, indicating increasing dependence of services on energy input. I also find that the final demand shift changed CO2emissions, for example the rise in demand for integrated circuits in exports has contributed to increasing CO2emissions generated from electricity, the fall in demand for frozen fish and shellfish in household demand has contributed to decreasing CO2emissions from marine fisheries.