Mapping flows of embodied emissions in the global production system.
Mapping flows of embodied emissions in the global production system.
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DOI：
10.1021/es202313e
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发表时间：
2011-11
影响因子：
11.4
通讯作者：
A. Skelton;D. Guan;G. Peters;D. Crawford‐Brown
中科院分区：
文献类型：
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作者：
A. Skelton;D. Guan;G. Peters;D. Crawford‐Brown
环境扩展多区域投入产出分析可用于调查排放的最终生产和消费归因。由于这两种属性之间的区别已引起决策者的注意，因此更有必要通过分析生产和消费活动之间的联系，了解它们如何以及为什么不同。为了满足这一需求，我们提出了一种方法，通过列昂惕夫生产系统映射流的体现排放。该方法被视为结构路径分析的延伸，提供了排放的最终生产和消费属性之间的供应链联系的详尽地图。虽然SPA传统上用于根据每个链末端发生的排放量提取和排列单个供应链，但映射方法考虑了连接沿着供应链不同经济部门的中间产品流所体现的排放量。说明性的结果，从全球MRIO模式和CO（2）的排放量为2004年。体现在一个部门的产品总产量的排放量也是感兴趣的：一种方法来计算这一点，并显示在生产系统中的一个部门的整体排放量的影响是集中提供进一步的洞察力。
Environmentally extended multiregional input-output (MRIO) analysis can be used to investigate final production and consumption attributions of emissions. As the distinction between the two attributions has been brought to the attention of policy-makers, there is an ever greater need to understand how and why they differ, by analyzing the connections between production and consumption activities. Seeking to meet this need, we present an approach for mapping flows of embodied emissions through a Leontief production system. The approach, seen as an extension of Structural Path Analysis (SPA), provides an exhaustive map of supply chain linkages between final production and consumption attributions of emissions. Whereas SPA is traditionally used to extract and rank individual supply chains according to the emissions occurring at the end of each chain, the mapping approach considers emissions embodied in the flows of intermediate products linking different economic sectors along supply chains. Illustrative results are presented from a global MRIO model and CO(2) emissions for 2004. The emissions embodied in a sector's total output of products is also of interest: a method for calculating this is presented and shown to provide further insight into where in the production system a sector's overall emissions impact is concentrated.