碳足迹
足迹
环境科学
碳纤维
环境保护
环境资源管理
环境工程
计算机科学
地理
温室气体
地质学
考古
算法
海洋学
复合数
作者
Keiichiro Kanemoto,Daniel Moran,Edgar G. Hertwich
标识
DOI:10.1021/acs.est.6b03227
摘要
Life cycle thinking asks companies and consumers to take responsibility for emissions along their entire supply chain. As the world economy becomes more complex it is increasingly difficult to connect consumers and other downstream users to the origins of their greenhouse gas (GHG) emissions. Given the important role of subnational entities-cities, states, and companies-in GHG abatement efforts, it would be advantageous to better link downstream users to facilities and regulators who control primary emissions. We present a new spatially explicit carbon footprint method for establishing such connections. We find that for most developed countries the carbon footprint has diluted and spread: for example, since 1970 the U.S. carbon footprint has grown 23% territorially, and 38% in consumption-based terms, but nearly 200% in spatial extent (i.e., the minimum area needed to contain 90% of emissions). The rapidly growing carbon footprints of China and India, however, do not show such a spatial expansion of their consumption footprints in spite of their increasing participation in the world economy. In their case, urbanization concentrates domestic pollution and this offsets the increasing importance of imports.
科研通智能强力驱动
Strongly Powered by AbleSci AI