Outsourced carbon mitigation efforts of Chinese cities from 2012 to 2017

Chengqi Xia, Heran Zheng*, Jing Meng, Yuli Shan, Xi Liang, Jin Li, Zihua Yin, Minggu Chen, Pengfei Du, Can Wang

*Corresponding author for this work

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Abstract

Outsourced carbon mitigation between cities means that some cities benefit from the carbon mitigation efforts of other cities more than their own. This problem conceals the recognition of cities’ mitigation contributions. Here we quantify local and outsourced carbon mitigation levels from 2012 to 2017 and identified ‘outsourced mitigation beneficiaries’ relying on outsourced efforts more than their own among 309 Chinese cities by using a city-level input–output model. It found that the share of outsourced emissions rose from 78.6% to 81.9% during this period. In particular, 240 cities (77.7%) were outsourced mitigation beneficiaries, of which 65 were strong beneficiaries (their local carbon emissions still grew) and 175 cities were weak beneficiaries (with larger outsourced mitigation efforts than local mitigation efforts). Strong beneficiaries were often industrializing cities with more agriculture and light manufacturing, focusing on local economic growth. In contrast, weak beneficiaries were mainly at the downstream of supply chains with services and high-tech manufacturing, which have stronger connections with upstream heavy industry cities. The findings suggest the need for policies to manage outsourced mitigation of supply chains and encourage transformation, improving the fair acknowledgment of cities’ carbon mitigation efforts.
Original languageEnglish
Pages (from-to)480-488
Number of pages9
JournalNature Cities
Volume1
Issue number7
Early online date27 Jun 2024
DOIs
Publication statusPublished - Jul 2024

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