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Leveraging opportunity of low carbon transition by super-emitter cities in China

Urheber*innen

Zheng,  Heran
External Organizations;

Zhang,  Zengkai
External Organizations;

Dietzenbacher,  Erik
External Organizations;

Zhou,  Ya
External Organizations;

/persons/resource/Johannes.Toebben

Többen,  Johannes
Potsdam Institute for Climate Impact Research;

Feng,  Kuishuang
External Organizations;

Moran,  Daniel
External Organizations;

Jiang,  Meng
External Organizations;

Shan,  Yuli
External Organizations;

Wang,  Daoping
External Organizations;

Liu,  Xiaoyu
External Organizations;

Li,  Li
External Organizations;

Zhao,  Dandan
External Organizations;

Meng,  Jing
External Organizations;

Ou,  Jiamin
External Organizations;

Guan,  Dabo
External Organizations;

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29375oa.pdf
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Zitation

Zheng, H., Zhang, Z., Dietzenbacher, E., Zhou, Y., Többen, J., Feng, K., Moran, D., Jiang, M., Shan, Y., Wang, D., Liu, X., Li, L., Zhao, D., Meng, J., Ou, J., Guan, D. (2023): Leveraging opportunity of low carbon transition by super-emitter cities in China. - Science Bulletin, 68, 2456-2466.
https://doi.org/10.1016/j.scib.2023.08.016


Zitierlink: https://publications.pik-potsdam.de/pubman/item/item_29375
Zusammenfassung
Chinese cities are core in the national carbon mitigation and largely affect global decarbonisation initiatives, yet disparities between cities challenge country-wide progress. Low-carbon transition should preferably lead to a convergence of both equity and mitigation targets among cities. Inter-city supply chains that link the production and consumption of cities are a factor in shaping inequality and mitigation but less considered aggregately. Here, we modelled supply chains of 309 Chinese cities for 2012 to quantify carbon footprint inequality, as well as explored a leverage opportunity to achieve an inclusive low-carbon transition. We revealed significant carbon inequalities: the 10 richest cities in China have per capita carbon footprints comparable to the US level, while half of the Chinese cities sit below the global average. Inter-city supply chains in China, which are associated with 80% of carbon emissions, imply substantial carbon leakage risks and also contribute to socioeconomic disparities. However, the significant carbon inequality implies a leveraging opportunity that substantial mitigation can be achieved by 32 super-emitting cities. If the super-emitting cities adopt their differentiated mitigation pathway based on affluence, industrial structure, and role of supply chains, up to 1.4 Gt carbon quota can be created, raising 30% of the projected carbon quota to carbon peak. The additional carbon quota allows the average living standard of the other 60% of Chinese people to reach an upper-middle-income level, highlighting collaborative mechanism at the city level has a great potential to lead to a convergence of both equity and mitigation targets.