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  Physical and virtual carbon metabolism of global cities

Chen, S., Chen, B., Feng, K., Liu, Z., Fromer, N., Tan, X., Alsaedi, A., Hayat, T., Weisz, H., Schellnhuber, H. J., Hubacek, K. (2020): Physical and virtual carbon metabolism of global cities. - Nature Communications, 11, 182.
https://doi.org/10.1038/s41467-019-13757-3

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 Creators:
Chen, S.1, Author
Chen, B.1, Author
Feng, K.1, Author
Liu, Z.1, Author
Fromer, N.1, Author
Tan, X.1, Author
Alsaedi, A.1, Author
Hayat, T.1, Author
Weisz, Helga2, Author              
Schellnhuber, Hans Joachim2, Author              
Hubacek, K.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, ou_persistent13              

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 Abstract: Urban activities have profound and lasting effects on the global carbon balance. Here we develop a consistent metabolic approach that combines two complementary carbon accounts, the physical carbon balance and the fossil fuel-derived gaseous carbon footprint, to track carbon coming into, being added to urban stocks, and eventually leaving the city. We find that over 88% of the physical carbon in 16 global cities is imported from outside their urban boundaries, and this outsourcing of carbon is notably amplified by virtual emissions from upstream activities that contribute 33–68% to their total carbon inflows. While 13–33% of the carbon appropriated by cities is immediately combusted and released as CO2, between 8 and 24% is stored in durable household goods or becomes part of other urban stocks. Inventorying carbon consumed and stored for urban metabolism should be given more credit for the role it can play in stabilizing future global climate.

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 Dates: 2020-01-10
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41467-019-13757-3
PIKDOMAIN: FutureLab - Social Metabolism and Impacts
PIKDOMAIN: Director Emeritus / Executive Staff / Science & Society
eDoc: 8643
Research topic keyword: Cities
Research topic keyword: Energy
Regional keyword: Global
Regional keyword: Asia
Research topic keyword: Mitigation
Research topic keyword: Decarbonization  
Organisational keyword: Director Emeritus Schellnhuber
Organisational keyword: FutureLab - Social Metabolism and Impacts
 Degree: -

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Title: Nature Communications
Source Genre: Journal, SCI, Scopus, p3, oa
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Pages: - Volume / Issue: 11 Sequence Number: 182 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/journals354
Publisher: Nature