Global patterns of daily CO2 emissions reductions in the first year of COVID-19

Liu, Zhu, Deng, Zhu, Zhu, Biqing, Ciais, Philippe, Davis, Steven J., Tan, Jianguang, Andrew, Robbie M., Boucher, Olivier, Ben Arous, Simon, Canadell, Josep G., Dou, Xinyu, Friedlingstein, Pierre, Gentine, Pierre, Guo, Rui, Hong, Chaopeng, Jackson, Robert B., Kammen, Daniel M., Ke, Piyu, Le Quere, Corinne ORCID: https://orcid.org/0000-0003-2319-0452, Monica, Crippa, Janssens-Maenhout, Greet, Peters, Glen P., Tanaka, Katsumasa, Wang, Yilong, Zheng, Bo, Zhong, Haiwang, Sun, Taochun and Schellnhuber, Hans Joachim (2022) Global patterns of daily CO2 emissions reductions in the first year of COVID-19. Nature Geoscience, 15. 615–620. ISSN 1752-0894

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Abstract

Day-to-day changes in CO2 emissions from human activities, in particular fossil-fuel combustion and cement production, reflect a complex balance of influences from seasonality, working days, weather and, most recently, the COVID-19 pandemic. Here, we provide a daily CO2 emissions dataset for the whole year of 2020, calculated from inventory and near-real-time activity data. We find a global reduction of 6.3% (2,232 MtCO2) in CO2 emissions compared with 2019. The drop in daily emissions during the first part of the year resulted from reduced global economic activity due to the pandemic lockdowns, including a large decrease in emissions from the transportation sector. However, daily CO2 emissions gradually recovered towards 2019 levels from late April with the partial reopening of economic activity. Subsequent waves of lockdowns in late 2020 continued to cause smaller CO2 reductions, primarily in western countries. The extraordinary fall in emissions during 2020 is similar in magnitude to the sustained annual emissions reductions necessary to limit global warming at 1.5°C. This underscores the magnitude and speed at which the energy transition needs to advance.

Item Type: Article
Additional Information: Funding Information: Z.L. acknowledges the National Natural Science Foundation of China (grants 71874097, 41921005 and 72140002), Beijing Natural Science Foundation (JQ19032) and the Qiu Shi Science & Technologies Foundation. G.P.P. and R.M.A. received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreements no. 776810 (VERIFY), no. 820846 (PARIS REINFORCE) and no. 958927 (CoCO). C.L.Q. also received funding from VERIFY. P.F., R.M.A., G.P.P. received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreements no. 821003 (4C). J.G.C. acknowledges funding from the Australian National Environmental Science Program—Climate Systems. C.H. acknowledges support from the Scientific Research Start-up Funds (QD2021030C) from Tsinghua Shenzhen International Graduate School.
Uncontrolled Keywords: earth and planetary sciences(all),sdg 7 - affordable and clean energy ,/dk/atira/pure/subjectarea/asjc/1900
Faculty \ School: Faculty of Science > School of Environmental Sciences
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Depositing User: LivePure Connector
Date Deposited: 21 Jul 2022 16:30
Last Modified: 12 Aug 2022 06:44
URI: https://ueaeprints.uea.ac.uk/id/eprint/86799
DOI: 10.1038/s41561-022-00965-8

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