Satellite reveals a steep decline in China’s CO <sub>2</sub> emissions in early 2022-Reference-Cited by-同舟云学术

Satellite reveals a steep decline in China’s CO ₂ emissions in early 2022

Published:2023-07-21 Issue:29 Volume:9 Page:
ISSN:2375-2548
Container-title:Science Advances
language:en
Short-container-title:Sci. Adv.

Author:

Li Hui¹²^ORCID,Zheng Bo¹²^ORCID,Ciais Philippe¹³,Boersma K. Folkert⁴⁵^ORCID,Riess T. Christoph V. W.⁴^ORCID,Martin Randall V.⁶⁷^ORCID,Broquet Gregoire³^ORCID,van der A Ronald⁸^ORCID,Li Haiyan⁹^ORCID,Hong Chaopeng¹²,Lei Yu¹⁰^ORCID,Kong Yawen¹¹^ORCID,Zhang Qiang¹¹^ORCID,He Kebin²¹²^ORCID

Affiliation:

1. Shenzhen Key Laboratory of Ecological Remediation and Carbon Sequestration, Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.

2. State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China.

3. Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France.

4. Department of Meteorology and Air Quality, Wageningen University, Wageningen, Netherlands.

5. Climate Observations Department, Royal Netherlands Meteorological Institute, De Bilt, Netherlands.

6. Department of Energy, Environmental and Chemical Engineering, Washington University, St. Louis, MO, USA.

7. Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, Canada.

8. R&D Satellite Observations, Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands.

9. School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China.

10. Chinese Academy of Environmental Planning, Beijing 100012, China.

11. Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China.

12. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.

Abstract

Response actions to the coronavirus disease 2019 perturbed economies and carbon dioxide (CO 2 ) emissions. The Omicron variant that emerged in 2022 caused more substantial infections than in 2020 and 2021 but it has not yet been ascertained whether Omicron interrupted the temporary post-2021 rebound of CO 2 emissions. Here, using satellite nitrogen dioxide observations combined with atmospheric inversion, we show a larger decline in China’s CO 2 emissions between January and April 2022 than in those months during the first wave of 2020. China’s CO 2 emissions are estimated to have decreased by 15% (equivalent to −244.3 million metric tons of CO 2 ) during the 2022 lockdown, greater than the 9% reduction during the 2020 lockdown. Omicron affected most of the populated and industrial provinces in 2022, hindering China’s CO 2 emissions rebound starting from 2021. China’s emission variations agreed with downstream CO 2 concentration changes, indicating a potential to monitor CO 2 emissions by integrating satellite and ground measurements.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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