Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
Articles | Volume 22, issue 1
Articles | Volume 22, issue 1
Atmos. Chem. Phys., 22, 395–418, 2022
https://doi.org/10.5194/acp-22-395-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 22, 395–418, 2022
https://doi.org/10.5194/acp-22-395-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 1
Research article
12 Jan 2022
Research article | 12 Jan 2022

Methane emissions in the United States, Canada, and Mexico: evaluation of national methane emission inventories and 2010–2017 sectoral trends by inverse analysis of in situ (GLOBALVIEWplus CH4 ObsPack) and satellite (GOSAT) atmospheric observations

Xiao Lu et al.

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Latest update: 03 Feb 2023
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Short summary
We evaluate methane emissions and trends for 2010–2017 in the gridded national emission inventories for the United States, Canada, and Mexico by inversion of in situ and satellite methane observations. We find that anthropogenic methane emissions for all three countries are underestimated in the national inventories, largely driven by oil emissions. Anthropogenic methane emissions in the US peak in 2014, in contrast to the report of a steadily decreasing trend over 2010–2017 from the US EPA.
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