Articles | Volume 16, issue 5
https://doi.org/10.5194/acp-16-3099-2016
https://doi.org/10.5194/acp-16-3099-2016
Research article
 | 
09 Mar 2016
Research article |  | 09 Mar 2016

Atmospheric methane evolution the last 40 years

Stig B. Dalsøren, Cathrine L. Myhre, Gunnar Myhre, Angel J. Gomez-Pelaez, Ole A. Søvde, Ivar S. A. Isaksen, Ray F. Weiss, and Christina M. Harth

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AR by S.B. Dalsøren on behalf of the Authors (24 Feb 2016)  Author's response   Manuscript 
ED: Publish as is (26 Feb 2016) by Patrick Jöckel
AR by S.B. Dalsøren on behalf of the Authors (29 Feb 2016)
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Short summary
Methane is a key greenhouse gas. Observations at surface sites show a more than 10 % increase over the period 1984–2012. Using an atmospheric model we calculate a growth in the atmospheric chemical methane loss the last decades. Without this, the rise in atmospheric methane would have been even higher. The model reproduces trends and short-term variations in observation data. However, some discrepancies in model performance question the accuracy in estimates of emission increases in Asia.
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