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Brendan Jones (brendanjones@fosstodon.org)'s status on Sunday, 07-Jan-2024 03:33:13 JST Brendan Jones
in reply to
- Zack Labe
@ZLabe What’s the cause of the seasonal cycle?

In conversation about 11 months ago from fosstodon.org permalink
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  Zack Labe (zlabe@fediscience.org)'s status on Sunday, 07-Jan-2024 03:33:15 JST Zack Labe
  
  🚨 Methane (CH₄; potent greenhouse gas) reached a preliminary new record high value in September 2023 (1927.4 ppb).
  September 2022's global methane abundance was 1915.4 ppb.
  Note there is a seasonal cycle. Data available from https://esrl.noaa.gov/gmd/ccgg/trends_ch4/
  In conversation about 11 months ago permalink
  Attachments
  1. Line graph time series of global atmospheric methane abundance for each month from 1984 to 2023. There is a long-term increasing trend in additional to a seasonal cycle and decadal variability. September 2023 methane abundance is currently 1927 ppb.
    https://fediscience.org/system/media_attachments/files/111/710/420/171/883/528/original/3a1544c331d35cf1.png
  2. Domain not in remote thumbnail source whitelist: gml.noaa.gov
    
    Global Monitoring Laboratory - Carbon Cycle Greenhouse Gases
    
    from US Department of Commerce, NOAA, Global Monitoring Laboratory
    
    The Global Monitoring Laboratory conducts research on greenhouse gas and carbon cycle feedbacks, changes in clouds, aerosols, and surface radiation, and recovery of stratospheric ozone.

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