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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?

   • Embed this notice
     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/