Zack Labe

🚨 Methane (CH₄; potent greenhouse gas) reached another preliminary record high value in December 2022 (1924.99 ppb).

Again, look in the upper-right corner...

December 2021's global methane abundance was 1908.84 ppb. Data available from https://gml.noaa.gov/ccgg/trends_ch4/.

Global Monitoring Laboratory - Carbon Cycle Greenhouse Gases

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.

Apr 5, 2023 at 5:35pmWeb
Show threadLes W KuzykApr 5, 2023
@ZLabe That upcurve in the last half looks scary. Accelerating. :-( Not good.
Show threadPlumeros ☮️Apr 5, 2023
@AnotherWealth @ZLabe What caused the flattening arount y2k?
Show threadZack LabeApr 5, 2023
@plumeros @AnotherWealth Scientists are still trying to pinpoint the cause of recent changes in methane concentration trends (e.g., due to wetlands). Here are some articles exploring possible sources/sinks: https://phys.org/news/2019-03-methane-atmosphere-surging-scientists.html & https://e360.yale.edu/features/methane_riddle_what_is_causing_the_rise_in_emissions & https://nature.com/articles/d41586-022-00312-2 & https://earthobservatory.nasa.gov/images/150967/why-methane-surged-in-2020
Methane in the atmosphere is surging, and that's got scientists worried

Scientists love a good mystery. But it's more fun when the future of humanity isn't at stake.

Phys.org
Show threadPlumeros ☮️Apr 6, 2023
@ZLabe @AnotherWealth Very interesting links, thanks Zack!