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Philippe.ciais Profile picture
Philippe.ciais
@ciais_philippe
Researcher #LSCE @globalcarbonproject @AcadSciences @Carbon_Monitor #carbon cycle, #climate change, global #ecology. Tweets on his own. Flowers on Fridays 🌺🌼
Apr 4, 2023 • 9 tweets • 4 min read
🌲🌳 🍂 Forte baisse de l’absorption du CO2 par les forêts

🚨 les forêts 🇫🇷 absorbent 2 fois moins de carbone qu’il y a dix ans !

Un petit thread … Les données sont ‘officielles’ - celles du CITEPA basées sur l’inventaire forestier national de @IGNFRA ( plusieurs milliers de placettes forestières dont 20% est re-mesuré tous les ans et évalue les changements à cinq ans lors de chaque campagne annuelle)
inventaire-forestier.ign.fr
Dec 14, 2022 • 19 tweets • 14 min read
Why did #methane surge in 2020 ?

Our article just published @Nature shows that the high growth rate of CH4 in 2020 is explained half by decreased OH removal & half by more wetland emissions @ShushiPeng @CEA_Officiel @gcarbonproject @IPSL_outreach … 🧶

nature.com/articles/s4158… Image We expected in 2020 less anthropogenic emissions from #COVID but in fact the #CH4 growth rate was record high at 15.1 ppt y-1 (@NOAA data ) Image