Discover and read the best of Twitter Threads about #JourneeMondialeDesSols

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A l'occasion de la #JourneeMondialeDesSols
mini thread sur un sol particulier, le #pergélisol, ou permafrost.
La définition dit que c'est un #sol "perpétuellement gelé" ... sauf que ...
#SVT
🧵⤵️
15 millions de km carrés sont concernés. On en trouve essentiellement en Sibérie, Canada et Alaska
Avec le #changementclimatique ce sol parfois gelé depuis des 𝐦𝐢𝐥𝐥𝐢𝐨𝐧𝐬 d'années dégèle ...
Et alors ? Oh pas grand chose ...
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