#135 - POURQUOI L'EFFONDREMENT DE L'ANTARCTIQUE VA CHANGER NOS VIES ?

Greenletter Club • January 26, 2025
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Greenletter Club

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Faut-il manger moins de poissons ? Pourra-t-on bientĂ´t voler en avion Ă©lectrique ? A quoi ressemblera la France en 2050 ? Dans le Greenletter Club, nous donnons la parole Ă  des personnalitĂ©s hyper-pointues pour dĂ©cortiquer les grands sujets Ă©cologiques. Du capitaine d'industrie au patron d’ONG, en passant par le spĂ©cialiste du pĂ©trole, nous entrons pendant plus d'une heure dans l'intimitĂ© de sujets qui vont changer le monde et notre quotidien. Le Greenletter Club est un mĂ©dia 100% indĂ©pendant, sous forme d'association loi 1901. Pour nous soutenir ? 🔥 c'est ici 👉 https://bit.ly/3ppLx68 A ses dĂ©buts le GLC a Ă©tĂ© soutenu par les fondatrices de MyLittleParis. *** En podcast : 👉 Deezer : deezer.com/fr/show/1066462 👉 Spotify : open.spotify.com/show/2IICJ6bIj8sSAqHVE7YR4G 👉 Apple Podcasts : https://apple.co/3zgrbg0 *** 🎥 Interviews : Maxime Thuillez [email protected] *** 👉Instagram : instagram.com/greenletterclub/ 👉Twitter : twitter.com/GreenletterClub

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🔥 Le Greenletter Club est 100% indépendant, pour nous aider, c'est ici 👉 https://bit.ly/3ppLx68 Pourquoi l'effondrement de l'Antarctique va changer nos vies ? C'est la question posée à Eric Rignot, glaciologue spécialiste de l’observation des calottes polaires par satellite, professeur à l’université de Californie à Irvine, chercheur auprès de la NASA, membre de l’Académie des sciences américaines. Les observations de la calotte glaciaire antarctique sont alarmantes, les glaciers reculent à une vitesse inouïes, et les chercheurs pensent désormais que le point de bascule a été franchi, que rien ne permettra de revenir en arrière. +1 mètre, +2 mètres, +3 mètres en 2100 ? La question est désormais de savoir à quelle vitesse ces "glaciers de l'apocalypse" vont se mettre à fondre. D'autant que le Groenland a lui aussi atteint son point de bascule, et fond massivement du Nord au Sud. Même l'Antarctique de l'Est, autrefois considérée comme stable, montre de très sérieux signe de destabilisation, au point que de nombreux chercheurs pensent que ces glaciers pourraient à leur tour être destabilisés. Interview réalisée par Maxime Thuillez CHAPITRE : 00:00 - Extraits 01:32 - Les calottes glaciaires 03:20 - Satellites & observations de la fonte des glaciers 06:15 - L'Antarctique de l'Ouest est-il condamné ? 07:55 - Les glaciers de l'apocalypses : Pine Island, Pope, Thwaithes 09:33 - Quelle élévation du niveau des mers les glaciers de l'apocalypse ? 10:39 - Quelle échéance ? quel rythme ? 13:18 - Le rôle de l'Océan ? 15:51 - Des effondrements rapides de glaciers géants ? 17:25 - L'Antarctique de l'Est, menacé ? 18:58 - Les points de bascule franchis ? 24:24 - Groenland, quel état de la calotte ? 25:57 - La pénétration de l'eau au Groenland 27:31 - Les facteurs d'élévation du niveau des mers 33:34 - Climat du passé : des hausses fulgurantes du niveau des mers ? 36:51 - Facteurs régionaux : l'élévation du niveau des mers se différent selon les régions 37:30 - Les modélisations = trop conservatrices ? 41:35 - Fonte des calottes & courants atmosphériques 45:18 - L'ozone a un effet sur le climat 46:26 - Les courants marins 51:56 - 2300 : des dizaines de mètres d'élevation du niveau des mers ?

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