{"id":15721,"date":"2025-09-19T02:58:48","date_gmt":"2025-09-19T00:58:48","guid":{"rendered":"https:\/\/www.quieryavenir.fr\/blog\/?p=15721"},"modified":"2025-09-14T09:59:38","modified_gmt":"2025-09-14T07:59:38","slug":"le-rechauffement-du-au-co2","status":"publish","type":"post","link":"https:\/\/www.quieryavenir.fr\/blog\/2025\/09\/19\/le-rechauffement-du-au-co2\/","title":{"rendered":"Le r\u00e9chauffement d\u00fb au CO2"},"content":{"rendered":"

\"\"<\/p>\n

Il est irr\u00e9versible<\/span><\/h1>\n

<\/p>\n

Voici un ensemble de simulations climatiques sur 1 000 ans (utilisant FaIR) simulant une ann\u00e9e d\u2019\u00e9missions de CO2 (40 gigatonnes en 2020) ; un mill\u00e9naire plus tard, la plan\u00e8te ne s\u2019est toujours pas refroidie !<\/span><\/p>\n

Quant \u00e0 l’augmentation du niveau des oc\u00e9ans, elle continue (de moins en moins) 1’000 ans apr\u00e8s !<\/span><\/p>\n

Pourquoi le r\u00e9chauffement est-il si persistant ? M\u00eame si environ 80 % du CO2 \u00e9mis aujourd\u2019hui sera absorb\u00e9 par les puits terrestres et oc\u00e9aniques au cours des prochains mill\u00e9naires, l\u2019oc\u00e9an joue un r\u00f4le important dans la limitation du r\u00e9chauffement \u00e0 court terme.\u00a0<\/span><\/p>\n

Il s\u2019av\u00e8re que le r\u00e9chauffement suppl\u00e9mentaire, \u00e0 mesure que les oc\u00e9ans se rapprochent de l\u2019\u00e9quilibre thermique avec l\u2019atmosph\u00e8re, compense largement le refroidissement d\u00fb \u00e0 la baisse des concentrations de CO2.<\/span><\/p>\n

Ce r\u00e9sultat n\u2019est pas particuli\u00e8rement nouveau ; Comme l’ont soulign\u00e9 Susan Soloman et ses coll\u00e8gues dans leur article r\u00e9volutionnaire de 2009, \u00ab le changement climatique d\u00fb \u00e0 l’augmentation de la concentration de dioxyde de carbone est largement irr\u00e9versible pendant 1 000 ans apr\u00e8s l’arr\u00eat des \u00e9missions \u00bb\u00a0<\/span><\/p>\n

Pourquoi est-ce si important ? Cela signifie que nos \u00e9missions actuelles affecteront non seulement notre g\u00e9n\u00e9ration, mais aussi d’innombrables g\u00e9n\u00e9rations \u00e0 venir.\u00a0\u00bb<\/span><\/p>\n

https:\/\/www.pnas.org\/doi\/10.1073\/pnas.0812721106<\/span><\/span><\/a><\/p>\n

\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Il est irr\u00e9versible<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-15721","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"_links":{"self":[{"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/posts\/15721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/comments?post=15721"}],"version-history":[{"count":1,"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/posts\/15721\/revisions"}],"predecessor-version":[{"id":15722,"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/posts\/15721\/revisions\/15722"}],"wp:attachment":[{"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/media?parent=15721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/categories?post=15721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quieryavenir.fr\/blog\/wp-json\/wp\/v2\/tags?post=15721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}