{"id":798,"date":"2020-08-20T21:22:22","date_gmt":"2020-08-20T19:22:22","guid":{"rendered":"http:\/\/actforyourplanet.com\/?p=798"},"modified":"2020-10-08T21:23:58","modified_gmt":"2020-10-08T19:23:58","slug":"le-point-de-non-retoiur-pour-les-glaciers-du-groenland","status":"publish","type":"post","link":"https:\/\/actforyourplanet.com\/index.php\/2020\/08\/20\/le-point-de-non-retoiur-pour-les-glaciers-du-groenland\/","title":{"rendered":"Le point de NON RETOUR pour les glaciers du Groenland"},"content":{"rendered":"
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ILULISSAT, GREENLAND – JULY 30: In this aerial view melting ice forms a lake on free-floating ice jammed into the Ilulissat Icefjord during unseasonably warm weather on July 30, 2019 near Ilulissat, Greenland. The Sahara heat wave that recently sent temperatures to record levels in parts of Europe is arriving in Greenland. Climate change is having a profound effect in Greenland, where over the last several decades summers have become longer and the rate that glaciers and the Greenland ice cap are retreating has accelerated. (Photo by Sean Gallup\/Getty Images)<\/p><\/div>\n

Le volume des glaciers du Groenland a consid\u00e9rablement diminu\u00e9 ces derni\u00e8res ann\u00e9es. M\u00eame si le r\u00e9chauffement climatique venait \u00e0 s’interrompre d\u00e8s aujourd’hui, ils dispara\u00eetraient in\u00e9vitablement.<\/h2>\n
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La deuxi\u00e8me plus grande calotte glaciaire au monde sur le point de s’\u00e9vanouir ? Selon une \u00e9tude publi\u00e9e par le magazine NATURE :\u00a0la disparition des glaciers du Groenland serait in\u00e9vitable. Le processus de renouvellement aurait atteint un point de non-retour et serait d\u00e9sormais irr\u00e9versible : la neige qui reconstitue la calotte glaciaire chaque ann\u00e9e ne comble plus la perte de glace.<\/section>\n
Les scientifiques se sont appuy\u00e9s sur les donn\u00e9es satellitaires pour retracer l\u2019\u00e9volution de plus de 200 glaciers du Groenland ces quarante derni\u00e8res ann\u00e9es. Ils en concluent que dans les ann\u00e9es 80 et 90, le Groenland perdait en moyenne 450 milliards de tonnes de glace chaque ann\u00e9e, combl\u00e9s en partie par les chutes de neige.Depuis les ann\u00e9es 2000, la fonte s’est acc\u00e9l\u00e9r\u00e9e – le volume de glace perdu chaque ann\u00e9e fr\u00f4le d\u00e9sormais les 500 milliards de tonnes de glace. La quantit\u00e9 de neige, elle, n\u2019augmente pas et ne parvient pas \u00e0 compenser cette acc\u00e9l\u00e9ration. Ian Howat, co-auteur de l\u2019\u00e9tude, \u00e9crit que \u00ab\u00a0m\u00eame si le climat devait rester le m\u00eame ou m\u00eame se rafra\u00eechir, la calotte glaciaire perdrait encore de la masse\u00a0\u00bb.<\/em><\/section>\n","protected":false},"excerpt":{"rendered":"

Le volume des glaciers du Groenland a consid\u00e9rablement diminu\u00e9 ces derni\u00e8res ann\u00e9es. M\u00eame si le r\u00e9chauffement climatique venait \u00e0 s’interrompre d\u00e8s aujourd’hui, ils dispara\u00eetraient in\u00e9vitablement. La deuxi\u00e8me plus grande calotte glaciaire au monde sur le point de s’\u00e9vanouir ? Selon une \u00e9tude publi\u00e9e par le magazine NATURE :\u00a0la disparition des glaciers du Groenland serait in\u00e9vitable. […]<\/p>\n","protected":false},"author":1,"featured_media":800,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[10,5,44,1],"tags":[],"class_list":["post-798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biodiversity","category-climate","category-covid-19-sustainability","category-energy"],"_links":{"self":[{"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/posts\/798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/comments?post=798"}],"version-history":[{"count":5,"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/posts\/798\/revisions"}],"predecessor-version":[{"id":804,"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/posts\/798\/revisions\/804"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/media\/800"}],"wp:attachment":[{"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/media?parent=798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/categories?post=798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/actforyourplanet.com\/index.php\/wp-json\/wp\/v2\/tags?post=798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}