{"id":2494,"date":"2022-02-02T16:13:50","date_gmt":"2022-02-02T16:13:50","guid":{"rendered":"https:\/\/www.africa-press.net\/djibouti\/politique\/cette-date-qui-marque-un-point-de-rupture-historique-pour-le-climat-de-locean-mondial"},"modified":"2022-02-13T16:44:54","modified_gmt":"2022-02-13T16:44:54","slug":"cette-date-qui-marque-un-point-de-rupture-historique-pour-le-climat-de-locean-mondial","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/cette-date-qui-marque-un-point-de-rupture-historique-pour-le-climat-de-locean-mondial","title":{"rendered":"Cette date qui marque un point de rupture historique pour le climat de l’oc\u00e9an mondial"},"content":{"rendered":"

Africa-Press – Djibouti. <\/strong><\/span>L\u2019ann\u00e9e 2014 a \u00e9t\u00e9 le point de non-retour pour l\u2019oc\u00e9an mondial, indique une \u00e9tude publi\u00e9e par la revue PLOS Climate. Des temp\u00e9ratures extr\u00eames sont depuis observ\u00e9es sur plus de 50% de la surface de l\u2019oc\u00e9an mondial, conduisant \u00e0 des changements dramatiques dans les syst\u00e8mes marins.<\/p>\n

Une \u00e9tude de chercheurs am\u00e9ricains publi\u00e9e le 1er f\u00e9vrier dans la revue PLOS Climate tire la sonnette d\u2019alarme sur l\u2019\u00e9tat de l\u2019oc\u00e9an mondial. En cause, l\u2019analyse des donn\u00e9es sur la temp\u00e9rature de sa surface depuis 1870.<\/p>\n

Les bassins Atlantique Sud et Indien ont franchi cette barri\u00e8re de 50% plus t\u00f4t, respectivement en 1998 et 2007, mais l\u2019ann\u00e9e 2014 a \u00e9t\u00e9 le point de non-retour. Ces vagues de chaleur ont surtout affect\u00e9 l\u2019Arctique o\u00f9 la superficie concern\u00e9e a augment\u00e9 de plus de 400% par rapport au si\u00e8cle pr\u00e9c\u00e9dent.<\/p>\n

Les chercheurs estiment que la chaleur extr\u00eame des eaux oc\u00e9aniques produit des changements dramatiques des \u00e9cosyst\u00e8mes marins et signalent que le r\u00e9chauffement climatique et ses cons\u00e9quences repr\u00e9sentent d\u00e9j\u00e0 un probl\u00e8me r\u00e9el de nos jours.<\/p>\n

L\u2019OMM pr\u00e9occup\u00e9e par le sort de milliards de personnes vivant au bord des oc\u00e9ans<\/b><\/p>\n

Les r\u00e9percussions du r\u00e9chauffement climatique avaient \u00e9t\u00e9 mises en lumi\u00e8re d\u00e8s 2020 dans un rapport sur l\u2019\u00e9tat des oc\u00e9ans de l\u2019Organisation m\u00e9t\u00e9orologique mondiale (OMM).<\/p>\n

Le rapport indiquait que les oc\u00e9ans absorbaient 90% de l\u2019exc\u00e9dent de chaleur g\u00e9n\u00e9r\u00e9 par les activit\u00e9s humaines et accumul\u00e9 dans le syst\u00e8me climatique et que leur temp\u00e9rature \u00e9tait en augmentation constante depuis 1970. Le recul de la banquise \u00e9tait aussi constant.<\/p>\n

Alors que des milliards de personnes vivent au bord des oc\u00e9ans et plus de trois milliards de personnes d\u00e9pendent de la biodiversit\u00e9 marine pour leur subsistance, les populations du monde entier se voient contraintes de bouleverser leur rapport aux oc\u00e9ans pour s’adapter \u00e0 ces changements.<\/p>\n

Pour plus d’informations et d’analyses sur la Djibouti<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Djibouti. L\u2019ann\u00e9e 2014 a \u00e9t\u00e9 le point de non-retour pour l\u2019oc\u00e9an mondial, indique une \u00e9tude publi\u00e9e par la revue PLOS Climate. Des temp\u00e9ratures extr\u00eames sont depuis observ\u00e9es sur plus de 50% de la surface de l\u2019oc\u00e9an mondial, conduisant \u00e0 des changements dramatiques dans les syst\u00e8mes marins. Une \u00e9tude de chercheurs am\u00e9ricains publi\u00e9e le […]<\/p>\n","protected":false},"author":82,"featured_media":2493,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,11,10],"tags":[36,49,50],"class_list":["post-2494","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-homepage-french","category-toutes-les-actualites","tag-africa-press","tag-africa-press-djibouti","tag-djibouti"],"yoast_head":"\nCette date qui marque un point de rupture historique pour le climat de l'oc\u00e9an mondial - Djibouti<\/title>\n<meta name=\"description\" content=\"L\u2019ann\u00e9e 2014 a \u00e9t\u00e9 le point de non-retour pour l\u2019oc\u00e9an mondial, indique une \u00e9tude publi\u00e9e par la revue PLOS Climate. 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