{"id":8934,"date":"2015-10-23T20:26:46","date_gmt":"2015-10-23T18:26:46","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=8934"},"modified":"2015-10-23T20:26:46","modified_gmt":"2015-10-23T18:26:46","slug":"les-rechauffements-climatiques-du-passe-2","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/les-rechauffements-climatiques-du-passe-2\/","title":{"rendered":"Les r\u00e9chauffements climatiques du pass\u00e9 2"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\">Dans le th\u00e8me des r\u00e9chauffements climatiques du pass\u00e9, <a href=\"http:\/\/www.laterredufutur.com\/accueil\/les-rechauffements-climatiques-du-passe\/\" target=\"_blank\">le pr\u00e9c\u00e9dent article peut \u00eatre vu ici<\/a>, voici une p\u00e9riode plus r\u00e9cente d\u00e9nomm\u00e9e B\u00f6lling.\u00a0Le d\u00e9but du B\u00f6lling (B\u00f6lling-Aller\u00f8d) est aussi la date de haute-r\u00e9solution pour la forte hausse de temp\u00e9rature marquant la fin du Dryas ancien vers 14\u00a0670 BP.<\/p>\n<p style=\"text-align: justify;\">La derni\u00e8re glaciation s\u2019est arr\u00eat\u00e9e en moins d\u2019un an.<\/p>\n<p style=\"text-align: justify;\">Une \u00e9tude d\u00e9taill\u00e9e des glaces du Groenland r\u00e9v\u00e8le que deux violents r\u00e9chauffements climatiques se sont produits voici plus de dix mill\u00e9naires.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/B%C3%B6lling-Aller%C3%B8d.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8935\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/les-rechauffements-climatiques-du-passe-2\/bolling-allerod\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/B%C3%B6lling-Aller%C3%B8d.jpg?fit=500%2C279&amp;ssl=1\" data-orig-size=\"500,279\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"B\u00f6lling-Aller\u00f8d\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/B%C3%B6lling-Aller%C3%B8d.jpg?fit=500%2C279&amp;ssl=1\" class=\"size-full wp-image-8935 aligncenter\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/B%C3%B6lling-Aller%C3%B8d.jpg?resize=500%2C279\" alt=\"B\u00f6lling-Aller\u00f8d\" width=\"500\" height=\"279\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/B%C3%B6lling-Aller%C3%B8d.jpg?w=500&amp;ssl=1 500w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/B%C3%B6lling-Aller%C3%B8d.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/B%C3%B6lling-Aller%C3%B8d.jpg?resize=174%2C98&amp;ssl=1 174w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">L\u2019\u00e9quipe internationale de chercheurs, \u00e0 laquelle participent les pal\u00e9oclimatologues fran\u00e7ais du LSCE (Laboratoire des sciences du climat et de l&rsquo;environnement regroupant le CEA, le CNRS et l\u2019Universit\u00e9 de Versailles Saint-Quentin-en-Yvelines), a analys\u00e9 les carottes extraites lors du forage profond du NorthGrip (North Greenland ice core project) et mis en \u00e9vidence que de brusques changements climatiques ont \u00e9t\u00e9 provoqu\u00e9s par des modifications radicales de la circulation atmosph\u00e9rique.<\/p>\n<p style=\"text-align: justify;\">Un premier r\u00e9chauffement rapide s\u2019est produit il y a 14.700 ans, la temp\u00e9rature du Groenland augmentant alors de 10\u00b0C. Cette p\u00e9riode particuli\u00e8rement douce est appel\u00e9e par les scientifiques le B\u00f8lling, et correspond \u00e0 l\u2019\u00e9poque o\u00f9 les premiers humains de l\u2019\u00e2ge de pierre se sont install\u00e9s en Europe et en Scandinavie. Mais 1.800 ans plus tard, soit vers 12.900 ans, le climat refroidit soudain et un nouvel \u00e9pisode glaciaire s\u2019engage, soumettant les peuples \u00e0 des conditions tr\u00e8s s\u00e9v\u00e8res. Celles-ci durent peu et 1.200 ans plus tard, soit vers 11.700 ans, un nouveau r\u00e9chauffement rapide intervient. Celui-l\u00e0 marquera d\u00e9finitivement la fin de la p\u00e9riode glaciaire en cours.<\/p>\n<p style=\"text-align: justify;\">A ce sc\u00e9nario connu, les auteurs de l&rsquo;\u00e9tude ajoute un coup de t\u00e9h\u00e2tre surprenant : il semble \u00e0 pr\u00e9sent \u00e9tabli que le basculement de l\u2019\u00e2ge glaciaire au climat interglaciaire temp\u00e9r\u00e9 que nous connaissons actuellement s\u2019est produit en une seule ann\u00e9e ! \u00ab Nous avons analys\u00e9 la transition entre la derni\u00e8re p\u00e9riode glaciaire et notre p\u00e9riode interglaciaire chaude actuelle. Les renversements climatiques se produisent aussi abruptement que si quelqu&rsquo;un avait soudain appuy\u00e9 sur un bouton \u00bb r\u00e9sume dans Science Dorthe Dahl-Jensen, coordinatrice du projet NorthGrip et professeur au Centre d&rsquo;\u00e9tude de la glace et du climat \u00e0 l&rsquo;institut Niels Bohr de l&rsquo;Universit\u00e9 de Copenhague. Cette pr\u00e9cision est rendue possible par l\u2019\u00e9tude sp\u00e9cifique de chaque couche annuelle de la glace, qui apporte des informations sp\u00e9cifiques sur sa p\u00e9riode.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p style=\"text-align: justify;\">\u00ab Le r\u00e9sultat le plus spectaculaire est la modification de l&rsquo;origine des pr\u00e9cipitations du Groenland. Quelques ann\u00e9es apr\u00e8s la modification du contenu en poussi\u00e8res, l&rsquo;exc\u00e8s en deut\u00e9rium de la glace bascule d&rsquo;un niveau glaciaire \u00e0 un niveau interglaciaire quasiment d&rsquo;une ann\u00e9e \u00e0 l&rsquo;autre, ce qui t\u00e9moigne d&rsquo;une r\u00e9organisation extr\u00eamement rapide de la circulation atmosph\u00e9rique tropicale puis polaire \u00bb d\u00e9taille Val\u00e9rie Masson-Delmotte, directeur de recherche au LSCE.<\/p>\n<p style=\"text-align: justify;\">Les r\u00e9sultats de cette \u00e9tude se r\u00e9v\u00e8lent d\u2019une importance capitale pour mieux utiliser les mod\u00e8les climatiques et mieux pr\u00e9voir l\u2019\u00e9volution future du climat.<\/p>\n<p style=\"text-align: justify;\">\u00a0<a href=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8937\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/les-rechauffements-climatiques-du-passe-2\/inlandsis-europeen\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?fit=640%2C486&amp;ssl=1\" data-orig-size=\"640,486\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"inlandsis-europ\u00e9en\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?fit=640%2C486&amp;ssl=1\" class=\"size-full wp-image-8937 aligncenter\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?resize=640%2C486\" alt=\"inlandsis-europ\u00e9en\" width=\"640\" height=\"486\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?resize=80%2C60&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?resize=300%2C228&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?resize=174%2C131&amp;ssl=1 174w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/inlandsis-europ%C3%A9en.jpg?resize=70%2C53&amp;ssl=1 70w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">Le d\u00e9roulement de cette p\u00e9riode se serait fait de la fa\u00e7on suivante :<\/p>\n<p style=\"text-align: justify;\">Une explication avanc\u00e9e pour ce ph\u00e9nom\u00e8ne, circonscrit \u00e0 l&rsquo;Atlantique nord et \u00e0 l&rsquo;Europe, est que la fonte de l&rsquo;inlandsis europ\u00e9en permet alors aux courants oc\u00e9aniques chauds de l&rsquo;Atlantique nord (Gulf stream) de remonter jusqu&rsquo;\u00e0 l&rsquo;Islande, le r\u00e9chauffement atteint alors un taux moyen de <span class=\"nowrap\">4\u00a0\u00b0C<\/span> par si\u00e8cle et le niveau marin remonte de <span class=\"nowrap\">28\u00a0m<\/span>. C\u2019est le B\u00f8lling. Ce brusque r\u00e9chauffement favorise la fonte des glaciers du Groenland, lib\u00e9rant par cons\u00e9quent de grandes quantit\u00e9s d&rsquo;eau douce dans l&rsquo;oc\u00e9an et stoppant temporairement la remont\u00e9e des courants chauds marins. La temp\u00e9rature rechute alors, c&rsquo;est le Dryas r\u00e9cent.\u00a0Finalement, les courants s&rsquo;estompent laissant les courants marins et la temp\u00e9rature remonter de mani\u00e8re d\u00e9finitive. La p\u00e9riode tardiglaciaire s&rsquo;ach\u00e8ve alors et l&rsquo;on rentre dans le postglaciaire (Holoc\u00e8ne).<\/p>\n<p>sources :\u00a0<a href=\"https:\/\/fr.wikipedia.org\/\" target=\"_blank\">https:\/\/fr.wikipedia.org\/<\/a> \/ extrait de\u00a0<a href=\"http:\/\/www.futura-sciences.com\/magazines\/environnement\/infos\/actu\/d\/climatologie-derniere-glaciation-arretee-moins-an-15970\/\" target=\"_blank\">http:\/\/www.futura-sciences.com\/<\/a><\/p>\n<h1 id=\"firstHeading\" class=\"firstHeading\" lang=\"fr\"><\/h1>\n<p class=\"bawpvc-ajax-counter\" data-id=\"8934\">(1687)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Dans le th\u00e8me des r\u00e9chauffements climatiques du pass\u00e9, le pr\u00e9c\u00e9dent article peut \u00eatre vu ici, voici une p\u00e9riode plus r\u00e9cente&#8230;<\/p>\n","protected":false},"author":1,"featured_media":8936,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[33],"tags":[4931,4933,4929,4930,53,1673,41,2479,4932,188,159,1154,169,4855,4934],"class_list":["post-8934","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","tag-14700-ans","tag-abrupt","tag-bolling","tag-changement-abrupt","tag-changement-climatique","tag-circulation-atmospherique","tag-climat","tag-dryas","tag-episode-glaciaire","tag-europe","tag-groenland","tag-hemisphere-nord","tag-rechauffement-climatique","tag-scandinavie","tag-severes","wpcat-33-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/changement-abrupt-climatique.jpg?fit=900%2C673&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-2k6","jetpack-related-posts":[{"id":16193,"url":"https:\/\/www.laterredufutur.com\/accueil\/intense-rechauffement-terrestre-il-y-a-15-000-ans-2\/","url_meta":{"origin":8934,"position":0},"title":"Intense r\u00e9chauffement terrestre il y a 15 000 ans","author":"Admin","date":"20 janvier 2018","format":false,"excerpt":"En l'espace de quelques ann\u00e9es, les temp\u00e9ratures ont grimp\u00e9 de 10 \u00b0C dans l'h\u00e9misph\u00e8re Nord \u00e0 la fin de la derni\u00e8re glaciation. Un changement climatique tr\u00e8s brutal, probablement li\u00e9 \u00e0 des modifications de la circulation atmosph\u00e9rique, s'est produit \u00e0 deux reprises il y a environ 15 000 ans dans l'h\u00e9misph\u00e8re\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/01\/la-terre-vue-du-ciel.jpg?fit=667%2C333&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/01\/la-terre-vue-du-ciel.jpg?fit=667%2C333&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/01\/la-terre-vue-du-ciel.jpg?fit=667%2C333&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":15635,"url":"https:\/\/www.laterredufutur.com\/accueil\/intense-rechauffement-terrestre-il-y-a-15-000-ans\/","url_meta":{"origin":8934,"position":1},"title":"Intense r\u00e9chauffement terrestre il y a 15 000 ans","author":"Admin","date":"31 ao\u00fbt 2017","format":false,"excerpt":"En l'espace de quelques ann\u00e9es, les temp\u00e9ratures ont grimp\u00e9 de 10 \u00b0C dans l'h\u00e9misph\u00e8re Nord \u00e0 la fin de la derni\u00e8re glaciation. Un changement climatique tr\u00e8s brutal, probablement li\u00e9 \u00e0 des modifications de la circulation atmosph\u00e9rique, s'est produit \u00e0 deux reprises il y a environ 15 000 ans dans l'h\u00e9misph\u00e8re\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/changement-abrupt-climatique.jpg?fit=900%2C673&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/changement-abrupt-climatique.jpg?fit=900%2C673&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/changement-abrupt-climatique.jpg?fit=900%2C673&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/changement-abrupt-climatique.jpg?fit=900%2C673&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4497,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-climat-a-bascule-de-facon-extremement-brutale-a-la-fin-de-la-derniere-periode\/","url_meta":{"origin":8934,"position":2},"title":"Le climat a bascul\u00e9 de fa\u00e7on extr\u00eamement brutale \u00e0 la fin de la derni\u00e8re p\u00e9riode","author":"Admin","date":"11 juillet 2008","format":false,"excerpt":"De nouvelles analyses \u00e0 ultra-haute r\u00e9solution de carottes de glace du Groenland r\u00e9v\u00e8lent que le climat a bascul\u00e9 extr\u00eamement brutalement, en quelques ann\u00e9es, \u00e0 la fin de la derni\u00e8re p\u00e9riode glaciaire voici environ 10 000 ans. C'est ce que montre l'\u00e9quipe internationale qui a analys\u00e9 les carottes du forage profond\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/striesglaciaire.jpg?fit=450%2C284&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":564,"url":"https:\/\/www.laterredufutur.com\/accueil\/changement-climatique-abrupte\/","url_meta":{"origin":8934,"position":3},"title":"Changement climatique abrupte","author":"Admin","date":"9 octobre 2011","format":false,"excerpt":"Lien apport\u00e9 par Julien - Voici un documentaire qui explique ce qu'est un\u00a0changement climatique abrupte. Dans un monde o\u00f9 l'on parle continuellement de r\u00e9chauffement climatique, ici on revoit l'Histoire depuis l'\u00e9poque du Dryas. Les carottes nous d\u00e9voilent des perturbations oc\u00e9aniques m\u00eame pendant le Petit Age Glaciaire - PAG (XIV eme\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"froid","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2011\/10\/froid-futur.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2573,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-groenland-se-refroidit\/","url_meta":{"origin":8934,"position":4},"title":"Le Groenland se refroidit","author":"Admin","date":"12 d\u00e9cembre 2004","format":false,"excerpt":"Pendant que l'on parle de r\u00e9chauffement global, que l'on parle de la fonte du permafrost autour du cercle polaire, que l'on parle de la fonte de la banquise dans l'artique, le Groenland montre des signes de refroidissement. Que se passe t-il ? Que se cache t-il derri\u00e8re ces faits ?\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/groenland.jpeg?fit=450%2C332&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":25170,"url":"https:\/\/www.laterredufutur.com\/accueil\/extinctions-de-la-megafaune-de-la-brea-provoquees-par-des-incendies-il-y-a-13-000-ans\/","url_meta":{"origin":8934,"position":5},"title":"Extinctions de la m\u00e9gafaune de La Brea provoqu\u00e9es par des incendies il y a 13 000 ans","author":"Admin","date":"3 septembre 2023","format":false,"excerpt":"ASSOCIATION AM\u00c9RICAINE POUR L'AVANCEMENT DES SCIENCES (AAAS) Selon une nouvelle \u00e9tude, les extinctions de la m\u00e9gafaune du Pl\u00e9istoc\u00e8ne en Californie du Sud ont \u00e9t\u00e9 provoqu\u00e9es par des incendies de grande ampleur dans un \u00e9cosyst\u00e8me rendu de plus en plus vuln\u00e9rable par le changement climatique et l'impact de l'homme. Ces r\u00e9sultats,\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/mammouth-feu.jpg?fit=1050%2C590&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/mammouth-feu.jpg?fit=1050%2C590&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/mammouth-feu.jpg?fit=1050%2C590&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/mammouth-feu.jpg?fit=1050%2C590&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/mammouth-feu.jpg?fit=1050%2C590&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/8934","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=8934"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/8934\/revisions"}],"predecessor-version":[{"id":8938,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/8934\/revisions\/8938"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/8936"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=8934"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=8934"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=8934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}