{"id":4585,"date":"2008-09-05T16:24:32","date_gmt":"2008-09-05T14:24:32","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil1\/?p=4585"},"modified":"2019-02-08T19:39:41","modified_gmt":"2019-02-08T18:39:41","slug":"que-sest-il-passe-il-y-a-12679-ans","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/que-sest-il-passe-il-y-a-12679-ans\/","title":{"rendered":"Que s&rsquo;est il pass\u00e9 il y a 12679 ans ?"},"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 align=\"justify\"><span style=\"font-size: small;\">Refroidissement climatique soudain il y a exactement 12,679 ans<br \/>\nmardi 12 ao\u00fbt 2008 par N.O.T.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">OSLO (Reuters) &#8211; Un refroidissement drastique du climat en Europe occidentale est arriv\u00e9 il y a exactement 12,679 ans, apparemment apr\u00e8s un d\u00e9placement des vents froids au-dessus de l\u2019Atlantique, ont dit les scientifiques en ce mois d&rsquo;aout 2008, donnant un indice sur le fa\u00e7on dont le climat peut brutalement changer.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">L\u2019\u00e9tude, de pollens, min\u00e9raux et autres mati\u00e8res d\u00e9pos\u00e9es sur les couches annuelles au fond du Lac Meerfelder Maar en Allemagne, indique un changement abrupt dans les s\u00e9diments li\u00e9 \u00e0 un refroidissement soudain sur une seule ann\u00e9e.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">\u00ab\u00a0Nos donn\u00e9es indiquent une augmentation abrupte des temp\u00eates durant l\u2019automne et le printemps, survenant d\u2019une ann\u00e9e \u00e0 l\u2019autre il y a 12,679 ans, co\u00efncidant approximativement avec d\u2019autres changement dans cette r\u00e9gion,\u00a0\u00bb ont-il \u00e9crit dans le journal Nature Geoscience.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Les scientifiques connaissent depuis longtemps le net refroidissement vers la fin du derni\u00e8re \u00c2ge Glaciaire, connu sous le nom de refroidissement du Dryas r\u00e9cent. L\u2019\u00e9tude des chercheurs en Allemagne, Suisse et aux \u00c9tats-Unis pourrait clarifier les raisons et la dur\u00e9e exacte.<\/span><\/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 align=\"justify\"><span style=\"font-size: small;\">\u00ab\u00a0Nous sugg\u00e9rons que ce changement dans la force des vents repr\u00e9sente une modification abrupte dans l\u2019Atlantique Nord occidental vers un flux plus puissant et zonal,\u00a0\u00bb ont-il \u00e9crit.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Le changement des vents pourrait avoir lui-m\u00eame \u00e9t\u00e9 enclench\u00e9 par des facteurs comme un d\u00e9placement l\u00e9ger vers le sud de la glace dans l\u2019Atlantique Nord provoqu\u00e9 par d\u2019autres facteurs naturels, ont-ils dit.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Pr\u00e9c\u00e9demment, les scientifiques ont \u00e9mis l\u2019hypoth\u00e8se que le refroidissement soudain pourrait avoir \u00e9t\u00e9 provoqu\u00e9 par une m\u00e9t\u00e9orite qui a engendr\u00e9 de la poussi\u00e8re et a diminu\u00e9 la lumi\u00e8re du soleil.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">D\u2019autres th\u00e9ories sont que l\u2019affaiblissement du courant chaud Gulf Stream, peut-\u00eatre provoqu\u00e9 par le vaste influx d\u2019eau douce venant de la fonte des glaciers en Am\u00e9rique du Nord ou Europe. (&#8230;)<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Certains scientfiques ont sugg\u00e9r\u00e9 que la fonte de la glace du Gro\u00ebnland, par exemple, a pu conduire \u00e0 un influx d\u2019eau douce dans l\u2019Atlantique qui a \u00e9galement pu ralentir le Gulf Stream et amener un refroidissement brusque malgr\u00e9 une tendance \u00e0 un r\u00e9chauffement global.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">source : <a href=\"http:\/\/www.newsoftomorrow.org\/\">http:\/\/www.newsoftomorrow.org\/<\/a><\/span><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"4585\">(799)<\/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>Refroidissement climatique soudain il y a exactement 12,679 ans mardi 12 ao\u00fbt 2008 par N.O.T. OSLO (Reuters) &#8211; Un refroidissement&#8230;<\/p>\n","protected":false},"author":1,"featured_media":17730,"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":false,"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":[3476,1699,242,2479,396,703,3475],"class_list":["post-4585","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","tag-12679-ans","tag-age-de-pierre","tag-atlantique","tag-dryas","tag-gulf-stream","tag-impact","tag-vent-douest","wpcat-33-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/Asteroide.jpg?fit=1200%2C800&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-1bX","jetpack-related-posts":[{"id":564,"url":"https:\/\/www.laterredufutur.com\/accueil\/changement-climatique-abrupte\/","url_meta":{"origin":4585,"position":0},"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":8934,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-rechauffements-climatiques-du-passe-2\/","url_meta":{"origin":4585,"position":1},"title":"Les r\u00e9chauffements climatiques du pass\u00e9 2","author":"Admin","date":"23 octobre 2015","format":false,"excerpt":"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 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. La derni\u00e8re glaciation\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":4621,"url":"https:\/\/www.laterredufutur.com\/accueil\/refroidissement-climatique-et-consequences\/","url_meta":{"origin":4585,"position":2},"title":"Refroidissement climatique et cons\u00e9quences","author":"Admin","date":"1 octobre 2008","format":false,"excerpt":"Les choses commencent \u00e0 bouger, les mod\u00e8les se discutent, les discussions sont toujours aussi houleuses, mais que se passe t-il ? Le r\u00e9chauffement climatique reste dans les m\u00e9dias, mais le soleil joue le mauvais \u00e9l\u00e8ve. Le nouveau cycle solaire not\u00e9 num\u00e9ro 24 a bien d\u00e9but\u00e9 depuis janvier 2008. Mais aucune\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":24917,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-decharges-massives-dicebergs-au-cours-de-la-derniere-periode-glaciaire-nont-pas-eu-dimpact-sur-le-groenland\/","url_meta":{"origin":4585,"position":3},"title":"Les d\u00e9charges massives d&rsquo;icebergs au cours de la derni\u00e8re p\u00e9riode glaciaire n&rsquo;ont pas eu d&rsquo;impact sur le Groenland","author":"Admin","date":"25 avril 2023","format":false,"excerpt":"Au cours de la derni\u00e8re p\u00e9riode glaciaire, d'\u00e9normes icebergs se sont p\u00e9riodiquement d\u00e9tach\u00e9s d'une calotte glaciaire couvrant une grande partie de l'Am\u00e9rique du Nord et ont d\u00e9vers\u00e9 de la glace fondant rapidement dans l'oc\u00e9an Atlantique Nord autour du Groenland, d\u00e9clenchant ainsi des changements climatiques abrupts \u00e0 l'\u00e9chelle plan\u00e9taire. Ces \u00e9pisodes\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\/2021\/12\/groenland-geothermie.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/12\/groenland-geothermie.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/12\/groenland-geothermie.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/12\/groenland-geothermie.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/12\/groenland-geothermie.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":23960,"url":"https:\/\/www.laterredufutur.com\/accueil\/wally-broecker-a-devine-comment-le-climat-pouvait-soudainement-changer\/","url_meta":{"origin":4585,"position":4},"title":"Wally Broecker a devin\u00e9 comment le climat pouvait soudainement changer","author":"Admin","date":"12 avril 2022","format":false,"excerpt":"L'arr\u00eat d'un tapis roulant oc\u00e9anique pourrait provoquer un changement climatique brutal. C'est au milieu des ann\u00e9es 1980, lors d'une r\u00e9union en Suisse, que les oreilles de Wally Broecker se sont dress\u00e9es. Le scientifique Hans Oeschger d\u00e9crivait une carotte de glace pr\u00e9lev\u00e9e dans une station radar militaire au sud du Groenland.\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\/2017\/10\/climat-banquise.jpg?fit=1000%2C625&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/10\/climat-banquise.jpg?fit=1000%2C625&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/10\/climat-banquise.jpg?fit=1000%2C625&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/10\/climat-banquise.jpg?fit=1000%2C625&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":3603,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-choc-climatique-en-moins-de-10-ans-des-etudes-et-un-rapport-le-demontrent\/","url_meta":{"origin":4585,"position":5},"title":"Un choc climatique en moins de 10 ans : Des \u00e9tudes et un rapport le d\u00e9montrent","author":"Admin","date":"24 ao\u00fbt 2006","format":false,"excerpt":"Les changements climatiques ne sont pas n\u00e9cessairement lents. De r\u00e9centes \u00e9tudes prouvent que des \u00abbasculements\u00bb se sont d\u00e9j\u00e0 produits en moins d'une d\u00e9cennie. La verte Irlande transform\u00e9e en d\u00e9sert de glace. Au large des c\u00f4tes fran\u00e7aises, des phoques du Groenland nagent entre des morceaux de banquise. Des ours polaires r\u00f4dent\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\/spaw\/images\/geoid.gif?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/4585","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=4585"}],"version-history":[{"count":2,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/4585\/revisions"}],"predecessor-version":[{"id":18382,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/4585\/revisions\/18382"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/17730"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=4585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=4585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=4585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}