{"id":1181,"date":"2009-02-14T10:22:55","date_gmt":"2009-02-14T10:22:55","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/02\/14\/des-teneurs-en\/"},"modified":"2012-07-12T09:31:05","modified_gmt":"2012-07-12T09:31:05","slug":"des-teneurs-en","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/02\/14\/des-teneurs-en\/","title":{"rendered":"Des teneurs en CO2 de 390 ppm ont \u00e9t\u00e9 mesur\u00e9es cet hiver dans les r\u00e9gions polaires"},"content":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; Les teneurs en CO2 dans l&rsquo;atmosph\u00e8re oscillent autour d&rsquo;une droite croissante avec le temps, de pente de l&rsquo;ordre de 2 ppm par an, au gr\u00e9 des saisons et de la respiration v\u00e9g\u00e9tale (FIG.). L&rsquo;Institut Polaire Norv\u00e9gien annonce avoir mesur\u00e9 \u00e0 sa station du Mont Zeppelin en Novembre et en D\u00e9cembre des valeurs moyennes de CO2 proches de 390 ppm avec certaines valeurs journali\u00e8res atteignant 394 ppm. Ces valeurs sont dans la ligne des pr\u00e9visions des maximums annuels pour 2009. Il est donc possible de pronostiquer que des valeurs maximales \u00e0 400 ppm de CO2 seront mesur\u00e9es d\u00e8s 2014, c&rsquo;est \u00e0 dire dans 5 ans. Rappelons que certaines \u00e9tudes de simulation envisagent un effet irr\u00e9versible du CO2 sur le climat \u00e0 partir de teneurs de 450 ppm (<a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/nouvelles-ner-3.html_.png\">LIRE<\/a>) qui seront atteintes dans environ 30 ans, au rythme o\u00f9 vont les choses en ce bas monde. Il faudra bien un jour comprendre que ce ne sont pas quelques milliers d&rsquo;\u00e9oliennes indisciplin\u00e9es qui permettront de r\u00e9duire de moiti\u00e9 les 32 ou 35 milliards de tonnes de CO2 largu\u00e9es annuellement dans l&rsquo;azur.<a href=\"http:\/\/clabedan.typepad.com\/photos\/uncategorized\/2009\/02\/14\/co2_trend_mlo.png\"><img loading=\"lazy\" decoding=\"async\" height=\"356\" alt=\"Co2_trend_mlo\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/co2_trend_mlo.png\" width=\"480\"  \/><\/a><\/p>\n<p>Le 14 F\u00e9vrier 2009.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; Les teneurs en CO2 dans l&rsquo;atmosph\u00e8re oscillent autour d&rsquo;une droite croissante avec le temps, de pente de l&rsquo;ordre de 2 ppm par an, au gr\u00e9 des saisons et de la respiration v\u00e9g\u00e9tale (FIG.). L&rsquo;Institut Polaire Norv\u00e9gien annonce avoir mesur\u00e9 \u00e0 sa station du Mont Zeppelin en Novembre [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":11829,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1181","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rechauffement-climatique"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Des teneurs en CO2 de 390 ppm ont \u00e9t\u00e9 mesur\u00e9es cet hiver dans les r\u00e9gions polaires - leblogenergie.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/02\/14\/des-teneurs-en\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Des teneurs en CO2 de 390 ppm ont \u00e9t\u00e9 mesur\u00e9es cet hiver dans les r\u00e9gions polaires - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; Les teneurs en CO2 dans l&rsquo;atmosph\u00e8re oscillent autour d&rsquo;une droite croissante avec le temps, de pente de l&rsquo;ordre de 2 ppm par an, au gr\u00e9 des saisons et de la respiration v\u00e9g\u00e9tale (FIG.). 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&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; Les teneurs en CO2 dans l&rsquo;atmosph\u00e8re oscillent autour d&rsquo;une droite croissante avec le temps, de pente de l&rsquo;ordre de 2 ppm par an, au gr\u00e9 des saisons et de la respiration v\u00e9g\u00e9tale (FIG.). 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