{"id":7522,"date":"2016-09-30T17:43:26","date_gmt":"2016-09-30T15:43:26","guid":{"rendered":"http:\/\/www.arnoschrauwers.nl\/weblog\/?p=7522"},"modified":"2016-09-30T17:43:26","modified_gmt":"2016-09-30T15:43:26","slug":"7522","status":"publish","type":"post","link":"https:\/\/www.arnoschrauwers.nl\/weblog\/30\/09\/2016\/7522\/","title":{"rendered":"&#8220;We zijn bij klimaat op gevaarlijk terrein beland&#8221;"},"content":{"rendered":"<div id=\"attachment_7523\" style=\"width: 681px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7523\" class=\"size-full wp-image-7523\" src=\"http:\/\/www.arnoschrauwers.nl\/weblog\/wp-content\/uploads\/1916a598a0_72145_co2-concentration-globale-mars-2015-noaajpg.jpg\" alt=\"De ontwikkeling van de kooldioxideconcentratie in de atmosfeer bij Mauna Lao\" width=\"671\" height=\"449\" srcset=\"https:\/\/www.arnoschrauwers.nl\/weblog\/wp-content\/uploads\/1916a598a0_72145_co2-concentration-globale-mars-2015-noaajpg.jpg 671w, https:\/\/www.arnoschrauwers.nl\/weblog\/wp-content\/uploads\/1916a598a0_72145_co2-concentration-globale-mars-2015-noaajpg-300x201.jpg 300w, https:\/\/www.arnoschrauwers.nl\/weblog\/wp-content\/uploads\/1916a598a0_72145_co2-concentration-globale-mars-2015-noaajpg-448x300.jpg 448w\" sizes=\"auto, (max-width: 671px) 100vw, 671px\" \/><p id=\"caption-attachment-7523\" class=\"wp-caption-text\">De ontwikkeling van de kooldioxideconcentratie in de atmosfeer bij Mauna Loa (afb: NOAA)<\/p><\/div>\n<p>Sedert de industri\u00eble revolutie eind negentiende eeuw is de hoeveelheid kooldioxide in de atmosfeer gestegen met gemiddelde 2 ppm (delen per miljoen)\u00a0per jaar. In september, normaal het laagste niveau in een jaar, is in <a href=\"https:\/\/nl.wikipedia.org\/wiki\/Mauna_Loa\">Mauna Loa<\/a> op Hawaii\u00a0<a href=\"https:\/\/scripps.ucsd.edu\/programs\/keelingcurve\/2016\/09\/23\/note-on-reaching-the-annual-low-point\/\">een niveau bereikt<\/a> \u00a0van 401 permiljoen, dat volgens de geleerden in miljoenen jaren niet zou zijn\u00a0voorgekomen. We zijn op een gevaarlijk punt aangekomen, stellen sommigen dan ook.\u00a0<!--more--><\/p>\n<p>In 2013 mat het observatorium in Mauna Loa voor het eerst in 3,5 miljoen jaar een\u00a0CO<sub>2<\/sub>-concentratie boven de 400 ppm. Dat duurde maar een dag. In maart 2015 werd gedurende de hele maand een concentratie boven de 400 ppm gemeten.<br \/>\nSommige onderzoekers denken dat we een onomkeerbaar punt hebben bereikt. &#8220;Om de hoeveelheid CO<sub>2<\/sub> in de lucht te verminderen zal het niet meer voldoende zijn duurzame energiebronnen te gebruiken. We zullen ook systemen moeten gebruiken om kooldioxide te bergen die we al in de atmosfeer hebben uitgestoten&#8221;, zegt <a href=\"http:\/\/www.somas.stonybrook.edu\/people\/faculty\/david-black\/\">David Black<\/a> van de universiteit van Stony Brook (VS),.<br \/>\nSinds het begin van de industri\u00eble revolutie eind negentiende eeuw is de concentratie aan CO<sub>2<\/sub> in de atmosfeer toegenomen van 120 ppm tot, nu ruim 400 ppm. De helft van de stijging vond plaats na 1980.<\/p>\n<p><em>Bron: <a href=\"http:\/\/www.futura-sciences.com\/planete\/actualites\/climatologie-concentration-co2-air-point-non-retour-maj-58177\/#xtor=RSS-8\">Futura-Sciences<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>De kooldioxideconcentratie bereikte in Mauna Loa op Hawaii in september het hoogste punt sinds miljoenen jaren, denken onderzoekers. <a href=\"https:\/\/www.arnoschrauwers.nl\/weblog\/30\/09\/2016\/7522\/\">Lees verder <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[91,90,272],"tags":[274,4936],"class_list":["post-7522","post","type-post","status-publish","format-standard","hentry","category-aardopwarming","category-klimaat","category-kooldioxide","tag-hawaii","tag-mauna-loa"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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