{"id":31772,"date":"2024-01-18T11:47:32","date_gmt":"2024-01-18T10:47:32","guid":{"rendered":"https:\/\/deepseareporter.dev.phosdev.se\/?p=31772"},"modified":"2025-03-03T11:06:50","modified_gmt":"2025-03-03T10:06:50","slug":"gronlandsisen-smalter-snabbare-an-forskare-trott","status":"publish","type":"post","link":"https:\/\/deepseareporter.dev.phosdev.se\/sv\/gronlandsisen-smalter-snabbare-an-forskare-trott\/","title":{"rendered":"Gr\u00f6nlandsisen sm\u00e4lter snabbare \u00e4n forskare trott"},"content":{"rendered":"\n

Gr\u00f6nland tappar n\u00e4rmare 30 miljoner ton is \u2013 varje timme. Enligt forskarna bakom en ny studie kan det inneb\u00e4ra att Gr\u00f6nlands ist\u00e4cke har n\u00e5tt en o\u00e5terkallelig brytpunkt.<\/strong><\/p>\n\n\n\n

\"\"
Gr\u00f6nlands ist\u00e4cke sm\u00e4lter i snabbare takt \u00e4n forskarna tidigare ber\u00e4knat. Foto: Martina Holmberg\/TT arkivbild.<\/figcaption><\/figure>\n\n\n\n

De nya r\u00f6nen inneb\u00e4r det att Gr\u00f6nland f\u00f6rlorar 20 procent mer is \u00e4n tidigare ber\u00e4kningar visat. Totalt ber\u00e4knas \u00f6ver 1 000 gigaton is ha f\u00f6rsvunnit de senaste 40 \u00e5ren.<\/p>\n\n\n\n

– F\u00f6r\u00e4ndringarna p\u00e5 Gr\u00f6nland \u00e4r kolossala och de h\u00e4nder \u00f6verallt \u2013 n\u00e4stan alla glaci\u00e4rer har minskat under de senaste decennierna, s\u00e4ger Chad Greene fr\u00e5n den amerikanska rymdstyrelsen Nasas Jet Propulsion Laboratory, som har lett studien, till AFP.<\/p>\n\n\n\n

Flera forskare \u00e4r nu oroliga f\u00f6r att den \u00f6kade m\u00e4ngden f\u00e4rskvatten som rinner in i Nordatlanten kan leda till en kollaps av hela systemet av havsstr\u00f6mmar i norra Atlanten, den s\u00e5 kallade storskaliga cirkulationen i Atlanten (Atlantic meridional overturning circulation, AMOC).<\/p>\n\n\n\n

Om havsstr\u00f6mmarna kollapsar, f\u00e5r det f\u00f6r\u00f6dande konsekvenser f\u00f6r m\u00e4nskligheten, skriver forskarna.<\/p>\n\n\n\n

Studien publicerades i tidskriften\u00a0Nature<\/a>, som skriver att AI-teknik har anv\u00e4nts f\u00f6r att kartl\u00e4gga 235\u00a0000 glaci\u00e4rer med hj\u00e4lp av satellitbilder tagna mellan 1985 och 2022.<\/p>\n","protected":false},"excerpt":{"rendered":"

Gr\u00f6nland tappar n\u00e4rmare 30 miljoner ton is \u2013 varje timme. Enligt forskarna bakom en ny studie kan det inneb\u00e4ra att Gr\u00f6nlands ist\u00e4cke har n\u00e5tt en o\u00e5terkallelig brytpunkt.<\/p>\n","protected":false},"author":4,"featured_media":31773,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[244],"tags":[1760,1759,339],"class_list":["post-31772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-klimat-och-miljo","tag-forskare","tag-gronlandsisen","tag-klimatforandringar"],"acf":[],"yoast_head":"\nGr\u00f6nlandsisen sm\u00e4lter snabbare \u00e4n forskare trott - Deep Sea Reporter<\/title>\n<meta name=\"description\" content=\"Gr\u00f6nland tappar n\u00e4rmare 30 miljoner ton is \u2013 varje timme. 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