{"id":15481,"date":"2021-06-29T05:17:21","date_gmt":"2021-06-29T04:17:21","guid":{"rendered":"http:\/\/www.on4cn.be\/blog_radio\/?p=15481"},"modified":"2021-06-29T05:17:21","modified_gmt":"2021-06-29T04:17:21","slug":"lantarctique-en-crise-climatique","status":"publish","type":"post","link":"http:\/\/www.on4cn.be\/blog_radio\/2021\/06\/29\/lantarctique-en-crise-climatique\/","title":{"rendered":"L’Antarctique en crise climatique"},"content":{"rendered":"
\n
Antarctic in climate crisis despite Treaty<\/span><\/strong><\/center><\/p>\n

When the Antarctic Treaty<\/strong> came into effect 60 years ago<\/strong>, its signatories had little idea how successful it would be. World leaders agreed to leave an uninhabited continent twice the size of Australia free from war, weapons and nuclear waste.
\nAt that time, they declared that Southern Polar region<\/strong>, which is 98% ice and does not have an indigenous population, should belong to no Country and instead, be devoted to collaborative science. In the following decades, extra rules to stop companies mining minerals and drilling for oil turned Antarctica into the biggest nature reserve in the world.<\/p>\n

\"\"Now climate change is undermining that success story. About 90% of the world\u2019s surface fresh water is locked up in the Antarctic Ice Sheet and, as the planet heats up, glaciers whose collapse would deluge coastal cities from New York to Jakarta are melting and growing less stable.<\/p>\n

World leaders have pledged to limit warming to well below 2 degrees Celsius this century, but their current policies will heat the world by almost 3 Degree Celcius, according to Germany-based research group Climate Action Tracker. A study published in the journal Nature in May found that a global temperature rise of 3 C would lead to an \u201cabrupt jump\u201d in the pace of Antarctic ice loss that would, in turn, trigger \u201crapid and unstoppable\u201d sea-level rise.<\/p>\n

A second study, published in June in the journal Science Advances, found that an ice shelf that supports the 175,000-square-km (68,000-square-mile) Pine Island Glacier is breaking up into the water faster and faster. The glacier is responsible for more than a quarter of Antarctica\u2019s contribution to global sea level rise and will melt faster if it collapses into warm waters. \u201cIf the ice shelf\u2019s rapid retreat continues, it could further destabilise the glacier far sooner than would be expected<\/em>\u201d the authors wrote.<\/p>\n

Read more at: https:\/\/www.dtnext.in\/News\/World\/2021\/06\/24035915\/1302682\/Antarctic-in-climate-crisis-despite-treaty.vpf <\/a><\/p>\n

<\/p>\n

Version traduite en Fran\u00e7ais via Google Translate<\/span><\/b><\/center>
\n
L’Antarctique en crise climatique malgr\u00e9 le Trait\u00e9<\/span><\/b><\/center><\/p>\n

Lorsque le Trait\u00e9 sur l’Antarctique<\/strong> est entr\u00e9 en vigueur il y a 60 ans<\/strong>, ses signataires n’avaient aucune id\u00e9e de son succ\u00e8s. Les dirigeants mondiaux ont convenu de laisser un
\ncontinent inhabit\u00e9 deux fois plus grand que l’Australie, exempt de guerre, d’armes et de d\u00e9chets nucl\u00e9aires.
\n\u00c0 cette \u00e9poque, ils ont d\u00e9clar\u00e9 que la r\u00e9gion polaire australe<\/strong>, qui est constitu\u00e9e \u00e0 98 % de glace et n’a pas de population indig\u00e8ne, ne devrait appartenir \u00e0 aucun pays et \u00eatre plut\u00f4t consacr\u00e9e \u00e0
\nscience collaborative. Au cours des d\u00e9cennies suivantes, des r\u00e8gles suppl\u00e9mentaires visant \u00e0 emp\u00eacher les entreprises d’exploiter des min\u00e9raux et de forer du p\u00e9trole ont transform\u00e9 l’Antarctique en la plus grande r\u00e9serve naturelle du monde.<\/p>\n

\"\"
\nAujourd’hui, le changement climatique compromet cette r\u00e9ussite. Environ 90 % de l’eau douce de surface du monde est emprisonn\u00e9e dans la calotte glaciaire de l’Antarctique et, \u00e0 mesure que la plan\u00e8te se r\u00e9chauffe, les glaciers dont
\nl’effondrement inonderait les villes c\u00f4ti\u00e8res de New York \u00e0 Jakarta fondent et deviennent de moins en moins stables.<\/p>\n

Les dirigeants mondiaux se sont engag\u00e9s \u00e0 limiter le r\u00e9chauffement bien en dessous de 2 degr\u00e9s Celsius ce si\u00e8cle, mais leurs politiques actuelles chaufferont le monde de pr\u00e8s de 3 degr\u00e9s Celsius, selon l’Allemagne.
\ngroupe de recherche bas\u00e9 sur Climate Action Tracker. Une \u00e9tude publi\u00e9e dans la revue Nature en mai a r\u00e9v\u00e9l\u00e9 qu’une augmentation de la temp\u00e9rature mondiale de 3 \u00b0C entra\u00eenerait un \u00ab saut brusque \u00bb dans le rythme de
\nUne perte de glace en Antarctique qui, \u00e0 son tour, d\u00e9clencherait une \u00e9l\u00e9vation \u00ab rapide et imparable \u00bb du niveau de la mer.<\/p>\n

Une deuxi\u00e8me \u00e9tude, publi\u00e9e en juin dans la revue Science Advances, a r\u00e9v\u00e9l\u00e9 qu’une plate-forme de glace qui supporte le glacier Pine Island de 175 000 km2 (68 000 milles carr\u00e9s) est en train de se briser.
\ndans l’eau de plus en plus vite. Le glacier est responsable de plus d’un quart de la contribution de l’Antarctique \u00e0 l’\u00e9l\u00e9vation mondiale du niveau de la mer et fondra plus rapidement s’il s’effondre dans un climat chaud
\ndes eaux. \u00ab Si le retrait rapide de la banquise se poursuit, cela pourrait d\u00e9stabiliser davantage le glacier bien plus t\u00f4t que pr\u00e9vu<\/em> \u00bb, ont \u00e9crit les auteurs.<\/p>\n

Lire la suite sur: https:\/\/www.dtnext.in\/News\/World\/2021\/06\/24035915\/1302682\/Antarctic-in-climate-crisis-despite-treaty.vpf <\/a><\/p>\n

Info de la Source Publi\u00e9 * ICI<\/span><\/b><\/a><\/p>\n<\/article>\n","protected":false},"excerpt":{"rendered":"

Antarctic in climate crisis despite Treaty 26 Giugno 2021 When the Antarctic Treaty came into effect 60 years ago, its signatories had little idea how successful it would be. World leaders agreed to leave an uninhabited continent twice the size of Australia free from war, weapons and nuclear waste. At that time, they declared that … Continuer la lecture de « L’Antarctique en crise climatique »<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,24,25],"tags":[],"class_list":["post-15481","post","type-post","status-publish","format-standard","hentry","category-info","category-trafic-radio","category-trafic-radioamatuer"],"_links":{"self":[{"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/posts\/15481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/comments?post=15481"}],"version-history":[{"count":0,"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/posts\/15481\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/media?parent=15481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/categories?post=15481"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.on4cn.be\/blog_radio\/wp-json\/wp\/v2\/tags?post=15481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}