{"id":157868,"date":"2022-09-14T18:14:27","date_gmt":"2022-09-14T16:14:27","guid":{"rendered":"https:\/\/legrandcontinent.eu\/fr\/?p=157868"},"modified":"2022-09-14T18:41:24","modified_gmt":"2022-09-14T16:41:24","slug":"selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux","status":"publish","type":"post","link":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/","title":{"rendered":"Un r\u00e9chauffement au-del\u00e0 d&rsquo;1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>Les points de basculement climatique occurrent lorsque le r\u00e9chauffement de la plan\u00e8te produit des changements dans de grandes parties du syst\u00e8me climatique qui finissent par s\u2019auto-perp\u00e9tuer au-del\u00e0 d\u2019un certain seuil. Dans un article publi\u00e9 en 2008 qui sert aujourd\u2019hui de r\u00e9f\u00e9rence, des chercheurs identifiaient pour la premi\u00e8re fois plusieurs de ces points de basculement&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-1-157868' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#easy-footnote-bottom-1-157868' title='Lenton, T. M., Held, H., Kriegler, E., Hall, J. W., Lucht, W., Rahmstorf, S., &amp;amp; Schellnhuber, H. J. (2008), \u00ab&amp;#160;&lt;a href=&quot;https:\/\/www.pnas.org\/doi\/10.1073\/pnas.0705414105&quot;&gt;Tipping elements in the Earth&amp;rsquo;s climate system&lt;\/a&gt;&amp;#160;\u00bb, &lt;em&gt;Proceedings of the National Academy of Sciences&lt;\/em&gt;, &lt;em&gt;105&lt;\/em&gt;(6), 1786-1793.'><sup>1<\/sup><\/a><\/span><\/span>.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u2019article paru r\u00e9cemment dans la revue <em>Science <\/em>consiste en une r\u00e9\u00e9valuation, mise \u00e0 jour, de plusieurs points de basculement climatique identifi\u00e9s en 2008. Selon eux, cinq points de bascule ont peut-\u00eatre d\u00e9j\u00e0 \u00e9t\u00e9 franchis et six autres deviennent probables dans la fourchette pr\u00e9vue par l\u2019Accord de Paris, \u00e0 savoir de limiter le r\u00e9chauffement climatique entre 1.5 et 2\u00b0 C&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-2-157868' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#easy-footnote-bottom-2-157868' title='Armstrong McKay, David I., Staal, Arie, Abrams, Jesse F., &lt;em&gt;et al., &lt;\/em&gt;\u00ab&amp;#160;&amp;nbsp; &lt;a href=&quot;https:\/\/www.science.org\/doi\/10.1126\/science.abn7950&quot;&gt;Exceeding 1.5\u00b0 C global warming could trigger multiple climate tipping points&lt;\/a&gt;&amp;#160;\u00bb, &lt;em&gt;Science&lt;\/em&gt;, 2022, vol. 377, no 6611.'><sup>2<\/sup><\/a><\/span><\/span>.<\/li>\n<\/ul>\n\n\n\n<div class=\"iframe-container wp-block-image wp-block-image-medium  iframe-dw\">\n\t<div>\n\t\t<iframe class=\"absolute w-full h-full pin-t pin-l\" title=\"titolo\" aria-label=\"Interactive line chart\" src=\"\/\/datawrapper.dwcdn.net\/jG5Ok\/4\/\" scrolling=\"no\" frameborder=\"0\"><\/iframe>\n\t<\/div>\n<\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Parmi les points de basculement qui ont peut-\u00eatre d\u00e9j\u00e0 \u00e9t\u00e9 franchis on retrouve l\u2019effondrement de la calotte glaciaire du Groenland et de l\u2019Antarctique, le d\u00e9p\u00e9rissement des r\u00e9cifs coralliens \u00e0 basse latitude et l\u2019affaiblissement des puits de carbone terrestre, qui capturent les \u00e9missions de CO2.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pour leur m\u00e9thodologie, les chercheurs ont r\u00e9parti les points de basculement climatiques en plusieurs cat\u00e9gories en fonction de l\u2019\u00e9chelle, de la probabilit\u00e9 du basculement et de leur lin\u00e9arit\u00e9.&nbsp;<\/li>\n<\/ul>\n\n\n\n<div class=\"iframe-container wp-block-image wp-block-image-medium  iframe-dw\">\n\t<div>\n\t\t<iframe class=\"absolute w-full h-full pin-t pin-l\" title=\"titolo\" aria-label=\"Interactive line chart\" src=\"\/\/datawrapper.dwcdn.net\/nXrWt\/1\/\" scrolling=\"no\" frameborder=\"0\"><\/iframe>\n\t<\/div>\n<\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les auteurs de l\u2019\u00e9tude pr\u00e9cisent bien que ce n\u2019est pas \u00ab&#160;parce que nous allons probablement atteindre certains points de basculement que tout est perdu et que les jeux sont faits. Chaque fraction de degr\u00e9 que nous arr\u00eatons au-del\u00e0 de 1,5\u00b0C r\u00e9duit la probabilit\u00e9 de toucher d&rsquo;autres points de basculement&#160;\u00bb&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-3-157868' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#easy-footnote-bottom-3-157868' title='Damian Carrington, \u00ab&amp;#160;&lt;a href=&quot;https:\/\/www.theguardian.com\/environment\/2022\/sep\/08\/world-on-brink-five-climate-tipping-points-study-finds&quot;&gt;World on brink of five \u2018disastrous\u2019 climate tipping points, study finds&lt;\/a&gt;&amp;#160;\u00bb, &lt;em&gt;The Guardian&lt;\/em&gt;, 8 septembre 2022.'><sup>3<\/sup><\/a><\/span><\/span>.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hier, la publication d\u2019un rapport r\u00e9alis\u00e9 par plusieurs agences de l\u2019ONU, coordonn\u00e9 par l\u2019Organisation m\u00e9t\u00e9orologique mondiale (OMM) notait que \u00ab&#160;la science du climat est claire&#160;: nous allons dans la mauvaise direction&#160;\u00bb&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-4-157868' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#easy-footnote-bottom-4-157868' title='&lt;a href=&quot;https:\/\/library.wmo.int\/index.php?lvl=notice_display&amp;amp;id=22128#.YyHqbXZBw1K&quot;&gt;United In Science 2022&amp;#160;: A multi-organization high-level compilation of the most recent science related to climate change, impacts and responses&lt;\/a&gt;, Organisation m\u00e9t\u00e9orologique mondiale, septembre 2022.'><sup>4<\/sup><\/a><\/span><\/span>. Une action beaucoup plus ambitieuse est n\u00e9cessaire pour limiter les impacts physiques et socio-\u00e9conomiques du changement climatique qui ont d\u00e9j\u00e0 <a href=\"https:\/\/legrandcontinent.eu\/fr\/2022\/08\/29\/des-inondations-devastatrices-au-pakistan-affectent-plus-de-30-millions-de-personnes\/\">un effet d\u00e9vastateur<\/a>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Une r\u00e9cente \u00e9tude publi\u00e9e dans la revue <em>Science<\/em> indique que le monde serait au bord de plusieurs points de basculement climatique provoqu\u00e9s par un r\u00e9chauffement de la temp\u00e9rature globale. Ces \u00ab&#160;&#160;points de basculement&#160;&#160;\u00bb correspondent \u00e0 des changements du syst\u00e8me climatique qui peuvent s\u2019av\u00e9rer \u00eatre irr\u00e9versibles.<\/p>\n","protected":false},"author":2622,"featured_media":157869,"comment_status":"open","ping_status":"open","sticky":false,"template":"templates\/post-briefings.php","format":"standard","meta":{"_acf_changed":false,"_trash_the_other_posts":false,"footnotes":""},"categories":[1730],"tags":[],"staff":[],"editorial_format":[],"serie":[],"audience":[],"geo":[2163],"class_list":["post-157868","post","type-post","status-publish","format-standard","hentry","category-energie-et-environnement","geo-monde"],"acf":{"open_in_webview":false,"accent":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Un r\u00e9chauffement au-del\u00e0 d&#039;1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux | Le Grand Continent<\/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:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un r\u00e9chauffement au-del\u00e0 d&#039;1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux | Le Grand Continent\" \/>\n<meta property=\"og:description\" content=\"Une r\u00e9cente \u00e9tude publi\u00e9e dans la revue Science indique que le monde serait au bord de plusieurs points de basculement climatique provoqu\u00e9s par un r\u00e9chauffement de la temp\u00e9rature globale. Ces \u00ab&#160;points de basculement&#160;\u00bb correspondent \u00e0 des changements du syst\u00e8me climatique qui peuvent s\u2019av\u00e9rer \u00eatre irr\u00e9versibles.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/\" \/>\n<meta property=\"og:site_name\" content=\"Le Grand Continent\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-14T16:14:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-14T16:41:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/climate-tipoff-GC.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1108\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Marin Saillofest\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/climate-tipoff-GC.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marin Saillofest\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/\",\"url\":\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/\",\"name\":\"Un r\u00e9chauffement au-del\u00e0 d'1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux | Le Grand Continent\",\"isPartOf\":{\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/SIPA_SIPAUSA31595183_000003-scaled.jpg\",\"datePublished\":\"2022-09-14T16:14:27+00:00\",\"dateModified\":\"2022-09-14T16:41:24+00:00\",\"author\":{\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/#\/schema\/person\/e4f85f52220fc7b4cc3cfdb86d88e833\"},\"breadcrumb\":{\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#primaryimage\",\"url\":\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/SIPA_SIPAUSA31595183_000003-scaled.jpg\",\"contentUrl\":\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/SIPA_SIPAUSA31595183_000003-scaled.jpg\",\"width\":2560,\"height\":1705,\"caption\":\"VIDEO AVAILABLE: CONTACT INFO@COVERMG.COM MATERIALS ONLY TO BE USED IN CONJUNCTION WITH ATTACHED EDITORIAL STORY. British research ship the RRS Sir David Attenborough has completed ice trials during its maiden voyage to Antarctica \u2013 a critical milestone in the commissioning of Britain\u2019s new polar ship. The trials are the first in a series to get the ship, which the British public originally named Boaty McBoatface in an online poll, ready for multi-disciplinary science missions. The purpose of ice trials is to test the ship\u2019s capability and performance cutting through ice. The trials team tested the ship\u2019s capability over 10 days in January by following a set of standard procedures to ensure the ship fulfils its contractual specifications to perform in ice. The ship was tested through ice, at every power level, to measure its performance and compare it to the expected, modelled results. The team also performed a range of other manoeuvres including reversing, turning, as well as impact tests at different speeds in areas of sea ice around the Antarctic Peninsula and Bellingshausen Sea. The team enlisted the help of satellites to locate suitable areas of ice for the trials. Most manoeuvres took place in fast ice \u2013 ice that is attached to the coast and not moving. This allowed the team to calculate accurately the amount of energy required to break the ice. Tests in various ice conditions and concentrations, such as open and closed pack ice, give a complete picture of the ship\u2019s performance. To fully understand the ship\u2019s performance, the trials team took measurements of the ice, including ice thickness and the amount of snow, as well as physical properties of the ice such as temperature and salinity. BAS\u2019 Ralph Stevens, Captain of RRS Sir David Attenborough, says: \u201cOverall, we\u2019re really pleased with the ship\u2019s performance in ice trials \u2013 in some trials it actually performed better tha\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/legrandcontinent.eu\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Un r\u00e9chauffement au-del\u00e0 d&rsquo;1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/#website\",\"url\":\"https:\/\/legrandcontinent.eu\/fr\/\",\"name\":\"Le Grand Continent\",\"description\":\"L&#039;\u00e9chelle pertinente\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/legrandcontinent.eu\/fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/#\/schema\/person\/e4f85f52220fc7b4cc3cfdb86d88e833\",\"name\":\"Marin Saillofest\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/legrandcontinent.eu\/fr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/87088698b4d967390c49ae6d4f1aa459?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/87088698b4d967390c49ae6d4f1aa459?s=96&d=mm&r=g\",\"caption\":\"Marin Saillofest\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Un r\u00e9chauffement au-del\u00e0 d'1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux | Le Grand Continent","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/","og_locale":"fr_FR","og_type":"article","og_title":"Un r\u00e9chauffement au-del\u00e0 d'1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux | Le Grand Continent","og_description":"Une r\u00e9cente \u00e9tude publi\u00e9e dans la revue Science indique que le monde serait au bord de plusieurs points de basculement climatique provoqu\u00e9s par un r\u00e9chauffement de la temp\u00e9rature globale. Ces \u00ab&#160;points de basculement&#160;\u00bb correspondent \u00e0 des changements du syst\u00e8me climatique qui peuvent s\u2019av\u00e9rer \u00eatre irr\u00e9versibles.","og_url":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/","og_site_name":"Le Grand Continent","article_published_time":"2022-09-14T16:14:27+00:00","article_modified_time":"2022-09-14T16:41:24+00:00","og_image":[{"width":1920,"height":1108,"url":"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/climate-tipoff-GC.jpg","type":"image\/jpeg"}],"author":"Marin Saillofest","twitter_card":"summary_large_image","twitter_image":"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/climate-tipoff-GC.jpg","twitter_misc":{"\u00c9crit par":"Marin Saillofest","Dur\u00e9e de lecture estim\u00e9e":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/","url":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/","name":"Un r\u00e9chauffement au-del\u00e0 d'1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux | Le Grand Continent","isPartOf":{"@id":"https:\/\/legrandcontinent.eu\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#primaryimage"},"image":{"@id":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#primaryimage"},"thumbnailUrl":"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/SIPA_SIPAUSA31595183_000003-scaled.jpg","datePublished":"2022-09-14T16:14:27+00:00","dateModified":"2022-09-14T16:41:24+00:00","author":{"@id":"https:\/\/legrandcontinent.eu\/fr\/#\/schema\/person\/e4f85f52220fc7b4cc3cfdb86d88e833"},"breadcrumb":{"@id":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#primaryimage","url":"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/SIPA_SIPAUSA31595183_000003-scaled.jpg","contentUrl":"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2022\/09\/SIPA_SIPAUSA31595183_000003-scaled.jpg","width":2560,"height":1705,"caption":"VIDEO AVAILABLE: CONTACT INFO@COVERMG.COM MATERIALS ONLY TO BE USED IN CONJUNCTION WITH ATTACHED EDITORIAL STORY. British research ship the RRS Sir David Attenborough has completed ice trials during its maiden voyage to Antarctica \u2013 a critical milestone in the commissioning of Britain\u2019s new polar ship. The trials are the first in a series to get the ship, which the British public originally named Boaty McBoatface in an online poll, ready for multi-disciplinary science missions. The purpose of ice trials is to test the ship\u2019s capability and performance cutting through ice. The trials team tested the ship\u2019s capability over 10 days in January by following a set of standard procedures to ensure the ship fulfils its contractual specifications to perform in ice. The ship was tested through ice, at every power level, to measure its performance and compare it to the expected, modelled results. The team also performed a range of other manoeuvres including reversing, turning, as well as impact tests at different speeds in areas of sea ice around the Antarctic Peninsula and Bellingshausen Sea. The team enlisted the help of satellites to locate suitable areas of ice for the trials. Most manoeuvres took place in fast ice \u2013 ice that is attached to the coast and not moving. This allowed the team to calculate accurately the amount of energy required to break the ice. Tests in various ice conditions and concentrations, such as open and closed pack ice, give a complete picture of the ship\u2019s performance. To fully understand the ship\u2019s performance, the trials team took measurements of the ice, including ice thickness and the amount of snow, as well as physical properties of the ice such as temperature and salinity. BAS\u2019 Ralph Stevens, Captain of RRS Sir David Attenborough, says: \u201cOverall, we\u2019re really pleased with the ship\u2019s performance in ice trials \u2013 in some trials it actually performed better tha"},{"@type":"BreadcrumbList","@id":"https:\/\/legrandcontinent.eu\/fr\/2022\/09\/14\/selon-une-etude-un-rechauffement-au-dela-d15c-declencherait-des-points-de-basculement-climatique-desastreux\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/legrandcontinent.eu\/fr\/"},{"@type":"ListItem","position":2,"name":"Un r\u00e9chauffement au-del\u00e0 d&rsquo;1,5\u00b0C d\u00e9clencherait des points de basculement climatique d\u00e9sastreux"}]},{"@type":"WebSite","@id":"https:\/\/legrandcontinent.eu\/fr\/#website","url":"https:\/\/legrandcontinent.eu\/fr\/","name":"Le Grand Continent","description":"L&#039;\u00e9chelle pertinente","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/legrandcontinent.eu\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/legrandcontinent.eu\/fr\/#\/schema\/person\/e4f85f52220fc7b4cc3cfdb86d88e833","name":"Marin Saillofest","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/legrandcontinent.eu\/fr\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/87088698b4d967390c49ae6d4f1aa459?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/87088698b4d967390c49ae6d4f1aa459?s=96&d=mm&r=g","caption":"Marin Saillofest"}}]}},"term_position_data":null,"_links":{"self":[{"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/posts\/157868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/users\/2622"}],"replies":[{"embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/comments?post=157868"}],"version-history":[{"count":0,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/posts\/157868\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/media\/157869"}],"wp:attachment":[{"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/media?parent=157868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/categories?post=157868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/tags?post=157868"},{"taxonomy":"staff","embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/staff?post=157868"},{"taxonomy":"editorial_format","embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/editorial_format?post=157868"},{"taxonomy":"serie","embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/serie?post=157868"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/audience?post=157868"},{"taxonomy":"geo","embeddable":true,"href":"https:\/\/legrandcontinent.eu\/fr\/wp-json\/wp\/v2\/geo?post=157868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}