{"id":115954,"date":"2023-08-08T09:10:40","date_gmt":"2023-08-08T06:10:40","guid":{"rendered":"https:\/\/tietopankki.crnet.fi\/fi\/news\/virtually-certain-extreme-antarctic-events-will-get-worse-without-drastic-action-scientists-warn\/"},"modified":"2023-08-08T09:10:40","modified_gmt":"2023-08-08T06:10:40","slug":"virtually-certain-extreme-antarctic-events-will-get-worse-without-drastic-action-scientists-warn","status":"publish","type":"post","link":"https:\/\/tietopankki.crnet.fi\/fi\/news\/virtually-certain-extreme-antarctic-events-will-get-worse-without-drastic-action-scientists-warn\/","title":{"rendered":"Virtually certain\u2019 extreme Antarctic events will get worse without drastic action, scientists warn"},"content":{"rendered":"<div class=\"mp_wrapper\">\n  <div class=\"mepr-unauthorized-message\">\n    <p>You are unauthorized to view this page.<\/p>\n  <\/div>\n  <div class=\"mepr-login-form-wrap\">\n            \n<div class=\"mp_wrapper mp_login_form\">\n                  <!-- mp-login-form-start -->     <form name=\"mepr_loginform\" id=\"mepr_loginform\" class=\"mepr-form\" action=\"https:\/\/tietopankki.crnet.fi\/fi\/login-2\/\" method=\"post\">\n            <div class=\"mp-form-row mepr_username\">\n        <div class=\"mp-form-label\">\n                              <label for=\"user_login\">Username<\/label>\n        <\/div>\n        <input type=\"text\" name=\"log\" id=\"user_login\" value=\"\" \/>\n      <\/div>\n      <div class=\"mp-form-row mepr_password\">\n        <div class=\"mp-form-label\">\n          <label for=\"user_pass\">Password<\/label>\n          <div class=\"mp-hide-pw\">\n            <input type=\"password\" name=\"pwd\" id=\"user_pass\" value=\"\" \/>\n            <button type=\"button\" class=\"button mp-hide-pw hide-if-no-js\" data-toggle=\"0\" aria-label=\"Show password\">\n              <span class=\"dashicons dashicons-visibility\" aria-hidden=\"true\"><\/span>\n            <\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n            <div>\n        <label><input name=\"rememberme\" type=\"checkbox\" id=\"rememberme\" value=\"forever\" \/> Remember Me<\/label>\n      <\/div>\n      <div class=\"mp-spacer\">&nbsp;<\/div>\n      <div class=\"submit\">\n        <input type=\"submit\" name=\"wp-submit\" id=\"wp-submit\" class=\"button-primary mepr-share-button \" value=\"Log In\" \/>\n        <input type=\"hidden\" name=\"redirect_to\" value=\"\/fi\/wp-json\/wp\/v2\/posts\/115954\" \/>\n        <input type=\"hidden\" name=\"mepr_process_login_form\" value=\"true\" \/>\n        <input type=\"hidden\" name=\"mepr_is_login_page\" value=\"false\" \/>\n      <\/div>\n    <\/form>\n    <div class=\"mp-spacer\">&nbsp;<\/div>\n    <div class=\"mepr-login-actions\">\n        <a\n          href=\"https:\/\/tietopankki.crnet.fi\/fi\/login-2\/?action=forgot_password\"\n          title=\"Click here to reset your password\"\n        >\n          Forgot Password        <\/a>\n    <\/div>\n\n      \n    <!-- mp-login-form-end --> \n  <\/div>\n      <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<div class=\"smart_content_wrapper\">\nIt is \u201cvirtually certain\u201d that future extreme events in Antarctica will be worse than the extraordinary changes already observed, according to a new scientific warning that stresses the case for immediate and drastic action to limit global heating. A new review draws together evidence on the vulnerability of Antarctic systems, highlighting recent extremes such as record low sea ice levels, the collapse of ice shelves, and surface temperatures up to 38.5C above average over East Antarctica in 2022 \u2013 the world\u2019s largest ever recorded heatwave.<\/p>\n<p>Records for Antarctic sea ice, which varies every year between a February minimum and a September maximum, \u201chave been tumbling in recent years\u201d, said study co-author Dr Caroline Holmes, a polar climate scientist at the British Antarctic Survey. \u201cOne clear metric of how things are changing is that the summer minimum has broken a new record three times in the past seven years,\u201d she said at a press briefing. Sea ice extent in July 2022 hit a record low for that time of year, but was surpassed by a new record this July \u2013 one that was \u201cthree times further away from the average than what we\u2019ve seen previously\u201d, Holmes said.<\/p>\n<p>Antarctic land ice \u2013 which contributes to sea level rise when it melts \u2013 has also declined since the 1990s, said Assoc Prof Anna Hogg of the University of Leeds, a study co-author. Between 1992 and 2020, the Antarctic and Greenland ice sheets have contributed a 2.1cm rise to the global mean sea level. The rate of ice sheet loss from Antarctica \u201cmatches the IPCC worst case\u201d for predicted ice loss under high greenhouse gas emissions scenarios, Hogg said. \u201cThe observations show we\u2019re tracking [along] the most extreme prediction of what might happen.\u201d This is despite global emissions currently tracking closer to an intermediate emissions pathway.<\/p>\n<p>Ice shelves, which fringe three-quarters of the Antarctic coastline, have also retreated in recent decades. Large sections of the Larsen-A, Larsen-B, and Wilkins ice shelves \u201ccollapsed catastrophically\u201d in 1995, 2002 and 2008 respectively, the study noted. Ten Antarctic ice shelves have also experienced major ice calving events since 2009.\u00a0 \u201cWe should be deeply concerned about the environment of Antarctica in the years that are coming under continued fossil fuel burning,\u201d said the study\u2019s lead author, Prof Martin Siegert of the University of Exeter. \u201cThis is the most extreme natural laboratory on the planet. Our ability to measure and observe is very difficult \u2026 but we really must try harder to understand the processes that are causing these extreme events and their interconnectivity.\u201d<\/p>\n<p>The study noted that given additional global heating of at least 0.4C was now unavoidable, to limit heating to 1.5C as per the Paris agreement, \u201cit is virtually certain that future Antarctic extreme events will be more pronounced than those observed to date\u201d. Prof Tim Naish, director of the Antarctic Research Centre at the Victoria University of Wellington, who was not involved in the research, said the increasing occurrence of extreme Antarctic events showed that \u201cthe policy response so far has been inadequate to address the climate crisis\u201d.<\/p>\n<p>\u201cAntarctica is experiencing more and more extreme events,\u201d he said in a statement. \u201cIn some cases we are getting dangerously close to tipping points, which once crossed will lead to irreversible change with unstoppable consequences for future generations.\u201d The research was published in the journal Frontiers in Environmental Science.<\/p>\n<p>Source: <a rel=\"noopener\" href=\"https:\/\/www.theguardian.com\/world\/2023\/aug\/08\/drastic-action-needed-to-limit-worsening-extreme-events-in-antarctica-scientists-warn\">The Guardian<\/a> <\/div>\n<p>The post <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\/vaufien\/virtually-certain-extreme-antarctic-events-will-get-worse-without-drastic-action-scientists-warn\/\">Virtually certain\u2019 extreme Antarctic events will get worse without drastic action, scientists warn<\/a> appeared first on <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\">Vastuullisuusuutiset.fi<\/a>.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[2903,1559,10980,1050,606,607,608],"class_list":["post-115954","post","type-post","status-publish","format-standard","hentry","category-news","tag-action","tag-antarctic","tag-drastic","tag-event","tag-vau_viikkokatsaus","tag-vauen","tag-vaufien"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts\/115954","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/comments?post=115954"}],"version-history":[{"count":0,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts\/115954\/revisions"}],"wp:attachment":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/media?parent=115954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/categories?post=115954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/tags?post=115954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}