{"id":137550,"date":"2025-02-17T07:50:42","date_gmt":"2025-02-17T05:50:42","guid":{"rendered":"https:\/\/tietopankki.crnet.fi\/fi\/news\/worlds-sea-ice-falls-to-record-low\/"},"modified":"2025-02-17T07:50:42","modified_gmt":"2025-02-17T05:50:42","slug":"worlds-sea-ice-falls-to-record-low","status":"publish","type":"post","link":"https:\/\/tietopankki.crnet.fi\/fi\/news\/worlds-sea-ice-falls-to-record-low\/","title":{"rendered":"World\u2019s sea-ice falls to record low"},"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\/137550\" \/>\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\">\n<p>The world&#8217;s frozen oceans, which help to keep the planet cool, currently have less ice than ever previously recorded, satellite data shows. Sea-ice around the north and south poles acts like a giant mirror by reflecting much of the Sun&#8217;s energy back into space. But as rising temperatures cause this bright layer to shrink, the dark ocean below can absorb more heat, warming the planet further. This latest sea-ice low appears to have been driven by a combination of warm air, warm seas and winds breaking apart the ice.<\/p>\n<p>Over the 5 days to 13 February, the combined extent of Arctic and Antarctic sea-ice was 15.76 million sq km (6.08 million sq miles), according to BBC analysis of data from the US National Snow and Ice Data Center (NSIDC). This breaks the previous 5-day record low of 15.93 million sq km (6.15 million sq miles) from January-February 2023. Multiple line chart showing daily sea-ice extent for Antarctica and the Arctic combined. Each line is a year, with 2025 line breaking a record low on latest data of 13 February, breaking the previous record set in 2023. Arctic sea-ice is currently at its smallest recorded extent for the time of year, while Antarctic sea-ice is close to a new low in satellite records going back to the late 1970s.<\/p>\n<p>The decline of Arctic sea-ice in response to a warming planet is well-established. Its end-of-summer extent fell from an average of 7 million sq km in the 1980s to 4.5 million sq km in the 2010s. But until the mid-2010s, Antarctic sea-ice had been remarkably resilient, defying predictions that it would shrink. Since then, Antarctica has shown a series of very low sea-ice extents, although there is still lots of natural variability. &#8221;Every year, every data point that we get suggests that this isn&#8217;t a temporary shift, but something more permanent, like what we&#8217;ve seen in the Arctic,&#8221; Walter Meier, senior research scientist at NSIDC, told BBC News. &#8221;It is indicating that the Antarctic has moved into a new regime of lower ice extents.&#8221;<\/p>\n<p>Antarctic sea-ice is relatively thin and mobile &#8211; being surrounded by ocean rather than continents like the Arctic &#8211; so it can be particularly sensitive to winds breaking up the ice. But warmer air and warmer waters look to have played a key role in this latest 2025 low, towards the end of the southern hemisphere summer. The Antarctic ice-shelves \u2013 ice flowing off the Antarctic continent, rather than sea-ice \u2013 appear to have had a particularly extreme season of surface melting, driven by high air temperatures. &#8221;Atmospheric conditions in December and January looked like they were strongly promoting surface melting on the ice-shelves,&#8221; said Tom Bracegirdle, research scientist at the British Antarctic Survey. &#8221;That could also have contributed to what we&#8217;ve seen in Antarctic sea-ice, and ongoing ocean warming is setting the backdrop to all of this as well.&#8221;<\/p>\n<p>Antarctica&#8217;s record sea-ice low of 2023 would have been a one-in-2,000 year event without climate change, according to a recent study. Yet 2025 is not far from eclipsing it. Two multiple line charts showing daily sea-ice extent for the Arctic on one side, and Antarctica on the other side. Each line is a year, with 2025 line breaking a record daily low for the Arctic for the time of year, and just shy of the 2023 record daily low for Antarctica. At the other end of the planet, the Arctic should be reaching its annual maximum, with cold winter temperatures helping the oceans to freeze over. But current sea-ice extent is nearly 0.2 million sq km below anything previously recorded for the time of year, and has been tracking very low since late 2024.<\/p>\n<p><a rel=\"noopener\" href=\"https:\/\/www.bbc.com\/news\/articles\/cvgeydkz08go\">Read more&gt;&gt;<\/a><\/p>\n<p>Source: <a rel=\"noopener\" href=\"https:\/\/www.bbc.com\/news\/articles\/cvgeydkz08go\">BBC<\/a><\/p>\n<\/div>\n<p>The post <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\/environmental-news-en\/worlds-sea-ice-falls-to-record-low\/\">World\u2019s sea-ice falls to record low<\/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":[575,17971,17972],"class_list":["post-137550","post","type-post","status-publish","format-standard","hentry","category-news","tag-environmental-news-en","tag-to-record-low","tag-worlds-sea-ice"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts\/137550","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=137550"}],"version-history":[{"count":0,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/posts\/137550\/revisions"}],"wp:attachment":[{"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/media?parent=137550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/categories?post=137550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/fi\/wp-json\/wp\/v2\/tags?post=137550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}