{"id":30815,"date":"2025-06-30T21:09:28","date_gmt":"2025-06-30T21:09:28","guid":{"rendered":"http:\/\/medexperts.pro\/?p=30815"},"modified":"2025-06-30T21:25:16","modified_gmt":"2025-06-30T21:25:16","slug":"near-antarctica-saltier-seas-mean-less-ice-study-finds","status":"publish","type":"post","link":"https:\/\/medexperts.pro\/?p=30815","title":{"rendered":"Near Antarctica, Saltier Seas Mean Less Ice, Study Finds"},"content":{"rendered":"
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Briny warm water is mixing on the surface of the ocean, making sea ice melt faster, a new study found.<\/p>\n

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Some of the water around Antarctica has been getting saltier. And that has affected the amount of sea ice at the bottom of the planet.<\/p>\n

A study published Monday in the Proceedings of the National Academy of Sciences found that increases in salinity in seawater near the surface could help explain some of the decrease in Antarctic sea ice that have been observed over the past decade, reversing a previous period of growth.<\/p>\n

\u201cThe impact of Antarctic ice is massive in terms of sea-level rise, in terms of global warming, and therefore, in terms of extremes,\u201d said Alessandro Silvano, a senior scientist at the University of Southampton studying the Southern Ocean and lead author of the study. The findings mean \u201cwe are entering a new system, a new world,\u201d he said.<\/p>\n

Each year, the sea ice floating atop the Earth\u2019s polar oceans melts in the summer and refreezes in the winter, acting as a mirror that bounces the sun\u2019s heat back into space. Since the late 1970s, as global temperatures ratcheted upward<\/a>, sea ice in the Arctic has been swiftly declining. But in the Antarctic sea ice continued to grow into the 2010s.<\/p>\n<\/div>\n<\/div>\n

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The study used data from satellites to track changes by using a brightness measurement that subtly correlates to salt content. But because the signal is small and easily drowned out by other factors, Dr. Silvano said, it wasn\u2019t possible analyze them effectively until recent advances in algorithms.<\/p>\n

When Dr. Silvano and his coauthors first noticed the rising salinity, they doubted the signal was real, suspecting an error in the satellite data. But as physical measurements from ocean instruments began to confirm the trend, they realized the signal was accurate.<\/p>\n

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Briny warm water is mixing on the surface of the ocean, making sea ice melt faster, a new study found.Some of the water around Antarctica has been getting saltier. And that has affected the amount of sea ice at the bottom of the planet.A study published Monday in the Proceedings of the National Academy of Sciences found that increases in salinity in seawater near the surface could help explain some of the decrease in Antarctic sea ice that have been observed over the past decade, reversing a previous period of growth.\u201cThe impact of Antarctic ice is massive in terms of sea-level rise, in terms of global warming, and therefore, in terms of extremes,\u201d said Alessandro Silvano, a senior scientist at the University of Southampton studying the Southern Ocean and lead author of the study. The findings mean \u201cwe are entering a new system, a new world,\u201d he said.Each year, the sea ice floating atop the Earth\u2019s polar oceans melts in the summer and refreezes in the winter, acting as a mirror that bounces the sun\u2019s heat back into space. Since the late 1970s, as global temperatures ratcheted upward, sea ice in the Arctic has been swiftly declining. But in the Antarctic sea ice continued to grow into the 2010s.The study used data from satellites to track changes by using a brightness measurement that subtly correlates to salt content. But because the signal is small and easily drowned out by other factors, Dr. Silvano said, it wasn\u2019t possible analyze them effectively until recent advances in algorithms.When Dr. Silvano and his coauthors first noticed the rising salinity, they doubted the signal was real, suspecting an error in the satellite data. But as physical measurements from ocean instruments began to confirm the trend, they realized the signal was accurate.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and\u00a0log into\u00a0your Times account, or\u00a0subscribe\u00a0for all of The Times.Thank you for your patience while we verify access.Already a subscriber?\u00a0Log in.Want all of The Times?\u00a0Subscribe.<\/p>\n","protected":false},"author":1,"featured_media":30817,"comment_status":"close","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-30815","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"_links":{"self":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts\/30815","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30815"}],"version-history":[{"count":2,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts\/30815\/revisions"}],"predecessor-version":[{"id":30818,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/posts\/30815\/revisions\/30818"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=\/wp\/v2\/media\/30817"}],"wp:attachment":[{"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medexperts.pro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}