/channels/news_feeds/all/term/antarctica/rss en /channels/channels/news/expert-giant-iceberg-breaks-antarctica-268927 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>"One of the biggest icebergs on record has broken away from Antarctica, scientists said on Wednesday, creating an extra hazard for ships around the continent as it breaks up." (<a href="http://www.cbc.ca/news/technology/giant-iceberg-breaks-off-antarctica-1.4200787">CBC</a>)</p></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">Published: </span><span class="day">12 </span><span class="month">July </span><span class="year">2017</span></div></div></div></div></div> Wed, 12 Jul 2017 14:45:52 +0000 webfull 129225 at /channels /channels/news/making-antarctica-265483 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>One of the big mysteries in the scientific world is how the ice sheets of Antarctica formed so rapidly about 34 million years ago, at the boundary between the Eocene and Oligocene epochs.</p> <p>There are 2 competing theories:</p> <p>The first explanation is based on <strong>global climate change</strong>: Scientists have shown that atmospheric carbon dioxide levels declined steadily since the beginning of the Cenozoic Era, 66 million years ago. Once CO2 dropped below a critical threshold, cooler global temperatures allowed the ice sheets of Antarctica to form.</p></div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/halverson1.jpg?itok=pDel-Uvd" width="160" height="107" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">Published: </span><span class="day">31 </span><span class="month">January </span><span class="year">2017</span></div></div></div></div></div> Tue, 31 Jan 2017 18:20:08 +0000 webfull 124550 at /channels /channels/news/geophysics-could-slow-antarctic-ice-retreat-256655 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p> Gravitational effects, variations in Earth structure could damp rise in global sea levels</div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/antartica_nasa.jpg?itok=MZzZ9JK8" width="160" height="90" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">Published: </span><span class="day">10 </span><span class="month">November </span><span class="year">2015</span></div></div></div></div></div> Tue, 10 Nov 2015 15:18:01 +0000 webfull 113873 at /channels