/newsroom/taxonomy/term/200/all en /newsroom/channels/news/sea-level-rise-rapid-and-unstoppable-unless-paris-agreement-targets-met-330786 <p><em>Image Caption: The Mackenzie River Delta on the Beaufort Sea, a low-lying region in the Canadian Arctic that is vulnerable to rising seas in a warming climate. CREDIT: Nadia and Harold Gomez</em></p> Mon, 03 May 2021 16:53:57 +0000 katherine.gombay@mcgill.ca 263032 at /newsroom /newsroom/channels/news/making-antarctica-265483 <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> Tue, 31 Jan 2017 18:20:06 +0000 priya.pajel@mail.mcgill.ca 26665 at /newsroom /newsroom/channels/news/sea-ice-extent-arctic-and-antarctic-reached-record-lows-november-264682 <p>“Both the Arctic and Antarctic experienced record lows in sea ice extent in November, with scientists astonished to see Arctic ice actually retreating at a time when the region enters the cold darkness of winter.” (<em><a href="https://www.theguardian.com/environment/2016/dec/06/arctic-antarctic-ice-melt-november-record">The Guardian</a></em>) (<a href="https://nsidc.org/arcticseaicenews/2016/12/arctic-and-antarctic-at-record-low-levels/">National Snow & Ice Data Center</a>)</p> Wed, 07 Dec 2016 19:27:17 +0000 priya.pajel@mail.mcgill.ca 26477 at /newsroom /newsroom/channels/news/nearing-limits-life-earth-257865 <p><em><strong>By Katherine Gombay, </strong><strong><a href="/newsroom/">ƻ����Ժ Newsroom</a></strong></em></p> <p><em>Failure to find active microbes in coldest Antarctic soils has implications for search for life on Mars</em></p> Mon, 18 Jan 2016 17:11:06 +0000 nima.adibpour@mail.mcgill.ca 25096 at /newsroom /newsroom/channels/news/global-warming-felt-deepest-reaches-ocean-233810 <p> Mon, 03 Mar 2014 16:30:07 +0000 christopher.chipello@mcgill.ca 19779 at /newsroom