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The continent of Antarctica is so cold that it has supported only 2 vascular plants for millions of years, and its flora presently consists of around 250 lichens, 100 mosses, 25–30 liverworts, and around 700 terrestrial and aquatic algal species, which live on the areas of exposed rock and soil around the shore of the continent.
Nearly all of Antarctica is covered by a sheet of ice that is, on average, at least 1,500 m (5,000 ft) thick. Antarctica contains 90% of the world's ice and more than 70% of its fresh water. If all the land-ice covering Antarctica were to melt — around 30 × 10 ^ 6 km 3 (7.2 × 10 ^ 6 cu mi) of ice — the seas would rise by over 60 m (200 ft ...
December 21, 2024 at 10:00 AM ... “Perennially ice-covered freshwater ecosystems are hotspots of biodiversity in Antarctica’s polar deserts, providing a year-round oasis for microbial life ...
The wildlife of Antarctica are extremophiles, having adapted to the dryness, low temperatures, and high exposure common in Antarctica. The extreme weather of the interior contrasts to the relatively mild conditions on the Antarctic Peninsula and the subantarctic islands , which have warmer temperatures and more liquid water.
December 8, 2024 at 10:00 PM. ... ecosystem destruction and severe weather – would lead to catastrophic ... Antarctica’s ‘Doomsday Glacier’ Is Melting Away Differently Than Scientists ...
Nearly 300 people work for the British Antarctic Survey (BAS) in Antarctica across five research stations and on the RRS David Attenborough. ... December 8, 2024 at 7:01 PM.
McMurdo Dry Valleys, Landsat 7 imagery acquired on December 18, 1999. The Dry Valleys are so named because of their extremely low humidity and lack of snow or ice cover. They are also dry because, in this location, the mountains are sufficiently high that they block seaward-flowing ice from the East Antarctic Ice Sheet from reaching the Ross ...
The largest Antarctic subglacial lakes are clustered in the Dome C-Vostok area of East Antarctica, possibly due to the thick insulating ice and rugged, tectonically influenced subglacial topography. In West Antarctica, subglacial Lake Ellsworth is situated within the Ellsworth Mountains and is relatively small and shallow. [38]