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Antarctica may have up to 17,000 species; [108] while 90% of the ocean around Antarctica is deeper than 1,000 m (3,281 ft), only 30% of the benthic-sample locations were taken at that depth. [109] On the Antarctic continental shelves , bethnic-zone biomass may increase due to oceanic warming, which is likely to be of most benefit to seaweed .
Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of 1.9 km (1.2 mi). Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over 200 mm (8 in) along the coast and far less inland.
Antarctica is the largest ice desert in the world. Some 98% of Antarctica is covered by the Antarctic ice sheet , the world's largest ice sheet and also its largest reservoir of fresh water . Averaging at least 1.6 km thick, the ice is so massive that it has depressed the continental bedrock in some areas more than 2.5 km below sea level ...
Nearly 200 nations faced a Monday deadline to file what the United Nations' climate chief calls “among the most important policy documents governments will produce this century” — their ...
[7] In 1927, amateur historian John Gordon Hayes published Antarctica: A treatise on the Southern Continent, in which he concludes that Scott's over-complex transport arrangements had contributed to a disaster that could otherwise have been prevented, but this revelation had little public effect. [8]
He is currently an advocate for the protection of Antarctica and renewable energy. Swan is also the founder of 2041, a company which is dedicated to the preservation of the Antarctic [ 2 ] and the author with Gil Reavill of Antarctica 2041: My Quest to Save the Earth's Last Wilderness .
In Antarctica there are, in addition to mountaintops and nunataks, other natural snow- and ice-free areas often referred to as "Antarctic oases" or "dry valleys". [ 1 ] [ 2 ] These areas are surrounded by the Antarctic ice sheet or, in coastal areas, are situated between the ice sheet and the Antarctic ice shelves .
"We must not waste time and energy disputing the IPCC's report or debating the right machinery for making progress. The International Panel's work should be taken as our sign post: and the United Nations Environment Programme and the World Meteorological Organisation as the principal vehicles for reaching our destination."