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Tag: antarctic
Thinning and retreat of West Antarctic glacier began in 1940s
2016-11-23 13:00:00| LifeSciencesWorld
[NEWS] New research by an international team shows that the present thinning and retreat of Pine Island Glacier in West Antarctica is part of a climatically forced trend that was triggered in the 1940s. The team — made up of scientists from Lawrence Livermore National Laboratory, the British Antarctic Survey, University of Copenhagen, University of Alaska, Naval Postgraduate School, NASA Goddard Space Flight Center, Lamont-Doherty Earth Observatory of Columbia University, Universit…
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Endangered glaciers: Alpine ice begins Antarctic voyage
2016-09-05 18:00:00| Climate Ark Climate Change & Global Warming Newsfeed
BBC: More than 400 pieces of Alpine ice have been moved to a giant freezer - a first step in their journey to Antarctica. The seemingly strange plan to send ice to the coldest place on Earth is part of a scientific mission to "rescue" some of the world's most endangered glacial ice. Bubbles in old, deep glacial ice are frozen records of our past atmosphere. Scientists say their purpose-built Antarctic ice bunker will keep these safe for future research. "What we know for sure is that the ice...
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Antarctic sea ice may be a source of mercury in southern ocean fish and birds
2016-08-01 21:32:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: New research has found methylmercury -- a potent neurotoxin -- in sea ice in the Southern Ocean. Published today in the journal Nature Microbiology, the results are the first to show that sea-ice bacteria can change mercury into methylmercury, a more toxic form that can contaminate the marine environment, including fish and birds. If ingested, methylmercury can travel to the brain, causing developmental and physical problems in foetuses, infants and children. The findings were made by an international...
Antarctic Peninsula Has Cooled, but Warming Will Win
2016-07-21 23:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate Central: For most of the latter half of the 20th century, the Antarctic Peninsula was one of the fastest-warming places on the planet, with serious repercussions for the local environment, including the spectacular disintegration of a millennia-old ice shelf, and global sea level rise. But a new study detailed Thursday in the journal Nature suggests temperatures on the peninsula have dropped slightly since the late 1990s. This relative cooling is partly driven by the recovery of the ozone hole, and is,...
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A recent pause in Antarctic Peninsula warming
2016-07-20 12:00:00| LifeSciencesWorld
[NEWS] The rapid warming of the Antarctic Peninsula, which occurred from the early-1950s to the late 1990s, has paused. Stabilisation of the ozone hole along with natural climate variability were significant in bringing about the change. Together these influences have now caused the peninsula to enter a temporary cooling phase. Temperatures remain higher than measured during the middle of the 20th Century and glacial retreat is still taking place. However, scientists predict that if greenhou…
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