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Tag: antarctica
East Antarctica more at risk than thought to long-term thaw
2014-05-05 14:36:28| Climate Ark Climate Change & Global Warming Newsfeed
Australian Broadcasting Corporation: PART OF EAST ANTARCTICA is more vulnerable than expected to a thaw that could trigger an unstoppable slide of ice into the ocean and raise world sea levels for thousands of years, a study showed on Sunday. The Wilkes Basin in East Antarctica, stretching more than 1,000 km inland, has enough ice to raise sea levels by three to four metres if it were to melt, the report said. The Wilkes is vulnerable to warming associated with climate change because it is held in place by a small rim of ice,...
Climate change is preventing ocean heat from escaping in Antarctica: McGill study
2014-03-02 20:23:00| Climate Ark Climate Change & Global Warming Newsfeed
CTV: A new discovery by scientists at McGill University suggests that heat from the depths of the ocean is being trapped under the Antarctic ice shelf -- all the result of climate change. In the 1970s, researchers in Antarctica observed an open body of water the size of New Zealand within an ice pack in the Southern Ocean's Weddell Sea. Until now, they believed the phenomenon, known as the Weddell polynya, to be a rare occurrence. But researchers at McGill say that the polynya in Antarctica has...
Antarctica warming tied to natural cycle in tropical Atlantic, study says
2014-01-24 17:29:00| Climate Ark Climate Change & Global Warming Newsfeed
Christian Science Monitor: Rapid warming along the Antarctic Peninsula and puzzling shifts in the distribution and extent of winter sea ice at the bottom of the world appear to have their roots in a natural climate swing centered in the tropical Atlantic, according to a new study by researchers at New York University. The warming of the region is of concern because of its implications for sea-level rise, while the shifting and slight increase in winter sea ice has become a favorite talking-point among many of global warmings...
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Antarctica & the Arctic: A polar primer for the new great game
2014-01-13 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Christian Science Monitor: Just after noon on Sept. 4, 2010, a squat, yellow-black cargo ship lumbered out of the Norwegian port of Kirkenes. Naked ridges of glacially scarred granite slid by on either side as the Nordic Barents motored toward the open sea with 41,000 tons of iron ore locked in her belly. It might have resembled a routine voyage to Western Europe. But the sense of normalcy vanished as the ship reached the mouth of the fiord, a geographic and economic crossroads at the extreme northern edge of Scandinavia....
Thinning out on Antarctica
2014-01-06 22:31:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: Pine Island Glacier, located in West Antarctica, is showing signs of thinning making it more susceptible to climatic and ocean variability than at first thought. Scientists led by the British Antarctic Survey have discovered large fluctuations in the ocean heat manifesting itself in the melting of the ice shelf into which the glacier flows. Between 2010 and 2012 the ice shelf into which the ice stream flows has decreased by 50%, most likely due to La Nin, suggesting a complex interplay between geological,...
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