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Sea Ice Loss Could Alter Arctic Air Chemistry
2013-04-24 09:04:00| Climate Ark Climate Change & Global Warming Newsfeed
LiveScience: Over the past 30 years, the Arctic has warmed more than any other place on the planet, and that warming and the resulting melt of the region's sea ice presents a number of potential adverse effects, from impacts on weather systems to the decline in the habitats of native species. Now, a team of scientists have found evidence that the Arctic warming and melting sea ice could be changing the chemistry of the Arctic atmosphere through reactions that happen on the snow that sits atop the sea ice and...
Is Ice Loss by Glaciers Abnormal?
2013-04-17 15:31:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: In the last few decades, glaciers at the edge of the icy continent of Antarctica have been thinning, and research has shown the rate of thinning has accelerated and contributed significantly to sea level rise. New ice core research suggests that, while the changes are dramatic, they cannot be attributed with confidence to human-caused global warming, said Eric Steig, a University of Washington professor of Earth and space sciences. Previous work by Steig has shown that rapid thinning of Antarctic...
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Campaigners Drop Flag Under N.Pole Ice Amid "Cold Rush" Concerns
2013-04-16 06:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: Environmentalists have placed a flag on the seabed under the North Pole to urge protection for the region in a rebuff to Russia which planted a flag in 2007 in a symbolic territorial claim. Four campaigners, backed by Greenpeace, cut a hole in the ice at the North Pole at the weekend and dropped the flag and a capsule with almost 3 million signatures asking for the region to be off-limits to exploitation, Greenpeace said on Monday. A Russian submarine planted a flag on the seabed in the same...
Antarctic ice melting 10 times faster than 600 years ago
2013-04-15 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Australian Broadcasting Corporation: A report has found that the Antarctic summer ice melt is now occurring 10 times faster than it did 600 years ago. Scientists from the British Antarctic Survey and the Australian National University drilled a 360-metre ice core near the northern tip of the peninsula to to identify past temperatures. The ice core gave an extraordinary insight into the temperatures, revealing the coolest conditions, and the lowest melt, occurred six centuries ago. By comparison, it found temperatures now are...
Antarctic ice melting at record rate, study shows
2013-04-15 11:45:00| Climate Ark Climate Change & Global Warming Newsfeed
Press Association: Summer ice is melting at a faster rate in the Antarctic peninsula than at any time in the last 1,000 years, new research has shown. The evidence comes from a 364-metre ice core containing a record of freezing and melting over the previous millennium. Layers of ice in the core, drilled from James Ross Island near the northern tip of the peninsula, indicate periods when summer snow on the ice cap thawed and then refroze. By measuring the thickness of these layers, scientists were able to match...
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