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Tag: antarctic
Warmer Seas May Impact Antarctic Clams Reproduction
2013-04-28 17:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate News Network: Antarctic clams (Laternula elliptica) play a vital role in the ocean ecosystem, drawing down carbon into sea-bed sediments and circulating ocean nutrients. Now a new study has found that the reproductive capacity of this long-lived and abundant species -- existing in the cold, oxygen-rich waters of the Antarctic -- could be seriously affected by rising ocean temperatures. The study, by scientists at the British Antarctic Survey (BAS) and from the University of Kiel and the Alfred Wegener Institute...
Tags: impact
reproduction
seas
warmer
Antarctic nematodes and climate change
2013-04-27 01:04:00| Climate Ark Climate Change & Global Warming Newsfeed
BBC: Climate change affects not only air temperature and sea levels, but soil as well. And an American scientist is on an award-winning quest to reverse the damage. The frozen desert valleys of Antarctica are among the world's most inhospitable environments. The landscape is so barren that just 30 years ago, experts did not think it could support life. But beneath the surface, microscopic worms called nematodes thrive in a unique ecosystem - and they are helping researchers understand the effects...
Tags: change
climate
antarctic
nematodes
Antarctic clams may take a hit from global warming
2013-04-19 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Summit Voice: Warming ocean temperatures and increased glacial outflow around Antarctica may have a big impact on clams living on the ocean floor. Younger clams try to move away when they sense warmer temperature or reduced oxygen levels, but older clams stay put. The findings by a team of British and German scientists indicate how climate change may affect biodiversity in the region, suggesting that the overall population of Antarctic clams may dwindle, since it`s the older animals that reproduce. Our...
Tags: global
hit
warming
antarctic
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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