Global mercury emissions could grow by 25 percent by 2020 if no action is taken to control them, posing a threat to polar bears, whales and seals and the Arctic communities who hunt those animals for food, an authoritative ...
Environment
May 5, 2011
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(PhysOrg.com) -- Operation IceBridge, NASA's airborne mission to monitor polar ice, is amid its fourth week of flights for the Arctic 2011 campaign. Researchers and crew successfully completed flights from Thule, Greenland, ...
Earth Sciences
Apr 8, 2011
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(PhysOrg.com) -- By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth's ...
Earth Sciences
Apr 8, 2011
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Researchers and flight crew arrived in Thule, Greenland, on Monday, March 14, for the start of NASA's 2011 Operation IceBridge, an airborne mission to study changes in Arctic polar ice. This year's plans include surveys of ...
Earth Sciences
Mar 15, 2011
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(PhysOrg.com) -- The Greenland and Antarctic ice sheets are losing mass at an accelerating pace, according to a new NASA-funded satellite study. The findings of the study -- the longest to date of changes in polar ice sheet ...
Earth Sciences
Mar 9, 2011
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University of Alberta researchers Peter Molnar, Andrew Derocher and Mark Lewis studied the reproductive ecology of polar bears in Hudson Bay and have linked declining litter sizes with loss of sea ice.
Ecology
Feb 8, 2011
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In one of the most dramatic signs ever documented of how shrinking Arctic sea ice impacts polar bears, researchers at the U.S. Geological Survey in Alaska have tracked a female bear that swam nine days across the deep, frigid ...
Plants & Animals
Feb 3, 2011
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An extraordinary underground observatory for subatomic particles has been completed in a huge cube of ice one kilometre on each side deep under the South Pole, researchers said.
General Physics
Dec 23, 2010
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Climate change is pushing Arctic mammals to mate with cousin species, in a trend that could be pushing the polar bear and other iconic animals towards extinction, biologists said.
Plants & Animals
Dec 16, 2010
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There is no "tipping point" beyond which climate change will inevitably push the Arctic ice cap into terminal melt off, according to a study released Wednesday.
Earth Sciences
Dec 15, 2010
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