Agency proposes critical habitat for ringed seals
A federal agency has proposed about 350,000 square miles of ocean off Alaska's north and west coasts as critical habitat for the seal that's the main prey of polar bears.
A federal agency has proposed about 350,000 square miles of ocean off Alaska's north and west coasts as critical habitat for the seal that's the main prey of polar bears.
Ecology
Dec 2, 2014
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Shifts in the timing and duration of ice cover, especially the possible lengthening of ice-free periods, may impact polar bears under projected warming before the end of the 21st century, according to a study published November ...
Ecology
Nov 26, 2014
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A key polar bear population fell nearly by half in the past decade, a new U.S.-Canada study found, with scientists seeing a dramatic increase in young cubs starving and dying.
Ecology
Nov 17, 2014
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Many US coastal communities already struggle with flooding at high tides, a problem that will become "chronic" in the coming 15 years due to global warming, scientists said Wednesday.
Environment
Oct 8, 2014
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For thousands of years, the massive glaciers of Earth's polar regions have remained relatively stable, the ice locked into mountainous shapes that ebbed in warmer months but gained back their bulk in winter. In recent decades, ...
Earth Sciences
Sep 4, 2014
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A new study says that as the world gets warmer, parts of North America, Europe and Asia could see more frequent and stronger visits of cold air as the world gets warmer.
Earth Sciences
Sep 2, 2014
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While the sinking of the Titanic in 1912 is typically blamed on human, design and construction errors, a new Significance paper points to 2 other unfavorable factors outside human control: there were a greater number of icebergs ...
Earth Sciences
Aug 18, 2014
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Climate change is melting sea ice at a hastening pace, pushing polar bears from their historic hunting grounds to dry land – and potentially spawning a "perfect storm" that could devastate the great Arctic carnivores through ...
Ecology
Aug 14, 2014
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The first video of life on Arctic sea ice from a polar bear point of view has been released by the U.S. Geological Survey.
Ecology
Jun 7, 2014
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(Phys.org) —A small team of researchers from Australia and New Zealand has found that large waves caused by ocean storms appears to be playing a bigger role in breaking up polar sea ice than has been thought. In their paper ...