Wednesday, 18 January 2012 11:12
Written by Doug O'Harra, Alaska Dispatch
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| Increasing freshwater on the U.S. and Canadian side of the Arctic is balanced by decreasing freshwater on the Russian side. Blue represents maximum freshwater increases and yellows and oranges represent maximum freshwater decreases. Graphic courtesy: University of Washington. Alaska Dispatch. |
Fresh water sloshing into the polar sea from the great rivers of Russia has been collecting on the Alaskan and Canadian side of the Arctic, adding the equivalent of 10 feet of freshwater to the central Beaufort Sea between 2003 and 2008, according to a
new study published this month in Nature.
The ocean northeast of Alaska is now the freshest it's been in 50 years, the scientists said, but only a tiny proportion of that can be blamed on ice melt. Most of it can be traced to Eurasian river runoff, following a previously undetected pathway from one side of the world to the other.