Arctic Ice Cap Shrinks to Record Low Level
Clip: 09/20/2012 | 5m 46s
This September, the arctic ice cap melted the most ever recorded, with only 24 percent of the Arctic Ocean covered by ice. Ray Suarez talks to Walt Meier, a scientist at the U.S. National Ice and Snow Data Center about the new evidence and how a lack of arctic sea ice affects ocean currents and changes weather patterns.
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