Arctic summer ice melt reached a record low last week. The ice levels seemed more dramatically diminished than at any time since satellite monitoring began 33 years ago. And John Yackel, a sea ice geophysicist and climatologist, says this year's extreme melt in the Arctic could have serious ramifications for the planet. The previous record low for Arctic sea ice extent, set on Sept. 18, 2007 with a 4.17-million sq.-km. ice cap, was already shattered ...
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