Summary
The extent of Arctic Ocean ice at the end of the summer melt season was a little larger than in 2007 or 2008, but still the third-least ice in the Arctic since satellite records began in the late 1970s.
Arctic ice concentration is a focus of global warming discussions. But the effects of Arctic ice extent on any particular North American winter are not clear-cut.See the full content of this document
Extract
Arctic's Influence Uncertain
The advance of cold air in the Northern Hemisphere during fall...
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