OTTAWA - Arctic ice cover has reached another nadir, melting to its lowest point in modern history.
Scientists say the melt climaxed today and will now begin to turn with the coming of colder weather.
They were taken by surprise by the speed of the thaw this year and say an area of sea ice bigger than Alberta disappeared over the summer — clobbering previous records and prompting concerns about the effects on climate change.
Darker waters and thinner patches of ice absorb more heat from the sun, accelerating global warming in a process that is next to impossible to reverse.
In the Canadian Arctic, government researchers say they have also seen a historic low for the ice this summer, with just 12 per cent of the region keeping its ice this season, compared to a normal 30 to 35 per cent.
© The Canadian Press, 2012
19 Sep, 2012
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Source: http://www.globalnews.ca/Canada/summer+takes+unprecedented+toll+on+arctic+ice+prompting+climate+change+fears/6442718268/story.html
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