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Arctic ice grows darker and less reflective

2013-08-07 19:59:00| Climate Ark Climate Change & Global Warming Newsfeed

New Scientist: SUMMER was once an important time for reflection in the Arctic. Perhaps not for much longer: the Arctic Ocean now reflects 15 per cent less sunlight than it did 30 years ago. Aku Riihelä of the Finnish Meteorological Institute and his colleagues looked at satellite measurements of reflectivity, or albedo, between 1982 and 2009 (Nature Climate Change, doi.org/nct). He says the darkening is partly due to thinning ice and the formation of fissures, and partly because in the warmer air, ponds of liquid...

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