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It’s official! You can stop worrying about “climate change” effects on the polar bears, seals, and walrus – they’ve seen it all before, including ice-free summers

Watts Up With That?

Paleoclimate + genetic study confirms: Arctic species adapted to sea ice changes

Guest essay by Dr. Susan Crockford

A new paper that combines paleoclimatology data for the last 56 million years with molecular genetic evidence concludes there wereno biological extinctions over the last 1.5M years despite profound Arctic sea ice changes that included ice-free summers: polar bears, seals, walrus and other species successfully adapted to habitat changes that exceeded those predicted by USGS and US Fish and Wildlife polar bear biologists over the next 100 years.

healy-aug-24-2015-polar-bear-v-tim-kenna

Cronin, T. M. and Cronin, M.A. 2015. Biological response to climate change in the Arctic Ocean: the view from the past. Arktos 1:1-18 [Open access] http://link.springer.com/article/10.1007/s41063-015-0019-3

Thomas Cronin is a USGS paleoclimatologist at the Eastern Geology and Paleoclimate Science Center, and Matthew Cronin is a molecular geneticist at the University of Alaska Fairbanks (see previous postshere and here about Matt’s work on…

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