From the Tierney Lab:
[T]here's one very hard piece of evidence that casts doubt on the doomsday predictions: a polar bear jawbone that appears to be at least 110,000 years old, meaning that polar bears have survived eras with considerably warmer temperatures than today. My colleague Andy Revkin reported in December, at his Dot Earth blog, that the discoverers of the jawbone told him there was "no threat of outright extinction within a century or more" and that "this finding reinforces the idea that they can endure."
More good news for the polar bears: sea ice extent has returned to " near normal" levels after last summer's "record" thaw, and the Northern Hemisphere has more snow cover right now than at any time in the last decade. HT: Eastern Weather