Associated Press: A study of an Alaska polar bear population in summer concludes the bears biology will not help stave off starvation in the face of global warming. The study of southern Beaufort Sea polar bears by university, federal and private researchers over three years concludes they have no special ability to minimize energy loss during increasing periods of fasting brought on by climate warming, less sea ice and fewer hunting days. The research rejects the idea that polar bears can avoid harmful declines...