Contact: Vince Stricherz
University of Washington
Caption: A polar bear walks along an expanse of open water at the edge of Hudson Bay near Churchill, Manitoba, in 2011. The bears need pack ice to hunt for food, primarily seals, but climate change brings open water more often than it used to. Polar bears have been listed as a threatened species.
Credit: Cecilia Bitz/U. of Washington
Usage Restrictions: News use only
Related news release: Injecting sulfate particles into stratosphere won't fully offset climate change