Changing climate pushes polar bears toward more dangerous interactions with humans

As melting sea ice forces polar bears onto dry land, interactions with humans are becoming more common and potentially more dangerous. (Creative Commons photo by Christopher Michel/Flickr)For Halloween in 2014, the kids in the village of Arviat in the Canadian Arctic had to trick-or-treat indoors. In the community center, they had a warm place to show off their costumes, but more importantly, they were safe from three polar bears outside.
That night, a polar bear and her two yearlings spent thre