Reuters: Global warming is threatening polar bears as it melts their icy Arctic habitat, Norway’s environment minister said on Monday. “If the ice is disintegrating in the Arctic, it will have enormous impact on polar bears,” Environment and Development Minister Erik Solheim told reporters on the eve of a meeting to discuss the future of the huge white carnivore. The meeting is the first since 1981 to bring together states which are home to polar bears — Norway, Russia, Canada, the …