Agence France-Presse: Countries around the Arctic must commit to curbing climate change to ensure the survival of the polar bear, Norway’s environment minister said Tuesday as an international meeting opened on the species’ fate. "The principal threat to polar bears now is coming from climate change," Erik Solheim told representatives of the five countries that ring the Arctic — Canada, Denmark (with Greenland), Norway, Russia and the United States. "To succeed in conserving the important …