A polar bear stands on a ice flow in Baffin Bay above the arctic circle as seen from the Canadian Coast Guard icebreaker Louis S. St-Laurent Thursday, July 10, 2008. The Louis S. St-Laurent is on its annual voyage through Canada's Arctic that includes patrols through the Northwest Passage. In addition to serving the people of Canada's North the ship is carrying a team of scientists studying climate change and the health of Canada's three oceans. THE CANADIAN PRESS/Jonathan Hayward