In this Sunday, July 16, 2017, sea ice breaks apart as the Finnish icebreaker MSV Nordica equipped with enclosed life boats sails the Chukchi Sea to traverse the Arctic's Northwest Passage. The MSV Nordica icebreaker has all the safety equipment of a modern oceangoing vessel, plus some more because it works in hostile and remote Arctic waters. In a general emergency, such as a hole in the hull, those aboard would grab a survival suit stowed beneath each bunk and head for one of two muster stations on deck to don a life vest. (AP Photo/David Goldman)