The United Nations says that in 30 years, there may be no ice left in the Arctic if we don’t do more to stop global warming. Secretary General Ban Ki Moon was in the Arctic Circle this week, to drive that point home. We talk to the director of the Secretary General’s Climate Change Support Team, Janos Pazstor, and Anthony Russell of the U.S. Coast Guard. Russell is part of a team that just returned from the arctic north, as part of a U.S. exploration mission.