Until 30 years ago this series of very deep channels that wind through Canada 's Arctic Islands was frozen all year round . Expedition through the Northwest Passage showed declining glaciers . Journey through islands north of Pond Inlet covered seven nautical miles and lasted 14 days . Changing climate has melted ice making it possible to cross from Pacific to Pacific during 14 days .
Expedition through the Northwest Passage showed declining glaciers . Journey through islands north of Pond Inlet covered seven nautical miles and lasted 14 days . Changing climate has melted ice making it possible to cross from Pacific to Pacific during 14 days .