"Environmental policy Northwest Passage." . . "Amundsen, Roald, 1872- 1928 Travel Northwest Passage." . . "Northwest Passage." . . "Environmental policy." . . "Northwest Passage Discovery and exploration." . . "Larsen, Henry A." . . "Canada (Nord)" . . "Canada, Northern." . . "Environnement Politique gouvernementale Nord-Ouest, Passage du." . . "Territory, National." . . "Northwest Passage" . . . . . . . . . . . . "Electronic books"@en . . . . . "Ressource Internet (Descripteur de forme)" . . . . . "Dangerous passage : issues in the Arctic" . . . . . . . "Livre électronique (Descripteur de forme)" . . "Over the five hundred or so years that man searched for an elusive sea passage from Europe to Asia through the North American land mass, dozens of ships were lost and hundreds of mariners died. Eventually, a sea route stretching through the waters of the archipelago and along Canada's mainland Arctic coast was pieced together. But could ships navigate the Northwest Passage to the extent that it could be used as an international shipping route? Two seagoing captains and their ships -- a Norwegian, Roald Amundsen, and a Canadian of Norwegian birth, Henry Asbjorn Larsen -- answered that question."@en . . . . . . "Dangerous passage issues in the Arctic" . "Dangerous passage issues in the Arctic"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Voyage." . . "Larsen, Henry A. (Henry Asbjorn), 1899-1964 Travel Northwest Passage." . . "(Henry Asbjorn)" . . "Territoire national Canada (Nord)" . . "Territory, National Canada, Northern." . . "Geography." . . "Amundsen, Roald." . . "Discovery and exploration." . . "Gjøa (Ship)" . . "1872-1928." . . "Gjøa (Navire)" . . "Découverte géographique." . . "Territoire." . . "Passage du Nord-Ouest." . . "TRAVEL General." . . "Nord-Ouest, Passage du" . . "Travel." . . . . "Explorateur." . . "Politique environnementale." . . "St. Roch (Schooner)" . . "1899-1964." . . "Canada, Northern." . .