Globe and Mail: The Northwest Passage may be ice-free this summer, for only the second time in recorded history. The Canadian Arctic is being fundamentally transformed. As the ice diminishes, new actors and interests will arrive. Who is coming? What will they do? What does it mean for Canada? Many people expect international shippers to take advantage of the shorter distances between Europe and Asia to carry goods through an increasingly ice-free Passage. Most shipping experts, however, think that …