‘Great Melt’ in the Arctic calls for increased co-operation between Canada and United States, policy brief argues. The “great melt,” an unprecedented geophysical change, in the Arctic is cause for heightened leadership, attention and cooperation between Canada and the United States. Without a national strategic vision, current policies are inadequate to protect economic and environmental interests, argues a new policy brief issued by The Centre for International Governance Innovation (CIGI). In Canada-US Arctic Marine Corridors and Resource Development, global governance experts John Higginbotham, Andrea Charron and James Manicom argue that “clear imperative” exists for the two North American countries to develop their marine resource and community potential for the Arctic.