BBC: A senior US Coast Guard commander has warned of the risk of conflict in the Arctic, unless disputes over international borders are resolved.
The admiral's warning comes as the Arctic sea-ice has, for a second year running, retreated far more dramatically than the long-term average. The latest satellite analysis shows this year's melt closely following last year's record thaw. The melting has created vast areas of open ocean and attracted far more maritime traffic, including cruise ships - all more rapidly than forecasts indicated only a few years ago.
Russia is staking the largest claim to the Arctic, after planting a flag at the North Pole last summer, but Denmark, Norway, Canada and the United States are all involved in border disputes as well.
Perhaps the US should invade Canada. It had hilarious results in Canadian Bacon.