The coldest war: Russia and U.S. face off over Arctic resources

As the oil wells run dry, the planet's last great energy reserves lie miles beneath the North Pole. And as the U.S. and Russia race to grab them at any cost, the stage is set for a devastating new cold war.

The year is 2020, and, from the Middle East to Nigeria, the world is convulsed by a series of conflicts over dwindling energy supplies.

The last untapped reserves of oil and gas lie in the most extreme environment on the planet - the North Pole - where an estimated bonanza of 100 billion barrels are buried deep beneath the Arctic seabed.

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