Sunday, December 2, 2012

Supervolcano.The Truth About Yellowstone.

Supervolcano.The Truth About Yellowstone. Video Clips. Duration : 56.87 Mins.


Meet the experts who monitor the behaviour of the Yellowstone supervolcano. They face the awesome responsibility of predicting when the next super-eruption might next take place -- and advising on what will happen when it does.

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