When Nature Strikes: Volcanoes

Volcanoes are one of the most powerful natural hazards on Earth, but supervolcanoes are so large that they have the ability to alter the world's climate. Michael Manga from the University of California, Berkeley, is investigating a supervolcano that erupted hundreds of thousands of years ago, and could do so again.

Provided by the National Science Foundation and NBC Learn

Runtime: 5:33

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