Scientists at Work: Studying Volcanic Eruptions—When, How Big, and How Fast? - a podcast by The Pew Charitable Trusts

Stat: 800 million: The number of people in the world who live within the footprint, 62 miles, of a volcano.

Story: In the latest episode in our “Scientists at Work” series, we go behind the scenes at the Smithsonian National Museum of Natural History, where we meet geologist and volcanologist Ben Andrews, who works to answer three key questions about volcanoes around the world: When will an eruption happen, how big could the eruption be, and how fast?

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