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NOVA 4416 “Killer Volcanoes”

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“Killer Volcanoes” – Join NOVA and a team of volcanologists looking for an elusive volcanic mega-eruption that plunged the medieval earth into a deep freeze. Investigate the geologic evidence from Greenland all the way to Antarctica to identify the 750-year-old culprit.

Aired: 10/25/17 | Expired: 11/30/17 | Rating: NR

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