Season 44 Episode 16 | 54m
NOVA follows a team of volcano sleuths as they embark on a worldwide hunt for an elusive volcanic mega-eruption that plunged medieval Earth into a deep freeze. They look for the signature of a volcanic eruption big enough to have blasted a huge cloud of ash and sulfuric acid into the atmosphere, which chilled the entire planet. Across the globe, it turned summer into winter.
Expires: 10/24/20Video has closed captioning.
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Experience the colossal geologic forces that shaped our continent over 3 billion years.
How can we best prepare for the most lethal volcanic eruptions?
Explore the parts of a volcano and see what causes destruction during volcanic eruptions.
How good are we at predicting when an active volcano will next blow its top?