Discovery Channel: Supervolcano
What happens when the supervolcano sleeping beneath Yellowstone awakens?
dsc.discovery.com/convergence/supervolcano/supervolcano.html
BBC: Supervolcano
Factual drama answering the question 'What if Yellowstone erupted?'.
www.bbc.co.uk/sn/tvradio/programmes/supervolcano
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