What a Yellowstone supervolcano eruption would actually mean for humanity

It's kind of a "That's no moon" moment in real life — a series of discoveries in the 1960s and 1970s led geologists to realize that most of Yellowstone National Park was one giant volcanic caldera. If you've seen the cable TV specials, you've probably come to the conclusion that an eruption of this supervolcano could doom humanity and that said eruption is bound to happen at any time. But the reality is more nuanced than that, write Annalee Newitz at iO9.com. Not only is a Yellowstone eruption not imminent, but there's also more than one way it could erupt — and the most likely scenarios don't equate to worldwide horror.
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