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Yellowstone supereruption could cover North America in ash and drastically alter climate

  • February 26, 2021

Mr Oppenheimer said: “If we have an eruption like Huckleberry Ridge, two million years ago at Yellowstone, that one produced about 2,500km of magma, this scale of an event would cover a continental area in ash, potentially.

“A lot of ash will fall in the ocean, of course, as well.

“If an event of that scale happens in Indonesia, North America or Europe you are looking at the long-lasting disruption to communications, aviation, economy and so on.”

Mr Oppenheimer also noted that a supereruption could cause devastation to the global climate depending on the amount of sulphur emitted into the stratosphere. 


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