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Following is a transcript of the video.
Narrator: There’s a volcano beneath Yellowstone National Park. But it’s not your average volcano. It’s hundreds of meters deep, larger than the state of Rhode Island and capable of eruptions thousands of times more violent than anything we’ve ever witnessed. This is a supervolcano. It’s one of three in the US and it’s considered to be the greatest volcano threat in the country.
If Yellowstone’s volcano erupted, it would be catastrophic. The eruption would shoot a tower of ash into the air, taller than Mount Everest, covering nearby cities in over a meter of ash and creating giant clouds that would block the sun for decades. Ultimately, global temperatures would drop, plants would die, and agriculture would fail. In fact, the UN estimates that the entire world would run out of food in just over two months.
Now, Yellowstone has a history of eruptions like this. It’s erupted three times in the past 2.1 million years. That’s roughly once every 600,000 years. And the last time it erupted? Oh, around 600,000 years ago. But despite what these sensational headlines might have you think, Yellowstone is not going to erupt tomorrow or even 1,000 years from now. In fact, scientists estimate that another supereruption might not happen for another few million years or so. Or with some scientific ingenuity, we could make it so that Yellowstone never erupted again.
That was the idea behind a thought experiment that several scientists at NASA JPL put together in 2015. The idea? Cool the volcano down. After all, heat is what often causes volcanic eruptions in the first place. It rises from Earth’s core and builds up within the volcanic chamber until one day the pressure is so great it explodes. And Yellowstone is no different. Each year, it …read more
Source:: Business Insider