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06-01-2017, 11:01 PM
How an ancient methane 'blow-out' caused massive craters in the ocean
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The Arctic sea floor was once like a pressure cooker, with methane gas building, building, building beneath an ice sheet for thousands of years. But when the ice eventually melted, the lid suddenly burst off, unleashing e**rmous amounts of methane and forming deep craters.
Some 12,000 years later, the craters are still profusely leaking methane — a potent greenhouse gas and a major contributor to global warming. While scientists have k**wn about pockmarks since the 1990s, a new study shows the craters cover a much larger area than previously thought.
SEE ALSO: What we do in the next 5 years will determine the fate of the melting Arctic (http://mashable.com/2017/04/25/arctic-climate-change-report-next-5-years/) Read more... (http://mashable.com/2017/06/01/methane-blowouts-arctic-ocean/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial)
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The Arctic sea floor was once like a pressure cooker, with methane gas building, building, building beneath an ice sheet for thousands of years. But when the ice eventually melted, the lid suddenly burst off, unleashing e**rmous amounts of methane and forming deep craters.
Some 12,000 years later, the craters are still profusely leaking methane — a potent greenhouse gas and a major contributor to global warming. While scientists have k**wn about pockmarks since the 1990s, a new study shows the craters cover a much larger area than previously thought.
SEE ALSO: What we do in the next 5 years will determine the fate of the melting Arctic (http://mashable.com/2017/04/25/arctic-climate-change-report-next-5-years/) Read more... (http://mashable.com/2017/06/01/methane-blowouts-arctic-ocean/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial)
More about Science (http://mashable.com/science/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), Global Warming (http://mashable.com/category/global-warming/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), Antarctica (http://mashable.com/category/antarctica/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), **rway (http://mashable.com/category/**rway/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), and West Antarctica (http://mashable.com/category/west-antarctica/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial)http://feeds.feedburner.com/~r/Mashable/~4/aZ3xtfY5e0c