Climate Bomb? Methane Vents Bubble on Seafloor off East Coast: Study

Publication: NBC News   Date: August 23, 2014   View Article

Methane appears to be bubbling up from more than 500 vents on the Atlantic Ocean floor off the U.S. East Coast, according to a new study in a finding that could have profound long-term implications for the global climate.

While scientists suspected these so-called seeps existed there, until now they lurked undetected. Their discovery suggests similar seeps exist throughout the world’s oceans.

The seeps come from gas hydrates, an ice-like combination of water and methane that forms naturally with extreme cold and depth in the ocean. Methane is a potent greenhouse gas, and gas hydrates are thought to hold up to 10 times as much carbon as the earth’s atmosphere.

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