Nature World: The Arctic seafloor might have a larger methane time-bomb than previously assumed.
A new study has found that the East Siberian Arctic Shelf is releasing 17 teragrams of methane each year, about twice as much as previous estimates. One teragram is about 1 million tons. What's worse is that climate change might be accelerating its release.
The study was conducted by researchers at the University of Alaska, Fairbanks and colleagues.
Methane is the second-most prevalent greenhouse gas in the...