Nature World News: The costs resulting from methane released by melting Arctic ice could equal $60 trillion, or roughly a year of global economic output, according to a paper published Wednesday in the journal Nature.
Trapped within the East Siberian Arctic Shelf is an estimated 50 gigatons of the known greenhouse gas that is expected, according to the scientists, to be released either suddenly or gradually over the next half century based on how quickly the ice melts.
Either way, the researchers, who hail from...