ClimateWire: Southern California Gas Co.'s Aliso Canyon natural gas storage facility. The methane leak, plugged Feb. 12, is the biggest source of emitted gas in U.S. history, according to scientists. Photo courtesy of Flickr.
The well blowout in Aliso Canyon near Los Angeles was the largest methane leak in U.S. history and could cost the world more than $100 million in climate damage, experts said.
The well emitted 97,100 tons of methane over four months into the dry foothills just north of Los Angeles'...