The steps necessary to stop the gas leak from Aliso Canyon in California is underway, though work won’t be done until the end of February, a gas company said. California Gov. Jerry Brown declared a state of emergency “given the prolonged and continuing duration of the Aliso Canyon gas leak” in early January. The site near Los Angeles has been leaking since late October. Methane is leaking from the site and other gases associated with the mix may contain chemicals associated with cancer risks. Methane is more potent than carbon dioxide as a greenhouse gas. According to advocacy group Greenpeace, the site is leaking […]