Southern California Gas (SoCalGas) is working to clean up the biggest known gas leak in U.S. history at one of its natural gas storage facilities in the Los Angeles region.
The leaking methane — a greenhouse gas over 80 times more potent than carbon dioxide — threatens the state’s progress in the fight against climate change. It could also compromise the supply of natural gas, which is predominantly methane, to electricity generating plants and gas heating customers in the Southern California region.