of 7 million cars or "8 or 9 coal-fired plants". The 20-year climate impact of this leak is estimated to be the same as burning a billion gallons of gasoline. The incident has been called "the biggest environmental disaster since the Deepwater Horizon oil spill" by journalists. The company has advocated for mixing biogas into existing natural gas pipelines. However, California state officials have taken the position that biogas is "better used in hard-to-electrify sectors of the economy-- like aviation, heavy industry and long-haul trucking." References External links SoCalGas.com: official Southern California Gas Company website SoCalGas.com: official Aliso Canyon gas leak website Sempra website Energy in California Sempra Energy Electric power companies of the United States Natural gas companies of the United States Companies based in Los Angeles Southern California Non-renewable resource companies established in 1867 1867 establishments in California Energy companies established in 1867