President Trump’s efforts to change California’s longstanding, but stringent low carbon fuel standards could get even tougher. A three-judge panel of the 9th U.S. Circuit Court of Appeals on Friday unanimously upheld the state’s 2015 low carbon fuel standard requiring fuel producers to reduce greenhouse gas emissions. The court’s decision comes after state officials recently amended the standard to mandate a 20 percent reduction by 2030 in the carbon output of fuels used for transportation in California. The court had rejected a similar challenge last year, while on Friday said that California had attempted to address a vitally important environmental issue. The court added that California can seek to reduce the harms caused by fuels sold within its borders, regardless of where it was produced. Fuel producers’ counterclaims Fuel and corn-ethanol producers have been arguing that the standard discriminates against some producers, and also claim that it discriminates against […]