Bloomberg: “The Trump administration, taking aim at one of former President Barack Obama’s signature environmental achievements, is proposing to suspend required increases in vehicle fuel economy after 2020 and unwind California’s authority to limit tailpipe greenhouse gas emissions in the state. The Environmental Protection Agency and National Highway Traffic Safety Administration jointly proposed on Thursday to cap fuel economy requirements at a fleet average of 37 miles per gallon starting in 2020. Under the Obama plan, the fleetwide fuel economy would have risen gradually to roughly 47 mpg by 2025. They also propose to revoke California’s authority under the Clean Air Act to set rules more stringent than the federal ones limiting tailpipe greenhouse gas emissions as well as an electric-vehicle sales mandate…”