Trump rollback of mileage standards guts climate change push

WASHINGTON (AP) — The Trump administration is rolling back tough Obama-era mileage standards and gutting one of the United States’ biggest efforts to slow climate change. The administration released its relaxed mileage rules Tuesday. The Obama administration had set the tougher mileage standards to encourage production of electric cars and more efficient gas and diesel vehicles. Tailpipe exhaust is a major contributor to climate changing emissions. The Trump administration argues relaxing mileage standards will save automakers the cost of new emissions technology and make vehicles cheaper for Americans to buy. But opponents say Americans will spend far more on fuel than they save on purchase costs.