California's Leadership in Climate Change: EPA Prepares to Roll Back Rules Requiring Cars to Be Cleaner and More Efficient New York Times The move — which undercuts one of President Barack Obama's signature efforts to fight climate change — would also propel the Trump administration toward a courtroom clash with California, which has vowed to stick with the stricter rules even if Washington rolls back federal standards. That fight could ... If Trump's EPA wants a war over California fuel economy standards, war it is The San Diego Union-Tribune The Trump administration seeks to imperil this history by ending California's leadership on vehicle emissions and mileage standards. Next week, EPA ... Jerry Brown told a meeting of the American Geophysical Union a month after Trump's election, anticipating a conflict over climate change. “And we will ... The Trump Administration Is Cutting Obama-Era Fuel Efficiency Regulations Fortune It dovetails with other steps to unwi