FILE - In this Jan. 9, 2014, file photo, rail cars are filled with coal and sprayed with a topper agent to suppress dust at Cloud Peak Energy's Antelope Mine north of Douglas, Wyo. Four states with climate change worries are asking a judge to stop the Trump administration from selling coal from public lands. Attorneys general from California, New Mexico, New York and Washington are due in a U.S. courtroom in Montana on Thursday, Dec. 13, 2018, to argue the sales put the climate at risk and shortchange taxpayers. (Ryan Dorgan/The Casper Star-Tribune via AP, File) (Source: Ryan Dorgan)