Trump administration officials and members of Congress walked along the burn scar from Utah’s devastating Cottonwood Fire last week…. If the forest had been thinned, with “a lot fewer trees per acre, and maybe even some controlled burns to take the underbrush out, there’s just not the fuel there when these fires start to make them catastrophic fires,” Rep. Bruce Westerman said. The Arkansas Republican chairs the House Natural Resources Committee. But these traditional fire prevention methods may no longer work with a changing climate that makes hot, dry weather increasingly the norm said Dominik Kulakowski, a professor of geography at Clark University in Massachusetts. “The implication of that,” he said, “is that we’re losing our ability to manage forest fires.” …The Trump administration issued a directive this year calling on federal agencies to aggressively suppress all fires — including the smaller ones that forests evolved with and may keep them healthy.