FILE - This Sept. 27, 2017, file photo, shows charred trunks of Ponderosa pines near Sisters, Ore., months after a prescribed burn removed vegetation, smaller trees and other fuel ladders last spring. Hundreds of millions of acres of forests have become overgrown, prone to wildfires that have devastated towns, triggered massive evacuations and blanketed the West Coast in choking smoke. Today, officials want to sharply increase prescribed burns, with drought and global warming creating a sense of urgency. (AP Photo/Andrew Selsky, File)