FILE - This June 6, 2016 file photo shows a tree stained by a fungus carried by the bark beetle, which diminishes the trees value as lumber, near Cressman, Calif. The California drought has killed more than 102 million trees in a die-off of forests that increases the risk of catastrophic wildfires and other threats to humans, officials said Friday, Nov. 18. The latest aerial survey by the U.S. Forest Service shows there are 36 million more dead trees since May in the state and there has been a 100 percent increase since 2015. 