https://apnews.com/b847771d0641e961a38c5c72312a53d6 > BILLINGS, Mont. (AP) — Climate change, voracious beetles and disease are imperiling the long-term survival of a high-elevation pine tree that's a key source of food for some grizzly bears and found across the U.S. West, U.S. officials said Tuesday. > A Fish and Wildlife Service proposal scheduled to be published Wednesday would protect the whitebark pine tree as a threatened species under the Endangered Species Act, according to documents posted by the Office of the Federal Register.