FILE - This undated aerial file photo provided by U.S. Fish and Wildlife Service shows a herd of caribou on the Arctic National Wildlife Refuge in northeast Alaska. President Joe Biden on Wednesday, Jan. 20, 2021, signaled plans to place a temporary moratorium on oil and gas lease activities in Alaska's Arctic National Wildlife Refuge after the Trump administration issued leases in a remote, rugged area considered sacred by the Indigenous Gwich'in. (U.S. Fish and Wildlife Service via AP, File)