have intensified have intensified US Fish and Wildlife: Climate Change in the PNW United States Fish and Wildlife Service - Pacific Northwest U.S. Fish and Wildlife Service U.S. Fish and Wildlife Service, http://www.fws.gov/pacific/Climatechange/changepnw.html US Fish and Wildlife: Climate Change in the PNW U.S. Fish and Wildlife Service, http://www.fws.gov/pacific/Climatechange/changepnw.html U.S. Fish and Wildlife Service, have intensified have intensified have intensified U.S. Fish and Wildlife Service U.S. Fish and Wildlife Service,