"Climate change poses a variety of threats to federally managed natural resources, such as forests and wildlife, including possibly more frequent and severe droughts and wildfires. Adaptation-adjustments in natural or human systems to a new or changing environment that exploits beneficial opportunities or moderates negative effects-can be used to help manage the risks to vulnerable natural resources. GAO was asked to review federal agencies' efforts to incorporate climate change adaptation into their natural resource planning and management since GAO last reported on this issue in 2007.This report examines (1) steps key federal natural resource management agencies-Forest Service, NOAA, Fish and Wildlife Service, National Park Service, and Bureau of Land Management-have taken since 2007 to address adaptation and (2) how these agencies have collaborated at the national level on adaptation since 2007. GAO analyzed the agencies' climate change adaptation guidance and planning documents and interviewed agency officials. GAO also visited one field location for each agency, selected using a nonprobability approach, so the results are not generalizable to all of the agencies' field locations.GAO is not making any recommendations. GAO received written comments from the Department of Agriculture, which said the Forest"