This guide examines how climate change is already affecting the nation's wildlife and habitats and addresses how natural resource managers will need to prepare for and adapt to these unprecedented changes. Developed by a collaboration of experts from federal, state, and non-governmental institutions, the guide offers practical steps for crafting conservation actions to enhance the resilience of the natural ecosystems on which wildlife and people depend. This publication was developed by a workgroup convened by the National Wildlife Federation and included individuals from: Desert Research Institute, EcoAdapt, U.S. EPA, Florida Fish and Wildlife Conservation Commission, Geos Institute, Maryland Department of Natural Resources, NOAA, National Park Service, Point Blue Conservation Science, The Nature Conservancy, U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service, U.S. Forest Service, U.S. Geological Survey, and Wildlife Conservation Society.