National forests are required to take significant steps to incorporate climate change in management and planning, including the development of options that facilitate adaptation of natural resources to potentially deleterious effects of an altered climate. Despite uncertainties about the timing and magnitude of climate change effects, sufficient information exists to begin the adaptation process, a form of risk management. This book provides a guidebook for developing adaptation options in responding to climate change in national forests and discusses a climate project tool as an aid for climate change adaptation.