For more than a century, Experimental Forests and Ranges (EFRs) have provided critical science on the ecosystems and management activities of the National Forest System. Forest Service EFRs play a unique and important role both within the agency as well as in the broader field of land management. The goal of EFRs is to generate knowledge that benefits both public land managers and private land owners. This goal is achieved through research projects on pressing natural resource topics such as hydrology, fire dynamics, range management, erosion, climate change, silviculture, and forest regeneration. EFRs are uniquely situated for such research due to their relative stability and long-term datasets. This book specifically discusses the role of EFRs in understanding and adapting to climate change.