The U.S. Forest Service is working with other federal agencies and stakeholders to develop climate change vulnerability assessments and adaptation strategies for national forests and adjacent lands in the western United States. Teams of research scientists and resource managers are working across large biogeographic landscapes to (1) identify sensitivities of natural resources to climatic variability and change, and (2) develop adaptation options that reduce negative outcomes and transition systems to new conditions. The results of recent science-management partnerships in the West have been compiled in the Climate Change Adaptation Library, which summarizes adaptation strategies and on-the-ground tactics for water resources, fisheries, vegetation, wildlife, and recreation. Partnerships and the Library are helping to fine-tune restoration and other aspects of sustainable resource management while accelerating on-the-ground implementation of climate-smart practices.