This review provides an inventory of country-level adaptation activities and a summary of key adaptation priorities, based on documents like the UN Framework Convention on Climate Change’s National Adaptation Programs of Action and National Communications. It also identifies gaps and opportunities for scaling up and enhancing collaboration. The Adaptation Partnership, co-chaired by the United States, Spain, and Costa Rica, seeks to encourage effective adaptation by catalyzing action and fostering communication among the various institutions and actors engaged in the effort to scale up adaptation and resilient development around the world.