The Reports Library features scientific assessments, annual reports, strategic research plans, and other resources produced by USGCRP and the collaborative efforts of our member agencies. Select reports by other authoritative scientific bodies with whom we work, such as the Intergovernmental Panel on Climate Change (IPCC) and the National Research Council (NRC), are also accessible here. Most reports are available for download (open and click View); some can be ordered in print free of charge (open and click Add to Cart).
Fourth National Climate Assessment Vol I + II
The Fourth National Climate Assessment (NCA4), completed in November 2018, is a comprehensive and authoritative report on climate change and its impacts in the United States.
NCA4 Vol II: Impacts, Risks, and Adaptation in the United States
This document presents the policy-relevant findings of the Arctic Monitoring and Assessment Programme's 2015 assessments of persistent organic pollutants, radioactivity, and human health in the Arctic.