Learn more about the Fifth National Climate Assessment process and progress, opportunities to engage, and answers to frequently asked questions.
Learn about USGCRP's recent accomplishments in our annual report to Congress.
Read NCA4 Vol. II: Impacts, Risks, and Adaptation in the United States, USGCRP’s quadrennial assessment of the impacts of climate change in the U.S.
SOCCR2 is a technical assessment of the state of carbon cycle science in North America
The Climate Science Special Report, Volume I of the Fourth National Climate Assessment (NCA4), assesses the physical science of climate change and provides the foundation for Volume II of NCA4.
Indicators communicate key aspects and related effects of the changing climate.