Review the draft themes and framework of the Fifth National Climate Assessment through August 10, 2020, or learn more about the assessment's process and progress.
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.
Read USGCRP’s annual report to Congress describing recent program accomplishments.
Indicators communicate key aspects and related effects of the changing climate.