• NCA5 Draft Prospectus

    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.

    Open NoticeLearn about NCA5

  • Fourth National Climate Assessment Volume II

    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.

    Explore NCA4Learn about the report

  • 2nd State of the Carbon Cycle Report

    SOCCR2 is a technical assessment of the state of carbon cycle science in North America

    Explore SOCCR2Learn about the report

  • Climate Science Special Report

    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.

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  • Our Changing Planet: USGCRP for Fiscal Years 2018-2019

    Read USGCRP’s annual report to Congress describing recent program accomplishments.

    Read OCP FY2018-19
  • Melting sea ice is one indicator of climate change

    Indicators of Change

    Indicators communicate key aspects and related effects of the changing climate. 

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