Fourth National Climate Assessment Vol I + II

NCA4 Vol II: Impacts, Risks, and Adaptation in the United States
NCA4 Vol I: Climate Science Special Report
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).
Please note that we are currently experiencing shipping delays of at least two weeks. Thank you for your patience.
The FY2022 edition of USGCRP’s annual report to Congress, Our Changing Planet, responds to the Global Change Research Act mandate to provide an overview of the Program’s progress in delivering on its strategic goals as well as a summary of agency expenditures under USGCRP’s budget crosscut.
This report was developed for the National Climate Task Force by the White House Office of Science and Technology Policy, NOAA, and FEMA, with input from a number of federal agencies, in response to President Biden’s Executive Order 14008, to identify opportunities for expanding and improving climate information to better enable the public to prepare for climate change. This report...
The FY2021 edition of USGCRP’s annual report to Congress, Our Changing Planet, responds to the Global Change Research Act mandate to provide an overview of the Program’s progress in delivering on its strategic goals as well as a summary of agency expenditures under USGCRP’s budget crosscut.
The FY2018–19 edition of USGCRP’s annual report to Congress, Our Changing Planet, responds to the Global Change Research Act mandate to provide an overview of the Program’s progress in delivering on its strategic goals as well as a summary of agency expenditures under USGCRP’s budget crosscut.
AMAP, 2019. Arctic Ocean Acidification Assessment 2018: Summary for Policy-Makers
The Report-in-Brief includes plain-language highlights and the technical executive summary.
The Second State of the Carbon Cycle Report (SOCCR2) provides a current state-of-the-science assessment of the carbon cycle in North America and its connection to climate and society. Information from the report is relevant to climate and carbon research as well as to management practices in North America and around the...
The Second State of the Carbon Cycle Report (SOCCR2) provides a current state-of-the-science assessment of the carbon cycle in North America and its connection to climate and society. Information from the report is relevant to climate and carbon research as well as to management practices in North America and around the world.