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).
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A report by the U.S. Global Change Research Program and the Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 2002 Budget. Published 2001.
This document is the Foundation report, which provides the scientific underpinnings for the Assessment.
This document is the Assessment Overview, based on a longer, referenced Foundation report.
A report by the U.S. Global Change Research Program and Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 2001 Budget. Published 2000.
A report by the U.S. Global Change Research Program and the Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 2000 Budget. Published 1999
Workshop Rep. U. S. Global Change Research Program, Washington, DC, 1999
A report by the U.S. Global Change Research Program and the Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 1999 Budget. Published 1998.
A report by the U.S. Global Change Research Program and the Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 1998 Budget. Published 1997.
A report by the U.S. Global Change Research Program and the Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 1997 Budget. Published 1996.
A report by the U.S. Global Change Research Program and the Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 1996 Budget. Published 1995.