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.

This report, the First National Climate Assessment, includes analyses of the importance of climate variability and change for twenty regions around the United States, for five cross-cutting sectors, and for the United States as a whole. The DVD contains background information, public review drafts and final reports, citations, and high-resolution images.
Impacts of Climate Change and Variability on Transportation Systems and Infrastructure: Gulf Coast Study, Phase I. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research.
2008 scientific assessment of the effects of global change in the United States, with special emphasis on climate change.
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.