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.

2008: North American Continental Margins: A Synthesis and Planning Workshop. Report of the North American Continental Margins Working Group for the U.S. Carbon Cycle Scientific Steering Group and Interagency Working Group.
2008 scientific assessment of the effects of global change in the United States, with special emphasis on climate change.
This report synthesizes the contributions of Working Groups I, II, and III to the IPCC’s Fourth Assessment Report, and also draws on recent IPCC Special Reports. It draws together policy-relevant scientific, technical, and socioeconomic information related to climate change, with the goal of assisting governments and other decision makers in formulating and implementing responses.
This report is the contribution of Working Group I to the IPCC’s Fourth Assessment Report. It provides insights into the effects of human activity on the atmosphere; contains an evaluation of observed climatic changes using the latest measurement techniques; includes a detailed review of climate change observations and modeling for every continent; and features the first probabilistic evaluation of climate model simulations.
The First State of the Carbon Cycle Report (SOCCR): The North American Carbon Budget and Implications for the Global Carbon Cycle [2007]. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research
Findings, Summary, and Frequently Asked Questions of the U.S. Climate Change Science Program Synthesis and Assessment Repor 2.2: The First State of the Carbon Cycle Report: North American Carbon Budget and Implications for the Global Carbon Cycle.
Includes the full report, technical summary, and summary for policymakers.
A report prepared for the U.S. Carbon Cycle Scientific Steering Group and Interagency Working Group by the North American Carbon Program Implementation Strategy Group.
This CD contains all four volumes of the IPCC Third Assessment Report in HTML and PDF formats.
This document is the Foundation report, which provides the scientific underpinnings for the Assessment.