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Reports Library

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.

Fourth National Climate Assessment Vol I + II

The Fourth National Climate Assessment (NCA4), completed in November 2018, is a comprehensive and authoritative report on climate change and its impacts in the United States. 

NCA4 Vol II: Impacts, Risks, and Adaptation in the United States

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Download the report and related materials
View or request a free copy of the Overview
View or request a free copy of the Report-in-Brief
Ver o solicitar una copia impresa gratuita del Informe Resumido 

NCA4 Vol I: Climate Science Special Report

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Download the report and related materials
View or request a free copy of the Executive Summary

 

Other Popular Reports

  • The U.S. Global Change Research Program 2022–2031 Strategic Plan
  • Our Changing Planet: The U.S. Global Change Research Program for Fiscal Year 2022
  • 2nd State of the Carbon Cycle Report (SOCCR2)
  • The Impacts of Climate Change on Human Health in the United States: A Scientific Assessment

Arctic Climate Issues 2015: Short-lived Climate Pollutants – Summary for Policy-Makers

This document presents the policy-relevant findings of the Arctic Monitoring and Assessment Programme's 2015 assessments of short-lived climate forcers (methane, black carbon, and ozone).

Vistas of African Science: Advancing Knowledge through START's Grants for Global Environmental Change in Africa Program

This report highlights eight years of START’s Africa Global Environmental Change (GEC) Grants Program, focusing on the significance and development of the program for GEC research in Africa and the major accomplishments of grant award recipients from 2004 to 2012.

IPCC. Climate Change 2007: Synthesis Report

IPCC Climate Change 2007: Synthesis Report

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.

IPCC. Climate Change 2007: The Physical Science Basis

IPCC Climate Change 2007: The Physical Science Basis

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.

IPCC. Climate Change 2013: The Physical Science Basis

IPCC Climate Change 2013: Summary for Policymakers

The Working Group I contribution to the IPCC’s Fifth Assessment Report (WGI AR5) provides a comprehensive assessment of the physical science basis of climate change.

Highlights of Climate Change Impacts in the United States: The Third National Climate Assessment

NCA3 Highlights cover thumbnail

The 148-page Highlights book presents the major findings and selected highlights from Climate Change Impacts in the United States: The Third National Climate Assessment. The Highlights report is organized around the National Climate Assessment’s 12 Report Findings, which take an overarching view of the entire report and its 30 chapters.

Overview of Climate Change Impacts in the United States: The Third National Climate Assessment

NCA3 Overview cover thumbnail

This 20-page booklet provides a high-level compendium of Climate Change Impacts in the United States: The Third National Climate Assessment. The Overview covers the most important impacts at the national level but does not attempt to provide a comprehensive summary of the entire assessment.

IPCC: Climate Change 2001. IPCC Third Assessment Report [CD]

IPCC Climate Change 2001. IPCC Third Assessment Report [CD]

This CD contains all four volumes of the IPCC Third Assessment Report in HTML and PDF formats.

Climate Change Impacts on the United States: The Potential Consequences of Climate Variability and Change [DVD]

National Assessment of the Potential Consequences of Climate Variability and Change

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.

IPCC. Climate Change 2013: The Physical Science Basis - Summary for Policymakers, Technical Summary and Frequently Asked Questions

IPCC Climate Change 2013: Summary for Policymakers

The Working Group I contribution to the IPCC Fifth Assessment Report (WGI AR5) provides a comprehensive assessment of the physical science basis of climate change. Here, the Working Group I report is summarized for both technical and policy audiences.

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