Reports & Assessments

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).

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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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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View or request a free copy of the Executive Summary

Other Popular Reports

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 ).

The National Climate Assessment summarizes the impacts of climate change on the United States, now and in the future. A team of more than 300 experts guided by a 60-member Federal Advisory Committee produced the report, which was extensively reviewed by the public and experts, including federal agencies and a panel of the National Academy of Sciences. The report can be explored interactively at http://nca2014.globalchange.gov.

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.

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.

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 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 .

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.

4-page Companion Brochure of the Global Climate Change Impacts in the United States. A report of the U.S. Global Change Research Program. Published in 2009.

20-page Highlight Booklet of the Global Climate Change Impacts in the United States. A report of the U.S. Global Change Research Program. Published in 2009.

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.

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Reports Library

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

Other Popular Reports

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

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

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

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

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

IPCC. Climate Change 2013: The Physical Science Basis

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

Global Climate Change Impacts in the U.S. [Companion Brochure]

Global Climate Change Impacts in the U.S. [Highlights Booklet]

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