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).

Please note that we are currently experiencing shipping delays of at least two weeks. Thank you for your patience.

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

Ocean acidification is occurring at a rapid and accelerating pace, and the Arctic Ocean is on the frontline of this global change . AMAP’s 2013 assessment of Arctic Ocean acidification provides the first Arctic-wide perspective on today’s progressively increasing seawater acidity.

The 2009 Arctic Marine Shipping Assessment (AMSA) called for the Arctic States to identify areas of heightened ecological and cultural significance in light of changing climate conditions and increasing multiple marine uses. This report identifies those areas.

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.

Our Changing Planet: The U.S. Global Change Research Program for Fiscal Year 2013

A report by the U.S. Global Change Research Program and the Subcommittee on Global Change Research. A supplement to the President's Budget for Fiscal Year 2013.

US CLIVAR is a national research program investigating the variability and predictability of the global climate system on time scales ranging from seasons to hundreds of years, with a particular emphasis on the role of the ocean.

This 2012-2021 Strategic Plan builds on past USGCRP Strategic Plans and the accomplishments of the USGCRP, and recognizes that effective response to global change requires a strong scientific foundation. The Plan continues to encompass both the fundamental research that improves understanding, as well as the research necessary to inform responses to climate and global change.

The Strategic Plan fulfills Congress's mandate in the Global Change Research Act to develop a program to "understand, assess, predict, and respond to" global change. It reflects recommendations from multiple reports of the National Academies, from dozens of listening sessions with stakeholders around the country, and from collaborative planning among the U.S. Global Change Research Program (USGCRP) member agencies. Altogether, the USGCRP envisioned through this Strategic Plan, by connecting fundamental human and Earth system research with the translation and dissemination of credible and

A report by the Climate Change Science Program and the Subcommittee on Global Change Research. A supplement to the President's Fiscal Year 2009 Budget. Published 2008.

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.

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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 Ocean Acidification Assessment: Summary for Policymakers

Identification of Arctic Marine Areas of Heightened Ecological and Cultural Significance: Arctic Marine Shipping Assessment (AMSA) IIC

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

Our Changing Planet: The U.S. Global Change Research Program for Fiscal Year 2013

US Climate Variability & Predictability Program Science Plan

The National Global Change Research Plan 2012-2021 [Factsheet]

The National Global Change Research Plan 2012–2021: A Strategic Plan for the U.S. Global Change Research Program

Our Changing Planet: The U.S. Climate Change Science Program for Fiscal Year 2009

North American Continental Margins: A Synthesis and Planning Workshop