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

 

Other Popular Reports

  • Our Changing Planet: The U.S. Global Change Research Program for Fiscal Year 2021
  • 2nd State of the Carbon Cycle Report (SOCCR2)
  • The Impacts of Climate Change on Human Health in the United States: A Scientific Assessment
  • The National Global Change Research Plan 2012-2021: A Triennial Update
  • National Global Change Research Plan 2012–2021

Arctic Ocean Acidification Assessment 2018: Summary for Policy-Makers

Arctic Ocean Acidification

AMAP, 2019. Arctic Ocean Acidification Assessment 2018: Summary for Policy-Makers

AMAP Assessment 2018: Biological Effects of Contaminants on Arctic Wildlife and Fish

Arctic, Wildlife and Fish

This assessment report presents the results of the 2018 AMAP Assessment of the Biological Effects of Contaminants on Arctic Wildlife and Fish. The assessment updates information presented in the AMAP POP's assessment delivered in 2009, specifically with respect to information on biological effects of organohalogenated compunds (OHCs), and the AMAP assessment of Mercury in the Arctic that was delivered in...

AMAP Assessment 2018: Arctic Ocean Acidification

Arctic Ocean Acidification

This assessment report presents the results of the 2018 Arctic Monitoring and Assessment Programme (AMAP) assessment of Arctic Ocean Acidification. This is the second such assessment dealing with ocean acidification from an Arctic-wide perspective , and complements several assessments that AMAP has delivered over past years concerning the effects of climate change on Arctic ecosystems and people. 

Overview: Fourth National Climate Assessment Volume II: Impacts, Risks, and Adaptation in the United States

The Overview is a summary of the findings of NCA4 Vol. II, as presented in Chapter 1 of the full report.

The Overview is a summary of the findings of NCA4 Vol. II, as presented in Chapter 1 of the full report.

Volume II of the Fourth National Climate Assessment focuses on the human welfare, societal, and environmental elements of climate change and variability for 10 regions and...

Report-in-Brief: Fourth National Climate Assessment Volume II: Impacts, Risks, and Adaptation in the United States

The Report-in-Brief consists of the NCA4 Vol. II Front Matter, Overview, and Executive Summaries of each chapter.

The Report-in-Brief consists of the NCA4 Vol. II Front Matter, Overview, and Executive Summaries of each chapter.

Volume II of the Fourth National Climate Assessment focuses on the human welfare, societal, and environmental elements of climate change and variability for 10 regions and 18 national topics, with particular attention paid to observed and projected risks, impacts, consideration of risk...

Informe Resumido: Volumen II de la Cuarta Evaluación Nacional del Clima: Impactos, Riesgos, y Adaptación en los Estados Unidos

 
Volumen II de la Cuarta Evaluación Nacional del Clima (NCA4, por sus siglas en inglés) se centra en los elementos del bienestar humano, sociales, y ambientales del cambio climático y la variabilidad para las 10 regiones y los 18 tópicos nacionales, con atención especial...

2nd State of the Carbon Cycle Report (SOCCR2)

The Second State of the Carbon Cycle Report (SOCCR2) provides a current state-of-the-science assessment of the carbon cycle in North America and its connection to climate and society.

The Second State of the Carbon Cycle Report (SOCCR2) provides a current state-of-the-science assessment of the carbon cycle in North America and its connection to climate and society. Information from the report is relevant to climate and carbon research as well as to management practices in North America and around the world.

Report-in-Brief: 2nd State of the Carbon Cycle Report (SOCCR2)

The Report-in-Brief includes plain-language highlights and the technical executive summary.

The Report-in-Brief includes plain-language highlights and the technical executive summary.

The Second State of the Carbon Cycle Report (SOCCR2) provides a current state-of-the-science assessment of the carbon cycle in North America and its connection to climate and society. Information from the report is relevant to climate and carbon research as well as to management practices in North America and around the...

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