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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

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.

National Climate Assessment - Scenarios for Research and Assessment of Our Climate Future

The National Climate Assessment (NCA) Report Series summarizes regional, sectoral, and process-related workshops and discussions being held as part of the Third NCA process. The workshop on scenarios for research and assessment of our climate future was held in Arlington, Virginia on December 6-8, 2010. Volume 6 of the NCA Report Series summarizes the discussions and outcomes of this workshop.

National Climate Assessment: Physical Climate Indicators Workshop Report

This workshop focused on monitoring changes in the physical climate system, as part of a series that includes workshops on the impacts of climate change on ecosystems and socioeconomic systems. The workshop was held in Washington, D.C. on March 29-30, 2011.

National Climate Assessment - Climate Change Modeling and Downscaling

The National Climate Assessment (NCA) Report Series summarizes regional, sectoral, and process-related workshops and discussions being held as part of the Third NCA process. This workshop focused on questions, issues, and methodological perspectives regarding the use of mathematical models for the NCA, as well as the complexities that arise when applying data and models to multiple spatial and temporal scales....

SAP 1.2: Past Climate Variability and Change in the Arctic and at High Latitudes

Past Climate Variability and Change in the Arctic and at High Latitudes. A report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research.

Global Climate Change Impacts in the United States

Global Climate Change Impacts in the United States

This report is the Second National Climate Assessment. It summarizes the science of climate change and the impacts of climate change on the United States, now and in the future.

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

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.

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

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.

Conocimiento Climatico: Principios Esenciales de la Ciencia Climática

Climate Literacy: The Essential Principles of Climate Science [Spanish version] is an interagency guide that provides a framework and essential principles for formal and informal education about climate change. It presents important information for individuals and communities to understand Earth's climate, impacts of climate change, and approaches for adapting and mitigating change. Principles in the guide can serve as discussion...

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