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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). 

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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

 

Other Popular Reports

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 18 national topics, with particular attention paid to observed and projected risks, impacts, consideration of risk reduction, and implications under different mitigation pathways. Where possible, NCA4 Vol. II provides examples of actions underway in communities across the United States to reduce the risks associated with

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 reduction, and implications under different mitigation pathways. Where possible, NCA4 Vol. II provides examples of actions underway in communities across the United States to reduce the risks

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 a los riesgos observados y proyectados, la consideración de la reducción de riesgos, y las consecuencias de distintas trayectorias de mitigación. Donde era posible, el Volumen II de la NCA4 presenta ejemplos de acciones en progreso en comunidades dentro de los Estados Unidos para reducir los riesgos asociados con el cambio

Executive Summary: Climate Science Special Report: Fourth National Climate Assessment (NCA4), Volume I

CSSR Cover
As a key part of the Fourth National Climate Assessment (NCA4), the U.S. Global Change Research Program (USGCRP) oversaw the production of this stand-alone report of the state of science relating to climate change and its physical impacts. The Climate Science Special Report ( CSSR ) is designed to be an authoritative assessment of the science of climate change, with a focus on the United States, to serve as the foundation for efforts to assess climate-related risks and inform decision-making about responses. In accordance with this purpose, it does not include an assessment of literature on

Climate Science Special Report: Fourth National Climate Assessment (NCA4), Volume I

Climate Science Special Report: Fourth National Climate Assessment, Volume I
As a key part of the Fourth National Climate Assessment (NCA4), the U.S. Global Change Research Program (USGCRP) oversaw the production of this stand-alone report of the state of science relating to climate change and its physical impacts. The Climate Science Special Report (CSSR) is designed to be an authoritative assessment of the science of climate change, with a focus on the United States, to serve as the foundation for efforts to assess climate-related risks and inform decision-making about responses. In accordance with this purpose, it does not include an assessment of literature on

State Climate Summaries

These State Climate Summaries were produced to meet a demand for state-level information in the wake of the Third U.S. National Climate Assessment, released in 2014. The summaries cover assessment topics directly related to NOAA’s mission, specifically historical climate variations and trends, future climate model projections of climate conditions during the 21st century, and past and future conditions of sea level and coastal flooding.