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
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 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.
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.
This annotated bibliography presents the results of the review of the relevant peer-reviewed literature and reports from Federal, state, and local governments. It includes journal articles and publicly available reports in addition to a number of guides, websites, tools, and other resources developed for program and project managers interested in planning and conducting evaluations.
START, founded in 1992, promotes research-driven capacity building that advances knowledge generation and sharing on global environmental change (GEC) issues, including climate change. This biennial report described START's programs related to cities, agriculture, and adaptation in Africa and the Asia-Pacific region.
This technical background report serves as the basis for the Global Mercury Assessment 2013: Sources, Emissions, Releases and Environmental Transport (a summary for policymakers). It presents sources of mercury emissions to air and water, with the latest information on atmospheric and aquatic chemistry, fate, and transport.
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.
In mid-2011, a new NRC Committee to Advise the USGCRP was formed and charged to provide a centralized source of ongoing whole-program advice to the USGCRP. The first major task of this committee was to provide a review of the USGCRP draft Strategic Plan 2012-2021 (referred to herein as "the Plan"). This review addresses an array of suggestions for improving the Plan, ranging from relatively small edits to large questions about the Program's scope, goals, and capacity to meet those goals.
This report is an educational summary of the Snow, Water, Ice, and Permafrost in the Arctic (SWIPA) assessment.
This Special Report of the IPCC Working Groups I and II explores the social as well as physical dimensions of weather- and climate-related disasters, considering opportunities for managing risks at local to international scales.