FedCenter.gov


Nov. 27, 2018
Fourth National Climate Assessment Report Now Available
This report is published in response to mandates established in The Global Change Research Act of 1990. The Fourth National Climate Assessment (NCA4) fulfills that mandate in two volumes. This report, Volume II, draws on the foundational science described in Volume I, the Climate Science Special Report (CSSR) [issued in 2017]. Volume II 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. The National Oceanic and Atmospheric Administration (NOAA) served as the administrative lead agency for the preparation of this report. A Federal Steering Committee, composed of representatives from U.S. Global Change Research Program (USGCRP) agencies, oversaw the report's development.
 


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