The National Climate Assessment (NCA) is a United States government interagency ongoing effort on climate change science conducted under the auspices of the Global Change Research Act of 1990. NCA is a "major product" of the U.S. Global Change Research Program (USGCRP) which coordinates a team of hundreds of experts guided by a sixty-member Federal Advisory Committee. NCA research is integrated and summarized in the mandatory ongoing National Climate Assessment Reports.
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