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National Assessment On Climate ChangeThe National Assessment on Climate Change (NACC) was a massive multidisciplinary effort to study and portray in regional detail the potential effects of human-induced global warming on the United States. The project was articulated into some 20 regional studies - each involving dozens of scientific and academic experts as well as representatives of industry and environmental groups. The final reports synthesizing regional and national findings were published in November 2000, titled "National Assessment of the Potential Consequences of Climate Variability and Change." http://www.usgcrp.gov/usgcrp/nacc/default.htm The National Assessment was mandated by the United States Congress under the Global Change Research Act of 1990. The National Assessment received criticism from many of those who were involved in its early review. "Critics claimed that many of the model-projected impacts of possible future climate changes were overstated and unsubstantiated. The National Assessment Synthesis Team (NAST), with overall authority for the report, countered that much of the criticism it had received did not take into account the time scales upon which the report was based; the report targeted the effects of climate toward the middle of this century to the end of the next. Also, seemingly contradictory outcomes were produced by the two climate models selected for making the climate projections, casting some lingering doubt on the overall value and utility of the results for decision makers at the local, regional, and national levels. Various regional and resource-focused assessments are now available at the USGCRP website http://www.nacc.usgcrp.gov. A final synthesis report by the NAST, of the same title and consisting of an overview of all of the regional and sectoral studies, was released in December 2000."http://usinfo.state.gov/usa/infousa/tech/environ/9549.pdf The National Assessment was attacked upon publication by the Competitive Enterprise Institute (CEI), an industry-funded think tank with an anti-regulatory free-market philosophy and a longstanding history of opposing efforts to address global warming. CEI filed lawsuits seeking to have the NACC report declared unlawful and to suppress its dissemination. The NACC report has also been attacked by other industry-funded think tanks, including the American Enterprise Institute. Its critics claim that the report is flawed in its methodology and conclusions. EPA report In June 2002, the U.S. Environmental Protection Agency produced its own, separate report on climate change, titled the "Climate Action Report." http://yosemite.epa.gov/oar/globalwarming.nsf/content/ResourceCenterPublicationsUSClimateActionReport.html It reached conclusions similar to the NACC report and was also attacked by CEI, which used the occasion to call for the firing of EPA head Christine Todd Whitman. http://dynamic.greenpeace.org/smoking-gun/CEImemo.swf See also External links
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