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The U.S. intelligence community recently completed its first National Intelligence Estimate (NIE) on the implications of global climate change for U.S. security. Although the report remains classified, senior intelligence officials have begun presenting its major findings in Congress and at various think tanks. Most media commentary covered the findings of the NIE, but not the more interesting process by which the conclusions were reached. By the admission of the person in charge of the effort — Thomas Fingar, deputy director of National Intelligence for Analysis and Chairman of the national Intelligence Council — the climate change topic presents serious methodological […]