George C. Marshall Institute
conservative think tank and important climate denial organization

The George C. Marshall Institute (GMI) was a nonprofit conservative think tank in the United States. It was established in 1984 with a focus on science and public policy issues and had an initial focus in defense policy. Starting in the late 1980s, the institute advocated for views in line with environmental skepticism, most notably climate change denial. The think tank received extensive financial support from the fossil fuel industry.
Though the institute officially closed in 2015, the climate-denialist CO2 Coalition is viewed as its immediate successor. GMI's defense research was absorbed by the Center for Strategic and International Studies.
History
The George C. Marshall Institute was founded in 1984 by Frederick Seitz (former President of the United States National Academy of Sciences), Robert Jastrow (founder of NASA's Goddard Institute for Space Studies), and William Nierenberg (former director of the Scripps Institution of Oceanography). The institute's primary aim, initially, was to play a role in defense policy debates, defending Ronald Reagan's Strategic Defense Initiative (SDI, or "Star Wars"). In particular, it sought to defend SDI "from attack by the Union of Concerned Scientists, and in particular by the equally prominent physicists Hans Bethe, Richard Garwin, and astronomer Carl Sagan." The institute argued that the Soviet Union was a military threat. A 1987 article by Jastrow argued that in five years the Soviet Union would be so powerful that it would be able to achieve world domination without firing a shot.
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Chronology, provenance and viewpoint should be read together before a broad social or political interpretation is accepted. The source revision retrieved here is dated Aug 13, 2026. The linked authority identifier is Q5537564. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1984, 2015 and 1987.
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This entry incorporates text from “George C. Marshall Institute” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.