Older surveys of scientists

* Global Environmental Change Report, 1990: GECR climate survey shows strong agreement on action, less so on warming. Global Environmental Change Report 2, No. 9, pp. 1–3
* Stewart, T.R., Mumpower, J.L., and Reagan-Cirincione, P. (1992). Scientists' opinions about global climate change: Summary of the results of a survey. NAEP (National Association of Environmental Professionals) Newsletter, 17(2), 6-7.
* In 1991, the Center for Science, Technology, and Media commissioned a Gallup poll of 400 members of the American Geophysical Union and the American Meteorological Society along with an analysis of reporting on global warming by the Center for Media and Public Affairs, a report on which was issued in 1992.[108] Accounts of the results of that survey differ in their interpretation and even in the basic statistical percentages:
o Fairness and Accuracy in Reporting states that the report said that 67% of the scientists said that human-induced global warming was occurring, with 11% disagreeing and the rest undecided.[109]
o George Will reported "53 percent do not believe warming has occurred, and another 30 percent are uncertain." (Washington Post, September 3, 1992). In a correction Gallup stated: "Most scientists involved in research in this area believe that human-induced global warming is occurring now."[110]
o A 1993 publication by the Heartland Institute reports: "A Gallup poll conducted on February 13, 1992 of members of the American Geophysical Union and the American Meteorological Society-the two professional societies whose members are most likely to be involved in climate research-found that 18 percent thought some global warming had occurred, 33 percent said insufficient information existed to tell, and 49 percent believed no warming had taken place."[111]

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In 1991, the Center for Science, Technology, and Media commissioned a Gallup poll of 400 members of the American Geophysical Union and the American Meteorological Society along with an analysis of reporting on global warming by the Center for Media and Public Affairs, a report on which was issued in 1992.[108] Accounts of the results of that survey differ in their interpretation and even in the basic statistical percentages:








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