The debate over global warming has intensified in recent weeks after a new NASA study was interpreted by skeptics to reveal that global warming is not man-made. While a majority of Americans nationwide continue to acknowledge significant disagreement about global warming in the scientific community, most go even further to say some scientists falsify data to support their own beliefs.

The latest Rasmussen Reports national telephone survey of American Adults shows that 69% say it’s at least somewhat likely that some scientists have falsified research data in order to support their own theories and beliefs, including 40% who say this is Very Likely. Twenty-two percent (22%) don’t think it’s likely some scientists have falsified global warming data, including just six percent (6%) say it’s Not At All Likely. Another 10% are undecided. (To see survey question wording, click here.)

The number of adults who say it’s likely scientists have falsified data is up 10 points from December 2009.



Fifty-seven percent (57%) believe there is significant disagreement within the scientific community on global warming, up five points from late 2009. One in four (25%) believes scientists agree on global warming. Another 18% aren’t sure.

Republicans and adults not affiliated with either major political party feel stronger than Democrats that some scientists have falsified data to support their global warming theories, but 51% of Democrats also agree.

Men are more likely than women to believe some scientists have put out false information on the issue.

Democrats are more likely to support immediate action on global warming compared to those from other party affiliations.

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The national survey of 1,000 Adults was conducted on July 29-30, 2011 by Rasmussen Reports. The margin of sampling error is +/- 3 percentage points with a 95% level of confidence. Field work for all Rasmussen Reports surveys is conducted by Pulse Opinion Research, LLC. See methodology.