AP – The Associated Press-Stanford University Environment Poll on global warming was conducted by GfK Roper Public Affairs & Media from Nov. 17-29, 2009. It is based on landline telephone and cell phone interviews with a nationally representative random sample of 1,005 adults. Interviews were conducted with 705 respondents on landline telephones and 300 on cellular phones.

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How the poll on global warming was conducted
(AP)