The poll has some value in the degree to which it reflects public opinion. It has misleading aspects in emphasizing the numbers of the naysayers. There is the aspect of "If lots of other people believe as I do, then it must be right." This it is a poll of ignorance rather than being informative of the science and the beliefs of informed experts in a scientific field. A missing topic of information is where do the naysayers get their information. Given the disproportionate number of Republican naysayers, it suggests their news source is the notorious major nutworks such as Faux news. The blind leading the blind.

A rather in depth look changing attitudes and feelings about the Global Warming controversy. Good stats, Charts and perspective on the topic. Exactly why these slight changes have happened us not determined.