“There’s a bait-and-switch occurring here. As Friedman spells out, all you need to do is actually look at Cook et al.’s own tables in their paper to see that others (including Cook himself in a subsequent paper!) are misrepresenting their findings. Only 1.6% of the surveyed abstracts clearly say that humans are the main cause of global warming. The 97.1% figure includes papers that merely claim that some amount of warming can be attributed to human activities. Many of the prominent scientists associated with the ‘denier’ label–such as Richard Lindzen, Roy Spencer, Pat Michaels, and Chip Knappenberger (whom I feature here a lot)–would fit into this ‘consensus.'”
http://consultingbyrpm.com/blog/2014/05/the-bogus-97-of-climate-scientists-agree-claim.html