The survey by Doran and Zimmerman (2009) fails to produce evidence that would back up claims that there is a “scientific consensus” about the causes or consequences of climate change. They simply asked the wrong question. And the “98 percent” figure so often attributed to their survey refers to the opinions of only 79 climate scientists, which is not a representative sample of scientific opinion.
And the Anderegg et al. article (2010) should never be cited as proof that there is a “consensus” on the causes or consequences of climate change, or even on the matter of whether alarmists are more credible than skeptics.