[Illustrations, footnotes and references available in PDF version]
A recent re-posting on the SPPI blog from the HockeySchtick site, with the title, “The 97% ‘Consensus’ is only 75 Self-Selected Climatologists” was a second look at the claim first made in January 2009, in a paper called “Examining the Scientific Consensus on Climate Change” by Peter Doran and Kendall Zimmerman, from the department of Earth and Environmental Sciences at the University of Illinois.
This was their stated aim:
“The objective of our study presented here is to assess the scientific consensus on climate change through an unbiased survey of a large and broad group of Earth scientists.”
It was roundly de-bunked at the time by several commentators and it would have been forgotten and consigned to its proper place in the dustbin, if it hadn’t been continually quoted by activists as fact.