Farnsworth & Lichter (2012)
Also: Farnsworth & Lichter 2012
The structure of scientific opinion on climate change
Farnsworth, S. J., & Lichter, S. R. (2012). The structure of scientific opinion on climate change. International Journal of Public Opinion Research, 24(1), 93-103 Link to PDF
doi: 10.1093/ijpor/edr033
References
All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.