From my in process book:
Bray and von Storch (2007) report the result of asking over 500 climate scientists to respond to the statement, "Climate change is mostly the result of anthropogenic causes." The mean of 3.62 for their 2003 data was in the middle of their scale, where 1 indicated “strongly agree” and 7 indicated “strongly disagree.” The nearest rating to the mean score was 4, indicating ambivalence or impartiality.
Similarly, there appears to be a large amount of disagreement in the joint conclusions of scientific advisory bodies. Holland (2007) notes the lack of support by the US National Research Council for the alarming conclusions of the IPCC. He states that two exhaustive and independent peer-reviewed studies by professionals, reporting under oath to the US House of Representatives have contradicted the findings of the IPCC. We conclude from this that the scientific bodies are not in agreement about climate change and its causes.
Finally, Essex et al. (2007, p. 1) state, "there is no physically meaningful global temperature for the Earth in the context of the issue of global warming." They argue that "any physical meaning is born by changes in energy instead of temperature" (p. 10). They conclude, "A given temperature ﬁeld can be interpreted as both 'warming' and 'cooling' simultaneously, making the concept of warming in the context of the issue of global warming physically ill-posed" (p. 1). In effect, they argue that the key term, "temperature" being used in the climate debate has no meaning in this context and that "global warming" is an oxymoron.
Bray D., von Storch, H. (2007). The Perspectives of Climate Scientists on Global Climate Change. Geesthacht, Germany: Institute for Coastal Research. (GKSS 2007/11) URL: <http://news.heartland.org/sites/all/modules/custom/heartland_migration/files/pdfs/21803.pdf>
Holland, D. (2007). Bias and Concealment in the IPCC Process: The “Hockey-Stick” Affair And Its Implications. Energy & Environment, 18(7-8), 951-983. URL: <http://www.klimarealistene.com/Holland%282007%29.pdf> (Downloaded Dec. 16, 2010)
Essex, C., McKitrick, R., & Andresen, B. (2007). Does a Global Temperature Exist? J. Non-Equil. Thermod., 32, 1-27. URL <http://www.fys.ku.dk/~andresen/BAhome/ownpapers/globalT/globalT_JNET2007.pdf>
(Downloaded 3 April 2015)