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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.
"There is no problem with global warming. It stopped in 1998. The last two years of global cooling have erased nearly 30 years of temperature increase."
"I’m a natural scientist. I’m out there every day, buried up to my neck in sh**, collecting raw data. And that’s why I’m so sceptical of these models, which have nothing to do with science or empiricism but are about torturing the data till it finally confesses."
"The hypothesis that human activity can create global warming is extraordinary because it is contrary to validated knowledge from solar physics, astronomy, history, archaeology and geology."
"To argue that human additions to atmospheric CO2, a trace gas in the atmosphere, changes climate requires an abandonment of all we know about history, archaeology, geology, solar physics, chemistry and astronomy."
"If natural forces drove warmings in Roman and medieval times, how do we know that the same natural forces did not drive the late 20th-century warming?"