Alley (2009)
Also: Alley 2009
Carbon Dioxide in Earths Climate History.
Alley, R. (2009). The Biggest Control Knob: Carbon Dioxide in Earths Climate History.Bjerknes Lecture, American Geophysical Union, Fall Annual Meeting 2009http://www.agu.org/meetings/fm09/lectures/lecture_videos/A23A.shtml
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.