Pahl et al. (2005)
Also: Pahl et al. 2005
Comparative optimism for environmental risks
Pahl, S., Harris, P. R., Todd, H. A., & Rutter, D. R. (2005). Comparative optimism for environmental risks. Journal of Environmental Psychology, 25(1), 1-11. Link to abstract
doi:10.1016/j.jenvp.2004.12.004
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.