Non-climatic scenarios (income, population size etc.) IPCC data distribution centre (U.K.), IPCC data distribution centre (America) or the SRES emission scenarios home page

Climate Change 2001: The Scientific Basis Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change. J.T. Houghton, Y. Ding, D.J.Griggs, M. Noguer, P.J.van der Linden, and D. Xiaosu (eds) Cambridge University Press or downloadable from the web in various languages here.

N.B.

Scenario 1 corresponds to IPCC scenario SRES A1FI

Scenario 2 corresponds to IPCC scenario SRES A1T

Scenario 3 corresponds to IPCC scenario SRES A2

Scenario 4 corresponds to IPCC scenario SRES B2