Energy to 2050: Scenarios for a Sustainable Future
With this book, the IEA explores a longer time horizon using two types of long-term scenarios: "exploratory scenarios" and "normative scenarios". Exploratory scenarios are based on the correct identification of a few critical uncertainty factors and are designed to explore several plausible future configurations of the world, based on different expectations of technical and/or policy developments over the near- to medium-term.
http://www.iea.org/textbase/nppdf/free/ ... 0_2003.pdf

