The UN Climate Change Report 2007 at a Glance

Detailed Scenario for Temperature Increase (5/10)

The most likely global warming scenario is called A1B. It describes a world of very rapid economic growth with a population that peaks around mid-century and declines thereafter. New and more efficient technologies are introduced rapidly. Regional differences in per capita income diminish. Energy comes from a number of well-balanced sources. Still, temperatures increase by up to six to seven degrees Celsius in the Arctic, about three degrees in Europe, and three to four degrees in Asia and the Americas (Graphic: IPCC).