The Intergovernmental Panel on Climate Change (IPCC) was set up jointly by the United Nations Environment Programme and the World Meteorological Organisation in 1988 to provide an authoritative international consensus of scientific opinion on climate change. This report, Climate Change 1994 prepared by IPCC Working Groups I and II, reviews the latest scientific evidence on the following key topics: * Radiative forcing of climate change * The latest values of Global Warming Potential, a tool for comparing the potential effect on future climate of different anthropogenic factors * The stabilisation of greenhouse gas concentrations in the atmosphere * An evaluation of scenarios of future greenhouse gas emissions Climate Change 1994 forms part of a special Report for the United Nations Framework Convention on Climate Change negotiated at the 1992 Rio Earth Summit.