The Parties to the United Nations Framework Convention on Climate Change (UNFCCC) are contemplating a range of goals for
limiting the rise in global average temperature that is resulting from
rising concentrations of greenhouse gases in the atmosphere.
Whatever temperature goal is eventually agreed by the Parties, its
achievement will depend on the extent to which global emissions
of greenhouse gases can be limited and reduced. This study explores a variety of potential paths for annual global emissions of greenhouse gases which would offer a reasonable chance of limiting a rise in global average temperature to no more than 1.5