Figure 4.

Per-capita fossil emissions of CO₂. Emissions per capita from 1990 to 1999 are shown by the circles. Emissions 5% below the 1990 Annex 1 rate over the period from 2008 to 2012 are shown by a line segment. Deduced global fossil emissions leading to the specified CO₂ concentration pathways (Fig. 2) that asymptote to constant concentrations at labeled values from 450 to 1,000 ppm are shown by the solid curves. Per-capita fossil emissions for Annex 1 and non-Annex 1 regions for the six SRES scenarios are shown separately by the curves with symbols.