IPCC Fourth Assessment Report: Climate Change 2007
Climate Change 2007: Synthesis Report

Scenarios for GHG emissions from 2000 to 2100 in the absence of additional climate policies

Figure 3.1

Figure 3.1. Global GHG emissions (in GtCO2-eq per year) in the absence of additional climate policies: six illustrative SRES marker scenarios (coloured lines) and 80th percentile range of recent scenarios published since SRES (post-SRES) (gray shaded area). Dashed lines show the full range of post-SRES scenarios. The emissions include CO2, CH4, N2O and F-gases. {WGIII 1.3, 3.2, Figure SPM.4}