IPCC_2007_fig3-2.eps

Figure 3.2. Left panel: Solid lines are multi-model global averages of surface warming 
(relative to 1980-1999) for the SRES scenarios A2, A1B and B1,
shown as continuations of the 20th century simulations. 
The orange line is for the experiment where concentrations were held constant at year 2000 
values. The bars in the middle of the figure indicate the best estimate (solid line within
each bar) and the likely range assessed for the six SRES marker scenarios
at 2090-2099 relative to 1980-1999. The assessment of the best estimate and likely ranges 
in the bars includes the Atmosphere-Ocean General Circulation Models (AOGCMs) 
in the left part of the figure, as well as results from a hierarchy of 
independent models and observational constraints.
Right panels: Projected surface temperature changes for the early and late 21st century 
relative to the period 1980-1999. The panels show the multi-AOGCM
average projections for the A2 (top), A1B (middle) and B1 (bottom) SRES scenarios averaged
over decades 2020-2029 (left) and 2090-2099 (right).