Climate Change 2001:
Working Group I: The Scientific Basis
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Figure 3.13: Projected CO2 emissions leading to stabilisation of atmospheric CO2 concentrations at different final values. Panel (a) shows the assumed trajectories of CO2 concentration (WRE scenarios; Wigley et al., 1996) and panels (b) and (c) show the implied CO2 emissions, as projected with two fast carbon cycle models, Bern-CC and ISAM (see Box 3.7 and Figure 3.11). The ranges represent effects of different model parametrizations and assumptions as indicated in the text and in the caption to Figure 3.11. For each model, the upper and lower bounds (corresponding to low- and high-CO2 parametrizations, respectively) are indicated by the top and bottom of the shaded area. Alternatively, the lower bound (where hidden) is indicated by a dashed line.

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