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9.4 General Summary
Figure 9.31 summarises some of the model results for
projections of future climate change for the end of the 21st century. This figure
can be compared to one for observations from the 20th century in Chapter
2 (Figure 2.37). A number of the observed changes
are qualitatively consistent with those projected for future climate changes
from climate models. A confidence scale is provided for the model projections
in Figure 9.31, and is the same as the one used in the
Executive Summary. Since there is considerable agreement between the observations
in Figure 2.37 and the model results listed in
Figure 9.31, we conclude that many of the larger observed
climate changes to date are qualitatively consistent with those changes in climate
models for future climate with increases of greenhouse gases.
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Figure 9.31: Schematic of changes in the temperature and hydro-logical
indicators from projections of future climate changes with AOGCMs. This
figure can be compared with Figure 2.37 to
note climate changes already observed, to provide a measure of qualitative
consistency with what is projected from climate models.
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