was observed in 1961-2008 (80%
vs. 61%), whereas the difference in
January is only 9% (71%
vs. 62%). In absolute terms, however, the projected warming
is larger in January than in April. Note that Fig. 3.1 hides the latter difference, because
the horizontal axis is scaled according to the range of interannual variability.
x The two observation-based distributions (1961-1990 and 1961-2008) differ
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