Fig. 3: Change in projection uncertainty for mid-century climate change.

a The change in the 2041–2060 winter (DJF) surface-air temperature interquartile range in the MPI-GE-obs ensemble, with respect to the interquartile range in the MPI-GE-raw ensemble. b as in a but for the winter precipitation. c as in a but for the summer surface-air temperature. d as in a but for the summer precipitation. The black hatching indicates regions where the difference in the interquartile range between MPI-GE-obs and MPI-GE-raw is not statistically significant (at the 95% level, based on a Monte Carlo resampling, see ‘Methods’ for further details).