Fig. 2.

Zonal mean and hemispheric asymmetry of precipitation, temperature, and shortwave cloud radiative forcing. Annual mean zonal mean of (A) precipitation, (C) surface air temperature, and (E) shortwave cloud radiative forcing. (B, D, and F) The interhemispheric asymmetry (NH minus SH) of A, C, and E, respectively. Each line is colored according to the atmospheric cross-equatorial energy transport in each global climate model. The black lines are from GPCP and CERES observations. The gray lines represent the SD of year-to-year variability in observations.