The INCM3, IPCM4, MPEH5 and NCCCSM models have all positive percentage changes for all three-emission scenarios (A1B, A2, B1), while HADCM3 model results show a negative percentage change in the B1 scenario, and GFCM21 projects all negative percentage changes under the three emission scenarios (Figure 11). Climate simulations for the next 100 years indicate that the rainfall regime in Colombo is likely to change. Figure 11 shows that there are five climate models
(out of the six selected) that predict Colombo’s annual rainfall increase with reference to the historical baseline value, which is consistent with recently observed meteorological trends