Fig. 4: Future changes in mean sea surface temperature (SST).

Projected changes in SST, estimated from: (a) differences between the future projection using FC0 run and the present-day simulation (Pday). b to (d) are for the differences between the future projection using FC0 and the other three future runs (FC1 − FC0, FC2 − FC0, and FC3 − FC0), respectively.