Changing sea levels
Internationally, there is still a long way to go before climate models accurately depict the effects that have been observed of increased precipitation in northern zones and reduced precipitation in the tropics. Nonetheless, the performance of models is improving each year, and it may soon be possible to use them to predict the likely future trends in rainfall, sunshine, and other parameters.

These climate models will provide input to agrid-based catchment model, which then provides input to a water balance model which is a powerful tool for use in planning future action.

[maybe some more info on whats being done within CEP

The Water Balance Model