The mid-Pliocene warm period (~ 3.0 Mya) is considered as an analogue to the future climate and therefore successful modelling of this time period with climate models can help us understand the uncertainties and biases in the predictions of these models for the future climate. In this talk I will discuss my attempts to reconstruct boundary conditions for the mid-Pliocene such as the eustatic sea-level, topography, bathymetry and the land-sea mask that would be incorporated into climate models. The earth-system topics that will be covered in this talk will range from mantle convection to ice-ages and sea-levels to climate modelling.