Until the gases reach their maximum possible temperature the surface will be a little cooler than it otherwise would have been. (newclimatemodel.com)
The liquid or gas being pumped over the higher temperature surface to keep it at that temperature. (scienceofdoom.com)
Here we use a general ocean circulation model to test the hypothesis that this relation is due to the reduced sensitivity of seawater density to temperature at low mean temperature; that is, at lower temperatures the surface cooling is not as effective at densifying fresh polar waters and initiating convection. (gfdl.noaa.gov)