A system for algal fostering and fishery initiating and maintaining, and for reducing greenhouse gases, comprising a plurality of pumps having hoses for drawing deep, cold, and nutrient rich water from the bottom of an ocean and pumping it to the oceans surface, and a plurality of heat exchangers drawing the heat from the warmer waters surrounding the hoses, the plurality of heat exchangers being in heat communication with at least a portion of the hoses, for gradually warming the ascending deep, cold and nutrient rich water during its ascent through the hoses, so that it is substantially at oceans surface water temperature at the time it arrives at oceans surface.
