The possibility of using warm water from power stations to control the temperature of plant and animal enclosures is examined. With the heat from a nuclear station such as the 330-MW(electric) gas-cooled reactor being built near Denver, Colorado, it appears that a good fraction of the fresh vegetable, poultry, and pork needs of a large city could be produced in a growing area near the power station, and that the profit incentive is high to both the grower and the utility.