The farm of the future is not a farm. It's a building. Thirty stories of hydroponics and chicken coops, running on wind power and recycled city wastewater. Nothing else would guarantee a steady food supply in these times of climate change, drought,
deforestation, topsoil depletion and pesticide-polluted runoff. Dr. Dickson Despommier at Columbia University believes his Vertical Farm Project is the solution to these problems, and will be profitable to boot.