465. Bright Idea: Vertical Farming August 27, 2007Posted by Matt Fleming, PsyD in Food and Drink, Service.
Pictured on the right are two levels of an imagined circular greenhouse. Build 15 vertical farms with 30 levels each, and you can feed 1 million people, according to the man with the idea, Dickson Despommier.
Rooftop solar panels will power 24-hr grow lights; evaporating water is captured for irrigation; since the building requires only a small footprint, build one near a city-center to drastically decrease delivery costs. A 21-level farm is predicted to cost $84 million, with operating costs at $5 mil a year, with a revenue of $18 mil a year. Via Business2.0.