ABSTRACT
At the time of writing, more than half of mankind, some 3.3 billion people, are living in urban areas. By 2030, this is expected to swell to almost five billion.2 We are simultaneously experiencing a global food crisis resulting from low productivity, government policies diverting food crops to the creation of biofuels, climate change, and intensifying demands from an exponentially expanding population. 'The world is heading for a drop in agricultural production of 20 to 40 percent, depending on the severity and length of the current global droughts. Food producing nations are imposing food export restrictions. Food prices will soar and, in poor countries with food deficits, millions will starve.3
