(CNNMoney.com) -- Forget the conventional wisdom that says veggies must be grown on vast farms in the Midwest. What if commercial-scale crops took root inside cavernous city warehouses, without sunlight or soil?
Call it urban farming 2.0. Over the past decade, city agriculture has largely been the province of non-profit organizations, school groups, renegade gardeners and restaurants sowing seeds on rooftops. But the newest breed of city farmers are businessfolk. In their hands, urban agriculture is scaling up to meet a rising demand in city centers for safe, organic and locally grown food.