Floating farm is the wave of the future

The first time I heard the term "urban farming," I thought it was one of those humorous oxymorons, like "military intelligence" or "jumbo shrimp." I grew up in rural America, the grandson of farmers, and the idea of fields of corn growing through concrete sidewalks, next to huge skyscrapers, seemed wacky. Turns out it's not. There are for-profit organizations out there creating urban farms on 10,000-square-foot New York City parcels - without soil. Supporters say growing food in water, called hydroponics, is the future and can provide healthier diets for city dwellers without having to truck food long distances. Read more>