Share 'San Francisco's Latest Eco-Innovation: Growing Produce Almost Everywhere'

— By Josh Harkinson Is the future of agriculture the neglected flower bed on Main Street? The San Francisco Chronicle reports today that Mayor Gavin Newsom has ordered all city departments "to conduct an audit of unused land--including empty lots, rooftops, windowsills and median strips--that could be turned into community gardens or farms." If the Mayor gets his way, you could just as well get…