The New York Times ran a story this week on a grassroots effort that aims to demonstrate the potential for growing food in our cities. NY Sun Works‘ Center for Sustainable Engineering has a sustainable energy and hydroponics project floating on a barge in the Hudson River, and it’s causing a minor buzz …

Their goal is to get Big Apple rooftops under full production: they claim there is enough rooftop space in the five boroughs to grow vegetables for the entire city of New York. Vegetables are only part of the picture of feeding all those folks, of course, but this is a start. Besides the rooftops, one could imagine lots of old barges pulled up along piers along the river fronts around the city, growing produce today on the composted remains of last month’s veggies …