Check out this article in the New York Post. It is about the first commercial-scale hydroponic rooftop farm that will be started in Jamaica by a company called Gotham Greens, NY. They will get most of their power from solar panels, they will have a cistern to capture water and they will deliver their produce in a bio-diesel van. Great idea! There are so many flat rooftops in New York City that could become green roofs.
I went here clicking goths! This post probably has a good consideration on google even if it wasn’t sadly the suff i was struggeling searching