"…Allen began growing vegetables in thousands of pots, making efficient use of limited greenhouse space. In cities such as Milwaukee and Chicago, where he has farms, vacant lots and flat garage rooftops can be ideal locations for gardens that produce fresh vegetables year-round, he said. He also created a self-sustaining system of fish farming, in which lake perch and tilapia are raised in water that also circulates to feed growing plants."
— NY Times. I’m digging on what Will Allen is doing.