"Brooklyn Grange is a commercial organic farm located on New York City rooftops. We grow vegetables in the city and sell them to local people and businesses. The goal is to improve access to very good food, to connect city people more closely to farms and food production, and to make urban farming a viable enterprise and livelihood."
An urban gardening project greens Johannesburg rooftops
A rooftop garden on a building in Durban, South Africa. In Johannesburg a nonprofit group is using rooftop gardens to teach farming skills to urban youths and to inform them about the effects of global warming.