The Green House Project

http://www.globalonenessproject.org/videos/greenhouseproject

In the inner-city of Johannesburg, The GreenHouse Project is turning one urban park into a seedbed for sustainable communities. The program takes a holistic approach to the city's challenges, integrating green building and design, efficient and renewable energy, recycling, organic farming and nutrition.

I think having community gardens in every city would be a great way to improve our way of life, because people would work together, and learn about nutrition.