In French (with English subtitles) and well worth the time to watch. The award-winning Rooftop Garden Project is one of the most unique urban agriculture projects anywhere in the world.
These young people get it. What they advocate can be done either in groups or on a personal level at home.
You'll see that what they do relates to city dwellers of all ages including the very young and very old. They communicate a beautiful message to urbanites around the world.