Cooler, Cleaner Megacities, One Rooftop Garden at a Time Cairo-based organization Schaduf helps city dwellers grow leafy greens in hydroponic rooftop gardens (Photo courtesy of Schaduf) Learn more at Next City… Environment, CivicCynthia HirschhornJuly 28, 2021cities, urban gardens, environment Facebook0 Twitter LinkedIn0 0 Likes