Over the next 30 years virtually all urban population growth will take place in the developing world. The Rockefeller Foundation's Informal City Dialogues: http://www.nextcity.org/informalcity.
A partnership between Next City and Forum for the Future, Informal City Dialogues homes in six cities: Accra, Bangkok, Chennai, Lima, Manila and Nairobi. These are places of extraordinary energy. The informal realms, from single-chair barbershops to nine-passenger vans to sprawling settlements, are prope