The second and third decades of the 21st Century will be an unprecedented moment in human history. World population will move from 50% to 70% urban. A collaborative, sustainable approach to all aspects of this rapid urbanization is needed. The World Urban Campaign provides the necessary environment for collaboration. Coordinated by UN-Habitat, but owned and driven by a long list of committed partners, the World Urban Campaign is your opportunity to become part of the urban solution - yes, join the partnership today.