Contributor(s): Enrique Peñalosa | Enrique Peñalosa, former Mayor of Bogotá and one of the world's most challenging urban thinkers, describes the urgent need for governments to create socially inclusive and well-designed transport systems, public spaces and cities. Addressing mobility, public space, equity, quality of life and social inclusion, Peñalosa will propose that inequality and exclusion are the main causes of the problems that affect cities in developing countries, particularly issues relating to mobility and sustainability. Enrique Peñalosa was mayor of Bogotá, 1998-2001, and now acts as a consultant on urban vision. His advisory work concentrates on sustainability, mobility, equity, public space and quality of life.