The foundation for the book is detailed city case studies on Bangalore, Bangkok, Dar es Salaam, Durban, London, Manizales, Mexico City, New York and Rosario. Each of these was led by authors who contributed to the IPCC’s Fifth Assessment and are thus acknowledged as among the world’s top specialists in this field. This book highlights where there is innovation and progress in cities and how this was achieved. Also where there is little progress and no action and where there is no capacity to act. It also assesses the extent to which cities can address the Sustainable Development Goals within commitments to also dramatically reduce greenhouse gas emissions. In this, it highlights how much progress on these different agendas depends on local governments and their capacities to work with their low-income populations.