Michael Carley is a Professor of Planning and Housing at the Centre for Environment and Human Settlements, Heriot-Watt University, Edinburgh, Scotland. His most recent books include Sharing the World: Sustainable Living and Global Equity in the 21st Century and Urban Development and Civil Society (Earthscan).
Ian Christie is associate director of the London-based consultancy The Local Futures Group, and senior research associate with the think-tank Demos. His recent books include Sustaining Europe (Green Alliance/Demos).