From the YouTube Description:

chris-barnatt-save-the-worldThis video discusses how cities may change in the face of uncertain future food, energy and water supplies. It is presented by Christopher Barnatt, Associate Professor of Computing & Future Studies in Notingham University Business School, and the author of www.explainingthefuture.com.

[youtube]https://www.youtube.com/watch?v=NmRoc7_jVdo[/youtube]