Oct 23, 2012 — There are lots of lines of evidence telling us our current model for cities is unsustainable. Does that mean cities themselves are the problem and we should all move back to the farm?
Oct 9, 2012 — The vast web of geometries traced out in light shows you cities as a kind of infestation. They're like living networks spreading across the planet.
Dec 12, 2011 — In the first hour of Talk of the Nation, the are cities the cure to the world's population boom, and the secret world of child brides. In the second hour, do we have enough water to feed a growing world population, and scenes from Japan's nuclear disaster.