Did you know: For the first time in 2008 the world’s city dwellers outnumbered those in the countryside. The share of urbanites is projected to continue increasing, so that by 2030 some 60 percent of the world’s population will live in cities. For more information view the text and data in Chapter 6 of Plan B 4.0: Mobilizing to Save Civilization.
Watch Lester Brown's presentation at the NYT Energy for Tomorrow Conference from April 11, 2012. His panel is the Opening Plenary. Other notable speakers include Thomas Friedman, Steven Cho, Daniel Yergin, and T. Boone Pickins.