"Urban transport systems based on a combination of rail lines, bus lines, bicycle pathways, and pedestrian walkways offer the best of all possible worlds in providing mobility, low-cost transportation, and a healthy urban environment." –Lester R. Brown, Plan B 4.0: Mobilizing to Save Civilization.

July 09, 2009
Blog from the Smithsonian's Museum of American History about the "Conversation with Lester Brown" program on June 18, 2009.