Did you know? A bicycle is a marvel of engineering efficiency, one where an investment in 22 pounds of metal and rubber boosts the efficiency of an individual mobility by a factor of three. On my bike I estimate that I get easily 7 miles per potato. For more information view the text and data in Chapter 6 of Plan B 4.0: Mobilizing to Save Civilization.
Minnesota Public Radio podcast, "Environmentalist Lester Brown Lays Out His Plan for Saving the Planet," of Brown's presentation at the University of Minnesota on Monday, November 16, 2009. Broadcast November 17, 2009.