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.
World Affairs Council Presentation by Lester Brown
December 03, 2009
Podcast of Lester’s presentation for the World Affairs Council in San Francisco Monday, November 9, 2009.