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.
Lester Brown in Do the Math Movie
April 24, 2013
Lester Brown makes an appearance in Do the Math: A Movie to Spark a Movement. Check out the full movie below.