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.
Check out Lester Brown on The Big Picture with Thom Hartmann discussing the release of the IPCC's Fifth Assessment Report. He said it should serve as a wake-up call.