The old joke about how many <insert profession here> does it take to change a light bulb has been reexamined in a new way by the BBC. With global climate change increasingly upon us, the question isn't about changing a light bulb, but rather powering a light bulb, or make that light bulbs, TV, and shower. The BBC's show Bang Goes the Theory asks how many bicyclists does it take to power a house for a day?
Any guesses on the number of bicyclists? 8, 80, 800? Well, watch this video to find out. It'll make you think differently next time you take a shower.
by Paul DeMaio, MetroBike, LLC, a consultant to Arlington County Commuter Services.
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