May 5, 2005 | How long could you survive without your car? For the many Americans who think nothing of driving 10 blocks to buy a gallon of milk, the answer is obvious. But before any of you dedicated pedestrians and die-hard cyclists start feeling smug, try this question: How long could you survive without talking?
Chances are, nowhere near as long as John Francis did. After a massive oil spill polluted San Francisco Bay in 1972, Francis gave up all motorized transportation. For 22 years, he walked everywhere he went -- including treks across the entire United States and much of South America -- hoping to inspire others to drop out of the petroleum economy. (Salon)