Found on Treehugger today: A group of transportation enthusiasts in Sao Paolo, Brazil studied various ways to get around that notoriously congested city by conducting an "Intermodal" experiment. Just how congested is Sao Paolo? (Hint: the city is home to more private helicopters than any other city in the world)
The graph at left shows that bicycling is not only the fastest way to get from point A to B (approx. 6 miles), but bicycling also has the smallest CO2 footprint.
Which makes the "health benefit" argument, well, superfluous.
Just for fun, watch the video of Bicycle vs. Helicopter below. That Brazilian biking music makes me pedal in my desk chair.
You can read the entire article HERE