Exposing the problem

I don't know if this an effective way to bring about change, but you have to give them credit for their creativity and having the balls to do something. I couldn't find any photos.

From UPI

Mexico cyclists streak the capital
MEXICO CITY, June 13 (UPI) -- Cyclists rode through Mexico City in the buff to
protest increasing car traffic.
About two dozen cyclists sped through the congested streets of one of the
world's largest cities with the slogan "respect bike riders" painted on their
bodies Saturday, El Universal reported.
The demonstrators said they had to take extreme measures to address the
pollution problem in the capital and to prompt motorists to respect cyclists
and the few bike lanes in Mexico City.