Street Art - Ride, don't drive

What lives when public transportation is used, and dies when it's not? Potentially all of us.

This message is hauntingly conveyed by a street art installation showing polar bears coming to life as a subway passes beneath them:

<a href="http://blogs.edf.org/climate411/2008/09/09/polar_bear_street_art/">http://blogs.edf.org/climate411/2008/09/09/polar_bear_street_art/</a>;