The Greenest City Mayors

"Climate change is a global problem-but as of yet, there's no global solution. That's why mayors across the U.S. are taking action, from building green to organizing bike rides, from redeveloping downtowns to cutting emissions. Here are just a few of the municipal leaders who have worked to take our collective future into their own hands."

There's the expected usuals:
Michael Bloomberg, New York City
Greg Nickels, Seattle
Gavin Newsom, San Francisco
Richard Daley, Chicago

And a few surprises:
Ed Malloy, Fairfield, Iowa
Jerramiah Healy, Jersey City
Elaine Walker, Bowling Green, Ky

Click through for more about each of the top 15.