http://www.drugabuse.gov5. Richard Daley, Chicago.
Pop.: 2.8 million
Since announcing his intention to make Chicago the country’s greenest metropolis, Daley has made great strides. Green roofs cover or are planned for 3 million square feet, topping everything from City Hall to a McDonald’s. Redevelopment and landscaping have revitalized gathering places across the city, from prominent landmarks like Grant Park to neighborhood playgrounds. And the Windy City is committed to increasing its use of renewable energy (though a recent revelation showed things lagging in that area). Chicago is even bidding to host the 2016 Olympics — a bid that hinges on the event being the greenest Olympics in history.