Coleman (left) and Rybak do their thing.Lou Michaels13. Christopher Coleman, St. Paul.
Pop.: 274,000
14. R. T. Rybak, Minneapolis.
Pop.: 377,000
The Twin Cities are in the hands of two progressive mayors intent on doubling the metro region’s eco-efforts. Coleman and Rybak, elected in 2005 and 2001 respectively, have both made sustainability a priority — Minneapolis, for instance, doles out climate change grants to neighborhood organizations, while St. Paul created its own hybrid car-sharing program. Together, the two leaders have created an annual sustainability report and a green manufacturing initiative, and they’re bringing bike-sharing to town. It’s all part of an effort, they say, to make theirs the most livable cities in the country.