This year, I found it invigorating to see the award go to Kimberly Wasserman Nieto, who is one of the most committed and determined leaders in the long fight waged in my city to close Chicago's Fisk and Crawford coal plants.
While many leaders talk about the urgency of transitioning to clean energy, Mayor Rahm Emanuel is acting, and making major changes that will deliver cleaner air and new jobs for Chicago in the near future.
There are hundreds of coal plants around the country where utilities are using everything short of duct tape, baling wire and chewing gum to keep them running. Why? It's cheap for the plants to be dirty.