Check out Treehugger.com’s list of five cities you might want to put on your travel itinerary. Their choices made the list for a variety of reasons: from surveys of renewable energy use, to options in transportation, to recycling efforts, to overall green living, and everything in between. Let’s go! 5 of the Greenest Cities to Visit Christine Lepisto/Treehugger.com June 17, 2009 What is it that gives a city title to the claim of “greenest?” How would you like to visit a city with n