On the cusp of Earth Day, April 22, we break out a quick-and-dirty list of the cleanest cities in the U.S. Planners often look for ways to green their own events, but what about siting meeting in a clean/healthy city to enhance attendees' experience?

Forbes published its list of cleanest cities in March. As the Midwest Insider, I lamented that no Midwestern cities made the cut, but two of our most popular U.S. convention destinations did, so perhaps you've chosen healthy sites before without even thinking about it. The top 5 (best first):

McAllen, TX
Little Rock, AR
Raleigh, NC
Orlando, FL
Las Vegas, NV

Does a city's cleanliness factor into your choice of meeting site? See destination guides for Little Rock, Raleigh, Orlando, and Vegas on the Cvent Destination Guide.