Top 15 Greenest Colleges

08/28/2009 05:12 am ET | Updated May 25, 2011

The colleges were among 697 institutions that The Princeton Review included in their green ratings system. The green ratings were determined by using a university's sustainability policies, eco-friendly practices and eco-minded academic programs. In order to make the honor roll, schools had to score 99 points, which is the maximum available.

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