ORONO — A new Princeton Review guide ranks the University of Maine as one of the nation’s most environmentally responsible colleges and universities. “The Princeton Review’s Guide to 311 Green Colleges: 2011 Edition” was released earlier today.  Available for download at http://www.princetonreview.com, the guide was developed in collaboration with the U.S. Green Building Council.  It read more UMaine Earns Princeton Review Acclaim for Sustainability Efforts