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Top 10 greenest colleges in America

<div class="meta "><span class="caption-text ">Appalachian State University ranked No. 10 on Sierra Magazine&#39;s 2012 list of America&#39;s Greenest Colleges. The rankings are based on the school&#39;s commitment to environmental improvements. (flickr&#47;ionntag)</span></div>
August 17, 2012 7:16:38 AM PDT