环境与气候变化问题引起越来越多人的重视，绿色理念已经逐步深入人心，美国大学也不甘示弱，纷纷改善学校的设施，让大学变得越来越“绿”，为环境保护尽一份力。美国Sierra Club发布了第三届年度“最绿”的大学。广大学生和家长也可以参考这个排名，这些大学至少在校园环境方面是一流的。哈佛大学也加强了生态环境方面的改善，在这次排名中位列第十一。Recently, the Sierra Club released its third annual ranking of "Cool Schools," which rates ecological awareness and sustainability efforts among top colleges and universities. Seeking a comprehensive overview of each campus’s eco-enlightenment, the Sierra Club sent a lengthy questionnaire to sustainability experts at hundreds of colleges and universities. The survey covered eight categories: efficiency, energy, food, academics, purchasing, transportation, waste management, and administration. Schools could earn up to ten points in each category; they were also awarded as many as five bonus points for additional green initiatives。The top ten schools (in order) were (以下为前10名“最绿”的大学)1.   University of Colorado, Boulder 科罗拉多大学2.   University of Washington Seattle 西雅图华盛顿大学3.   Middlebury College4.   University of Vermont 佛蒙特大学5.   College of the Atlantic 大西洋大学6.   Evergreen State College7.   University of California, Santa Cruz 加州大学圣克鲁兹分校8.   University of California, Berkeley 加州大学伯克利分校9.   University of California, Los Angeles 加州大学洛杉矶分销10. Oberlin College. 欧柏林学院Harvard University was number 11. Many elite universities have realized that in order to compete for the best students, they need to take into account eco-enlightenment Harvard University leads the pack in energy efficiency, Yale University revolutionized its food operations, and the University of California at Los Angeles reorganized its waste management system。以下为完整“最绿”大学排名名单：Rank School1 University of Colorado, Boulder2 University of Washington, Seattle3 Middlebury College4 University of Vermont5 College of the Atlantic6 Evergreen State College7 University of California, Santa Cruz8 University of California, Berkeley9 University of California, Los Angeles10 Oberlin College11 Harvard University12 University of New Hampshire13 Arizona State University, Tempe14 Yale University15 University of Florida, Gainesville16 Bates College17 Willamette University18 Warren Wilson College19 Dickinson College20 New York University21 Georgia Tech22 Tufts University23 Duke University24 University of California, Davis25 University of Oregon26 Stanford University27 University of California, Irvine28 Bowdoin College29 Columbia University30 Johns Hopkins University31 Carnegie Mellon University32 Emory University33 University of California, San Diego34 California State University, Chico35 Green Mountain College36 St. Olaf College37 SUNY College of Environmental Science and Forestry38 Unity College39 University of California, Santa Barbara40 Oregon State University41 Carleton College42 Colorado State University43 Central Michigan University44 SUNY Binghamton45 University of Pennsylvania46 Washington University in St. Louis47 Ithaca College48 Furman University49 Berea College50 University of Montana