In a recently released free book by the Princeton Review, three-hundred and thirty universities in the United States and two in Canada are profiled as green four-year higher education institutions. The Princeton Review’s Guide to 332 Green Colleges, released on April 17, set out to profile these institutions for “[demonstrating] a strong commitment to sustainability in their academic offerings, campus infrastructure, activities, and career preparation.” The schools were scored on a Green Rating system based on data obtained from schools using a ten point survey questionnaire which included queries on a range of topics such as: mass transit programs like bike sharing and local housing, whether a school has a formal committee dedicated to sustainability on campus, and whether the school has a sustainability-focused undergraduate degree programs or an equivalent.