*For instance, the Princeton Review gives 703 colleges “Green Ratings” in the 2011 editions of its annual college guides. It says that in a recent survey of 12,000 college applicants and parents, “64 percent of respondents said they would value having information about a college’s commitment to the environment. Within that cohort, 23 percent said such information would ‘very much’ impact their decision to apply to or attend a school.”