Sierra magazine, the national magazine of the Sierra Club, has placed the University of Massachusetts Amherst at No. 7 in its 12th annual “Cool Schools” ranking of North America’s greenest colleges and universities. Released today, the 2018 rankings show UMass Amherst jumped into the top 10 from No. 58 last year. A record 269 schools in 36 states, the District of Columbia and Canada submitted applications.