ASU's reputation for sustainability leadership continues to grow, corroborated by its standing in Sierra magazine's latest “Cool Schools” ranking of North America’s greenest colleges and universities. Named first among institutions with more than 10,000 students — up from second in that category last year — ASU sits in seventh place overall, according to the listing. It was compiled using surveys from a record-breaking 227 schools, as well as a customized scoring system based on universities' commitment to upholding high environmental standards. This is the third consecutive year ASU has scored in the top 20. The 2017 ranking does not yet reflect the impact of the Red Rock Solar Plant, dedicated in January 2017. Over the course of its first full year in operation, Red Rock will reduce ASU’s total carbon footprint by more than 10 percent.