Harvard earned a top spot in this year’s Sierra Club annual “Cool Schools” ranking of North America’s greenest colleges and universities, the highest-ranking Ivy League institution recognized.

Harvard’s completion of its aggressive, science-based climate goal and holistic focus on enhancing well-being, specifically by targeting healthier building materials, were referenced in helping Harvard earn the 13th position in Sierra’s top 20 schools list.

“We continue to be inspired by the creative and innovative ways colleges and universities across the country are working to tackle the climate crisis and move toward a sustainable future,” said Jason Mark, Sierra magazine’s editor in chief. “From powering campuses with clean energy to educating students on new methods of sustainability, it is this leadership that is driving positive change and helping to shape a future that is clean, just, and equitable for all.”

According to the Sierra Club, each of the schools ranked in the top 20 have displayed a deep and thorough commitment to protecting the environment, addressing climate issues, and encouraging environmental responsibility. Using a customized scoring system, Sierra’s researchers ranked the universities based on their commitment to upholding high environmental standards.

To learn more about Harvard’s progress in creating a low-carbon, sustainable campus community visit the University-wide Sustainability Report published annually on Earth Day.