Swarthmore's sustainability efforts are threaded through every part of campus life. In fact, they may be right over your head.

Swarthmore's campus is a showcase of modern green roof technology, with five buildings that together represent approximately 31,000 square feet. The newest roof, on Lang Performing Arts Center, was installed in 2013.

In this video, Lars Rasmussen of the College's Scott Arboretum gives a tour of David Kemp Hall's green roof. Since its installation in 2008, the roof has reduced rainwater runoff, air pollution, and saved energy on the top floor of the building by as much as 25 percent. 

"Swarthmore's green roofs are a beautiful example of our ongoing commitment to sustainability in building design, stormwater management, and site stewardship," says Sustainability Director Aurora Winslade. "They provide opportunities for teaching and research while improving the health of our buildings."

Learn more about green roofs in this Scott Arboretum video series. Arboretum staff routinely offer guided green roof tours of campus. The next tour will take place Wed., Sept. 21.