 Student projects have included greening campus offices, running after-school environmental education programs for children in the Waltham schools, and cleaning up local streams and ponds.In addition, a student-led project in 2014 established a rooftop farm atop the Gerstenzang science building consisting of 1,500 potted milk crates.Students also have the option of taking courses with a "Community Engaged Learning" (CEL) aspect.