If you think college students keep members of "the establishment" on their toes, you should see what effect high school students have. MPIRG (Minnesota Public Interest Research Group) has had a chapter at UMD since 1971, and even all these years later, incoming freshmen arrive with a passion to make a difference. Even fifty years after the first Earth Day, students at UMD are galvanized by environmental justice issues, and they're already pulling details together for the next environmental