#4 Warren Wilson College
850 students, Swannanoa, North Carolina

Forgoing football games and frats, Warren Wilson's Fighting Owls work 15 hours per week plowing the college's organic fields or helping with ecofriendly building projects.

Offsets: Purchased renewable energy credits that offset 100 percent of campus electricity use.

Investments: No transparency or reported sustainable-investing policies.

If you go Stop by the Cow Pie Cafe, a student-run vegetarian eatery that serves mostly foods grown on campus.

Score: 88.5