Table of Contents: September/October 2012
Cover: Artwork by CHARLES WILLIAMS/AGENCYRUSH
Sierra's sixth annual ranking of America's greenest universities.
David Orr wants to turn everything emerald. First in his college town, then across the world.
Two young eco-geniuses chose separate paths.
CAROLYN COTNEY & JAKE ABRAHAMSON
Venture capitalists mine schools for clean-tech entrepreneurs.
Sierra Student Coalition activists push schools to clean up their acts.
At India's Barefoot College, unschooled women from all over the world become solar engineers.
Climbing and kayaking fixed Fayetteville's economy, but now a mountaintop-removal mine might bust it again.
Eco-repellents that really work, including a DIY mosquito spray.
You're deep in the woods when a tree catches fire. Now what?
Juicing cars vs. electric roadways
World's coolest student center
º Nurse shows kids wild time
º Dancing polar bears
The ants go marching