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The Greening of America’s Campuses

THE largest university in Oregon is camouflaged, its many parts spread among the tight urban canyons of downtown Portland. But one building at Portland State University stands out. It has a roof of grass, plants and gravel, like a slice of the high desert on the wet side of Oregon. It is 10 stories high, and inside, all the mechanical organs work with so little waste – pumping water, air and electricity to the 400 residents of the dormitory and, on lower floors, to classrooms – that it would impress even the thrifty New Englanders who founded Portland.