In Search of the Sustainable Campus

With eyes on the future, universities try to clean up their acts

On the southern edge of the University of Florida's campus here, past the ag-school fields and within noseshot of the swine pens, Doug Renk is helping to build a new energy economy, one gallon at a time.

It looks like a scene out of The Road Warrior. Steel caldrons, propane tanks, and barrels of old fryer oil are lined up on a concrete platform, some of them connected in a complicated tangle of pipes, gauges, and valves. Mr. Renk, a research assistant at the university, is taking