You want to see the future of sustainability, go to your nearest college campus. You'll find students leading the charge to promote recycling drives, proposing energy efficiency measures, and working with the school to reduce its solid waste and consume biodegradable cleaning products. You'll also find the schools completely embracing these efforts. The students have an eye to the future of the planet. The schools have an eye toward economic sustainability--they're forced to squeeze as much mileage out of a penny as they can, and they realize the tremendous cost savings in energy efficiency and waste reduction.
That's why it should come as no surprise to see this article in the Chronicle of Higher Education highlighting some schools that are taking advantage of their waste fryer grease to power campus lawnmowers and other vehicles.