This might sound like an odd request, but my stepmother is currently working on a new degree for her university students, and she's been asked to make it as sustainable as possible.
She'd love some ideas, so I thought I'd turn to the nerdfighters:
Here's a few ideas to get started:
-How to save money on student's travel (i.e. how many times they have to drive in for the classes)
-How to save paper
-How to save electricity (this kinda links to 'how to save paper', 'cause obviously anything which isn't written down will probably need to be electronic)
Looking forward to all your ideas :)