[Fat Charlie]

Lots of places to get involved, and lots of places to make a school greener.

-How is the school heated? Any ways that it could be done more efficiently?
-How is the building cooled? Do they ever open the windows or do they just leave the HVAC running all year long?
-What about electricity usage? Are all the computers left on at night, Do lights get left on in empty classrooms?
-Do they allow the buses to idle?
-Can part of the school's "landscaping" be a student run garden?

Work with the departments to have environmental/efficiency factors worked into the curriculum.
-If the school does drivers ed, an Ultragauge on the dash showing nothing but instant and short route mpg would be a good idea, with classroom explanations about basic efficiency techniques.
-If the school doesn't do drivers ed, get with the driving schools in town!
-Other classes may be talked into using envirnmental examples in class.
-Is there a personal finance class? Fuel and other efficiency should be a core item there.

Awareness campaigns inside the school (get the club to be allowed to use some bulletin board space, etc.)- how much money different vehicles cost to operate per mile (compared to the bus, even), how much more oil houses burn when they turn the thermostat up a few degrees and how much insulation can save.

Encourage public transportation use by taking the bus unless sports/job schedule doesn't allow it. I'm not going to suggest that your club work to restrict student parking, because you'll get lynched.