Recycling in Schools!

My high school currently does not recycle, and it has turned into a problem regarding the students, not the administration. People just don't care, and it isn't possible to continue recycling when non-recyclables go in the recycling containers, and vise verse. I would like recycling to occur in our school once again. Does anybody have any effective ideas on how to promote this change?! Remember, these are the minds of high school students we are trying to change here! :)