This is just speculation based upon generalizations, but the kind of person who can figure out how to use a computer to the point that they know how to get to these forums, let alone actually POST to them, is also the kind of person who is refined enough to take their trash out with them.

So I would guess that you're preaching to the choir in here, unless we can figure out a way to reach the knuckle-draggers that leave their trash out in the field.