If it is, then I will catch a ride with someone else. If the campus too far to walk to, then I will use my old fashioned bicycle to get there.
Another thing that I can do is to always make sure that the light and air conditioner is turned off before I leave my room. There is no need to have these things switched on while no one is there in the room also. The cost of power is so expensive these days, so every little bit helps.
If other college students like me could take steps to reduce their energy use, then the world would be a much cleaner and environmentally-friendly place.