i was just asked to think about the solution to the ozone depletion and of course the solution to this is to reduce the harmful substance called CFC however the problem would be that i have to find the solution that let the kids at age of 5 can take part in that. i know that for us, as we are adult, we can buy the ozone friendly stuffs like air conditioner or refrigerator that does not release CFC. however for the kid, i really have no idea what they can do to participate in helping ozone