If we want to live good, and that the ozone layer hole doesn't worsen, we have to plant very trees and plants, because they give to us the oxygen that we need to breathe.
We have to clean, look after the envelonment and don't throw any rubbish for a best live in this planet.
we musn't soil the street and we musn't use sprays and aerosoles because this products contaminate the planet and this gasses go up to the ozone layer and provoke the hole that doesn't protect the earth for the ultraviolet rays.
Other solutions can be: dont't throw the oil of the food in the sink and take it to a motorboat, and don't use the car in everymoment, go walking or on bycicle because cars are very contaminated.