The hole's in the ozone will grow, multiple and more will form. Then the poisonous gasses will enter the earth's atmosphere and we'll run out of oxygen and die. This will also mean the sun's rays will have less holding them back and we'll end up cooking to death.
The ozone layer will be destroyed causing the suns rays to get through no problem. Then we will all have to stay inside. But we can help in so many different ways
We'll probably all die.