Yes! The good news is that more ozone forms every day as ultraviolet radiation from the sun strikes the oxygen molecules in the atmosphere and makes ozone. The "ozone hole" that has started to form in the last few decades is due to the fact we are breaking down the ozone faster than the sunlight is creating it. Human pollution produces a number of different chemicals that cause the ozone to break down quickly and form the famous "hole". The most common family of ozone-breaking chemicals is called chlorofluorocarbons (CFC). Many people have worked hard to eliminate the use of CFC's and other dangerous chemicals worldwide. If we keep working on pollution control, then we can reduce the number of these chemicals in our atmosphere and the ozone layer should thicken again.