The ozone hole over the Antarctic is smaller. It is very small in the year 2025. The World Meteorological Organization reports this. The ozone layer protects the Earth from sun rays. People can get sick without this protection. For example skin cancer.
The layer heals since the year 2000. It can be completely healthy in a few decades. This is a big success for environmental protection. One reason is the Montreal Protocol from 1987. Many countries banned harmful substances then.
These substances are called CFCs. People used them in cooling systems before. They are banned almost everywhere today. But Europe has a problem. The sun shines longer there now. There are fewer clouds. Therefore dangerous UV radiation increased there.
