In what ways can the ozone layer repair itself?

The Ozone Hole repairs itself for 8 months out of every year. Take a look at the plots in the link vs. months of the year. This is because the primary cause of the ozone hole is that lack of sunlight in the Antarctic in the winter there. read more

The ozone layer that shields the Earth from the sun is showing the first signs of recovery, UN scientists have revealed. The gaping hole in the ozone layer above Antarctica – which in the 1980s caused a major environmental scare – has stopped growing, they have found. read more

Thus, the ozone layer can be repaired by reducing the concentration of anthropogenic chemicals reaching the stratosphere. In the last two decades, there has been a global effort to reduce the release of ozone-destroying chemicals, such as long-lived CFCs, into the atmosphere. read more