Scientists estimate that one atom of chlorine can destroy 100 000 ozone molecules. The areas of largest ozone hole are Antarctica, South America, Australia, and New Zealand. The best protection is to stop producing these gases and destroying rain forests. It is worth replacing old power plants with nuclear power, which reduce the damage. Also nuclear power has its disadvantages, in this case there are alternative sources of energy: hydropower, solar power, geothermal etc. I think that the best way how to reduce pollution is reducing, reusing and recycling. .