You want to protect ozone layer. It is a hell precious layer for us.
We don't want to protect the depletion of ozone, we want to protect the ozone layer. See the related question below.
See "What can we do to protect the ozone layer?" in the "Related questions" section below.
We want the ozone layer desperately. It is due to the fact that it is very important for us.
The ban on CFC is good for ozone layer. Ozone does not want anything but absence of pollution.
You do not want to overcome ozone layer. It is vital for life on earth.
Ozone layer is a magical cover of ozone gas. It protects us from UV rays.
then the air would go into space and we would freeze to death
To prevent further depletion of the ozone layer, we can reduce our use of ozone-depleting substances such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). This can be achieved by switching to alternative substances and technologies that are ozone-friendly. International agreements like the Montreal Protocol have been instrumental in phasing out ozone-depleting substances globally.
Ozone layer depletion is the depletion of ozone. It has very bad affect on environment,
You cannot built thousand nanobots. And they would not survive in the ozone.
You would never want to prevent the ozone layer. This is needed to keep life tolerable on the planet. Without this 3 mm thick layer of gas we would have too much UV-B hitting our planet. If you are asking how to prevent the "hole" in the ozone that occurs for short periods each year. This can't be stopped as it is from the angle of our planet versus the sun. When sunlight cannot reach the ozone layer, the ozone decays into oxygen.
The ozone layer is mainly damaged by human-made chemicals called chlorofluorocarbons (CFCs) and other ozone-depleting substances. When released into the atmosphere, these chemicals break down ozone molecules, resulting in thinning of the ozone layer. This thinning allows more harmful ultraviolet radiation from the sun to reach the Earth's surface, increasing risks of skin cancer, cataracts, and harm to marine life.