Ozone layer is a protective layer. The problem with it is its depletion.
Nothing is wrong with ozone layer. There is problem with absence of ozone layer.
They are depleting the ozone layer. they react with ozone and deplete it.
The main problem with ozone layer is the depletion. It is due to the reckless use of CFC's by humans.
The problem of ozone layer is worsening. It is due to many ODS working together.
Emissions are destroying ozone layer. They react with it to decompose it.
Poking holes in ozone layer is a problem. A hole in ozone would cause the ultraviolet radiations to enter the surface.
Montreal Protocol is signed by India and many others. This is a treaty to save our ozone layer.
Ozone is depleting. It is due to CFC's.
The ozone layer is breaking. It is because of the use of CFC's by humans.
No: the ozone layer is not getting thicker because of pollution. If anything, it is getting 'thinner'. Yes: CFCs do result in ozone breakdown. This is a major environmental problem and certainly not something humans should consider deliberately doing at this time.
CFC's cause problems to ozone layer. They help in its depletion.