Ozone is depleting. It is due to CFC's.
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.
The problem of ozone layer is worsening. It is due to many ODS working together.
The main problem with ozone layer is the depletion. It is due to the reckless use of CFC's by humans.
Poking holes in ozone layer is a problem. A hole in ozone would cause the ultraviolet radiations to enter the surface.
The ozone layer is breaking. It is because of the use of CFC's by humans.
Ozone layer is decreasing. It is because of CFC's that are depleting it.
CFC's cause problems to ozone layer. They help in its depletion.
CFC's and ozone layer combined is a concern. It is the problem because CFC's destroy the ozone to a great content.
We have stopped the production of certain chemicals that damage the ozone layer.
Yes, you can. You can curb the CFC's to protect ozone.
The frog populations have gone down because of the increase in UV rays from that the thinning ozone layer can not keep out. LESS FROGS = PATCHY OZONE LAYER