there was a report a few weeks back that a hole ine o zone layer had actually shrunk inone particular area.
However then a few days or a week later there was a report on p[ermenantly frozen land actually thoring out....
so feck knows what to think.
I dare say the dmg is reversible....or we are atleast able to slow it down if not stop it altogether.
However i cant see this happening anytime soon as so many buisnesses and homes rely on the very stuff that causes this dmg to survive.
Untill an obtainable clean source of fuel/energy is found or made in the current amounts we use, we wont see any change imo.