interesting, GHGs obstructing ozone layer repair

Ozone Layer Faces Bumpy Return to Health

That is the conclusion of a new study, which found that greenhouse gasses are interfering with ozone's rebound in complicated ways. The study predicts a patchy future for the ozone layer, with some sections becoming even thicker than they were before bans on ozone-damaging chemicals kicked in. Other sections, meanwhile, may remain sparse.