“The seasonal “hole” in stratospheric ozone over Antarctica has filled in after reaching a record size earlier this year, according to the World Meteorological Organization. Researchers from the U.N. Agency said this year’s depletion in the ozone layer lasted longer than has been recently observed. The size of the hole peaked at 10.8 millions square miles during September, matching the record size set three years ago. Unusually cold air aloft over Antarctica during the past southern winter appears to be responsible for the return of record ozone depletion, following two years of detected improvement.”
It could be since I'm starting to study for finals that I just can't process this info as I normally would so please forgive if the question is beyond ignorant.
