One of the longest-lived ozone holes on record is about to close

This year has been characterised by cold and strong polar vortices, resulting in strong ozone depletion and a reminder of how much the ozone hole can vary annually as it heals

One of the longest-lived ozone holes on record is about to close
This year has been characterised by cold and strong polar vortices, resulting in strong ozone depletion and a reminder of how much the ozone hole can vary annually as it heals