https://earthobservatory.nasa.gov/world-of-change/Ozone https://www.eea.europa.eu/themes/climate/ozone-depleting-substances-and-climate-change-1 https://www.epa.gov/ozone-layer-protection/current-state-ozone-layer https://www.eea.europa.eu/themes/climate/ozone-depleting-substances-and-climate-change-1 Scientists predict complete recovery by 2040-2050.