We still have a few dozen years to go, but we’ve already made a lot of headway.

Every four years, the American Meteorological Society assesses the situation, with support from the United Nations.

If the recovery continues at the same rate, then the thickness of most of this protective layer will be back at its 1980 values in 2040.

The Arctic and Antarctic will take longer, however. Over the Arctic, the ozone layer will take only five years longer to regain its former thickness, but the hole above Antarctica will take until 2066 to recover from our actions.

How did we damage the ozone layer? We used substances such as chlorofluorocarbons (CFCs) in air-conditioning units and refrigerators and also as propellant in aerosol containers, such as for hair spray and deodorant. After their use, they didn’t magically disappear and cease to exist. They rose up into the higher layers of the atmosphere.

More on this: https://www.epa.gov/ozone-layer-protection/basic-ozone-layer-science

This shows that where there is a will, there is a way.

This too is an aspect of anthropogenic (human-made) planetary change. It’s not just climate change that we’re causing.

Related is the news of the return of the ERBS:
https://edition.cnn.com/2023/01/09/world/nasa-erbs-satellite-return-scn/index.html

It was launched in the year that I started my earth science studies.