My takeaway: Satellite launches are undoing the recovery of the ozone layer that should be happening now that CFCs are banned. And this study doesn't even take into account metal deposition from reentries, which might be even worse!

When I teach climate change in my astro classes, I always give the recovery of the ozone layer as an example of how countries can work together to fix a giant problem (Montreal Protocol). I guess satellite companies are now destroying that too.