Previous discussion https://news.ycombinator.com/item?id=17090224 https://news.ycombinator.com/item?id=17090224 This is reversing the ozone recovery progress m

Previous discussion https://news.ycombinator.com/item?id=17090224 https://news.ycombinator.com/item?id=17090224 This is reversing the ozone recovery progress made with Montreal protocol https://en.wikipedia.org/wiki/Montreal_Protocol https://en.wikipedia.org/wiki/Montreal_Protocol