Friendly reminder that we have already identified and largely fixed a climate change problem, the depletion of the Ozone layer, and we can fix other problems too:

The Montreal Protocol is considered the most successful international environmental agreement to date. Following the bans on ozone-depleting chemicals, the UN projects that under the current regulations the ozone layer will completely regenerate by 2045, thirty years earlier than previously predicted.

https://en.wikipedia.org/wiki/Ozone_depletion