Of course we can. However, the ozone layer was much simpler: it was a onedimensiomal issue and yhe resolution was already known (replace one gas with another). Currently, we have about seven issues all at once that all need to be sorted and the solution is not that obvious or not tangable at short term. (War in russia/ukraine, unstable renewables, infrastructure, rise of new economies, cost, to name a few) We can do it, but it's infinitely more complex than the ozone layer issue back then, and even thst took years.