Technologically practical? Certainly. Kick renewables and electrification into high gear. Treat it like the emergency that it is.

Politically practical? Not a chance. It was already a major struggle a decade ago when the political climate was much more favorable to addressing the problem. Now, even the countries that want to do something about it are going to be more concerned about more immediate threats like being invaded.

Our best hope is that green technology quickly gets to the point where it so heavily outcompetes CO2-emitting technology that the latter disappears on its own. But this will take longer than it should.