Since the war in Ukraine happened a year ago, and isn't over yet, the rest cannot be history. The problems with green houses gas emissions and enegry are souch older so, with the first measures being taken 20 odd years ago (too little, but better than nothing).
As always, people cry over spilled milk, what happened happened. Now we have a ton of options to deploy, nuclear power is not a feasible one (cost, time...). Organizations active in nuclear power agree, new projects aren't launched anymore. And the last one to be launched are delayed, and come in above cost, when planned cost already wasn't competitive.
Funny so, it took quite a while to reach the point of "Germany bad because gas financed Putin, nuclear power would have prevented that".