Planned volcano eruptions. Instead of them randomly erupting and taking us by surprise(with maybe a week’s warning), you periodically trigger them with bombs. You can plan the evacuations years in advance. The subsequent eruptions will be much weaker and more manageable since there won’t be enough pressure built up before the next eruption. The downsides and hiccups I can think of is the likely extinction of some species caused by the vast amount of ash and greenhouse gases ejected into the atmosphere. Also insurance companies probably won’t cover damage caused by the government.
Good luck with Yellow Stone.
Because it’s pretty much GGPO, if you mess up/it goes off full tilt on its own.
Memes.