I mean aren’t we already doing that? Green hydrogen, carbon capture and underground storage, switching to renewables, etc.
No none of them are at scale because no one wants to pay for them.
Two problems exist:
1. Whole economies are dependent on fossil fuels.
2. The Paris Agreement was signed with the ambitious goal of 1.5C…. Well guess what… as Tip mentioned, the planet is basically telling us we’re already there.
So while today’s solutions aren’t the extremes you are thinking of, large scale climate engineering is all happening, it’s just not happening fast enough.
So I suppose in the end you Re correct, we’ll probably drop a nuke into Krakatoa.