That's actually achievable. It would obviously involve vast reductions in fossil fuels but would also require at least some carbon capture.

It would also be vastly expensive, but could in theory be accomplished with total global chaos... if Everyone cooperates.

I'd be curious as to what the science people would say about an "overshoot": accept the *practical* reality that we can't fix it in 30 years, but given 100 years should be able to reverse the process and get temps back down. How much damage would be undone?