Will those in the southern states cope? Could you switch?
In the house that I’m renting it would mean replacing the gas hot water system and the stove.
That’s not going to happen unless a law is passed forcing the owner to do so.
Usually these sorts of things have a carrot and stick approach.
The carrot is usually a trade-up program offering rebates on a new/replacement model.
The stick is gas prices - you just turn the dial up until its too hot to bear (pun intended).