What is the non-progressive argument for helping poor people survive climate change? The cheapest policy I can think of is welcoming in more climate refugees to the west. But I don’t think that would be popular on the right for other reasons.
I’d venture that there are plenty of conservative folks who want to help the poor, at least in the Christian communities. Maybe not so much in the libertarian contingent.
Help them stay where they are, absolutely. Never met a Christian conservative who was pro- expanding refugee immigration despite working for an evangelical church myself. Even destitute Christian migrants at the southern border are told to go back home. They much prefer to go to Africa to proselytize there, in my experience.
Energy from natural gas is much lower emission than coal and very cheap and easy. To fossil fuels by 2050 you'd need to be building a nuclear plant every three days to get it all done by then. That natural gas is being dismissed shows anyone looking at this seriously that net zerio will never be achieved.