It isn't that simple. Some geographies have intrinsically higher carbon footprints than others, all other things being equal and with similar levels of effort a

It isn't that simple. Some geographies have intrinsically higher carbon footprints than others, all other things being equal and with similar levels of effort and investment. The cost of reducing carbon footprint is not remotely uniform, through no fault of the people that live there. Differentially taxing people by virtue of where they live for no local purpose is reliably unpopular in similar contexts, and that would easily be the case here.