[morsch]

I agree that it appears unfair that only rich people would end up getting to fly, and that's because it is unfair: we're not used to income/wealth inequality having this particular effect of drastically restricting mobility anymore (though it's only been 50 years[1]).

On the other hand we are very accustomed[2] to inequality having drastic effects in virtually all other respects, including such fundamental ones as how long you live and if you get to have your own room. For both of these, some countries have specialized solutions to absorb some of the shock (e.g. Medicaid, socialized health care, public housing, rent control). I guess it's not inconceivable to have something similar for transportation, no doubt with the same limited effect on inequality as with health care and housing.

But inevitably, global warming is going to affect the lower income groups first and foremost. If we wait, the effects of global warming will just be worse, particularly for them.

[1] https://en.wikipedia.org/wiki/Jet_set [2] bizarrely so, in my opinion