[perl4ever]

I think it's obviously absurd to expect people to agree on "fairness" and tying it to doing something about global warming seems like a malicious way to prevent doing anything. You're saying that all ethical problems have to be solved before saving the current imperfect world.

If you like capitalism and fear "socialism" (which I assume anyone needling people about "fairness" this way does) then that is what allocates resources given constraints of the real world. Accepting that one of the constraints is a limitation on burning fossil fuels for the entire globe does not require changes to society beyond normal responses to price signals. Nor decisions by some authority, other than the overall cap.

Figuring out who gives up what from a central command is both impossible and unnecessary, so it shouldn't be part of the discussion. What "socialists" even advocate Soviet style central planning anymore?