hold on, what kind of emissions attribution is happening to make business class travel less CO2-efficient than economy class travel?? your ass weighs the same no matter which chair you sit in
to everyone who responds with "it's proportional to square footage": nobody flies planes configured for business class only. "if the moon was made of cheese we couldn't mine 3He from it" but in reality it isn't so why should I accept this assumption?
@whitequark as we all know planes burn fuel based on floor space, and not on some other unit