Webber suggests that airlines set a standard passenger weight, say, 75 kilos. If a passenger weighs 100 kilos, a surcharge would be charged to cover the extra fuel costs. For a passenger who is 25 kilos overweight, the surcharge on a Sydney-London return ticket would be $29. A passenger weighing just 50 kilos would get a discount of the same amount.Weigh More, Pay More - Peter Singer - Project Syndicate
