Airlines are not shy of high prices when they can get away with it;just flew with BMI London to Moscow one way ticket £432 (this is a cheap price on this route) & they had the cheek to charge me for my drink.I would support higher prices by taxing aviation fuel (the greens would like this too,not that I am one) However this solution would require worldwide action,so that all aviation is paying the same tax,not so impossible considering governments love a new tax if their people let them get away with it,which in this case they would due to the global warming hysteria.