One way to reduce airline pollution is have people pay according to their personal weight and the weight of their baggage.

Fat people with lots of baggage would pay more than thin people with carry-ons.

Children would fly at a discount.

This would encourage people to "travel light", saving millions of gallons of aviation fuel and helping to clean up the planet.

Brilliant idea. Airlines should also charge more for people who are wider than the seats or make them buy two seats. Smokers should also pay more because they stink.