Cars are cheaper than planes. Buses are cheaper than cars. Trains are cheaper than buses.
Cars use less fuel* than an aeroplane. Buses use less fuel than cars. Trains use less fuel than buses.
* Fuel used per person per km
This is true for other things too. For instance, it costs more to transport a bigger car than a smaller car. So, if you buy a small car, you not only get easier parking, you also help save the earth!
Save money! Save the Earth! Stop Global Warming!