[icebraining]

Trains aren't that great either, unfortunately. Airports are a stain on a place, but railways cut huge stretches of habitats in two. Wildlife passes can help, but it's expensive to build a lot of them, and they're not a panacea. Plus, in some places you have to destroy valuable natural areas if you need to build more rail.

Still, until we have planes that pollute dramatically less (both in gases and in noise), they're the best we have.