[scottyah]

All that stuff is still being made and polluting, "mordor" is just further away.

[vineyardmike]

Then its not really "nearby" is it? Its another city, another nation, and not really related to that city at all?

[Arrath]

Then you're simply being pedantic, and illustrating the inherent danger of free-for-all negative externalities. If the polluting was done far enough away, it doesn't matter?

[mazamats]

Isn't that the whole point? To keep it away from urban populations?