From New Scientist.

[den]

Smog-busting paint soaks up noxious gases

This sounds like a really good idea, and I like it a lot! The down side is that there is less incentive to fix the problem at the source.

Comments

Re:

[elektron.livejournal.com]

But they don't soak up nitrogen dioxide, which is where most smog comes from. Hong Kong has millions of trees and smog problems.

Of course, everyone should just fix cars.