China's most polluting industries aren't its high tech phone and car factories, which are generally fairly modern. It's the mass of mid-level factories that produce cheap items for the entire world, but predominantly for the developing world.

The idea that Chinese pollution wouldn't exist if not for Western outsourcing is a myth.

Because of opportunities created by China.

When walmart moves into a town and kills the local shops, is it Walmarts fault for bringing cheaper prices or is the locals fault for moving all their shopping to walmart?