That is a great idea. One thing to remember is China is where we were in the late 80's or early 90's in their manufacturing phase. I mean that the way technology has changed is one thing but they actually have carbon and soot like we used to, which was one of the things that washed out of the sky when it rained. We now have all kinds of polutions thanks to modern marvels like catalytic converters and fuel attitives and and everything wonderful that pollutes the water and ground. But one thing about it thought, the earth is resilient and goes back to what it was before man's pollution. Another thing to remember, mother nature does a little polluting herself with fires and volcano activities. You wonder how to fix the problem with so many people riding in cars and on motorcycles at all times of the day and night and all sorts of commercial enterprises going that it never takes a break and lets mother nature catch up with the constant pollution. This is just a thought of mine that i wanted to throw out there.