Take on clean air.

I ask people in China constantly how difficult it is to live in a country with this amount of pollution and their comment is inevitably that now it really isn't that bad. They claim that the had blue skies last week which sounds like the "free beer tomorrow" sign at a bar.
But the one thing you see more than anything are these gigantic power plants and you realize they can install a million solar panels or windmills but until they stop building and using these plants, it won't get any better