Many laowai thinks China is polluted. But laowai invented pollution and forced their capitalist agenda on great China. Any pollution in China is all laowai's fault--we never had any before opening and reforming brought those devils in. That's why Chairman Mao kept all laowai out of China. But China doesn't really have pollutionary problem today. We still have best tasty fish in the world. And that smell from our rivers only serves to remind us of great stinky tofu (tastes as good as it stinks).