Despite being 17.8% of the world population, China is responsible alone for at least 30.1% of the global air pollution, Even if they have a high industry, you'd think that if they had health and safety regulations, which we see by the sheer amount of liveleak videos does not exist, they would have a little lower emission level? So when people sees 17.8 30.1 they know it is China and their lack of regulations.