I never in thousands of posts on here called anyone a liar, but I am pretty sure you are a liar. You say you have been the China many times, and mention going to Hong Kong.
I have been to Shanghai, Hong Kong, Guangzhou, and Nanchang. I have spent a few days in Hong Kong, and a few days in Shanghai. I have cumulatively spent a few weeks in Guangzhou and Nanchang. You are right that Hong Kong is a beautiful city. From Kowloon, It has one of the most striking skylines on earth. However, thanks to all of the industry along the Pearl River Delta, air pollution in Hong Kong far exceeds any U.S. city.
Air pollution in Hong Kong - Wikipedia, the free encyclopedia
There are days in Hong Kong when the air is so foul that many people walk around wearing face masks to help filter out the particulates in the air. One day I ran up the mountains above central Hong Kong, the smog was so thick that day that from the top of Victoria Peak, you could only see the tallest buildings, and Kowloon across the harbor was not even visible.
Shanghai is literally one of the most polluted cities on the face of the earth. No U.S. city even remotely compares with it.
Study in Shanghai, China - Study In China
There are days in Shanghai when the pollution is so thick that you can hardly see Pudong from the Bund.
In 2006 I spent a week in Nanchang, China and despite there being clear skies, never one time saw the sun. I spent a week there again in 2009. Because of recent rains washing particulates from the air, there were days when you could see the sky, but only by looking directly overhead, a brown haze still engulfed the city.
I have spent time in Guangzhou as well. Same story, the only time you could see a blue sky was after it rained and the particulates were washed from the air. One day while there I hiked to the top of White Cloud Mountain and could only see a few miles because of the smog, and that was one of the clearest days I was there.
Even flying over China you notice the pollution, most of the time you cannot see the ground from the air, even over rural areas a persistent smoggy haze obscures the ground from the air. The Chinese people live in an environment that is incomprehensible to westerners that have never visited the country. They never see the kind of blue skies we enjoy here. They don't have the unspoiled wilderness we still have in places here. Unpolluted water is practically nonexistent there. Much of the country is an environmental wasteland, more spoiled and polluted than anywhere in the United States. Which is why I am pretty sure you have never traveled there, because the pollution there is not just something I noticed, its something that every westerner talks about that has visited the country. The common theme one hears again and again is that "its a great country to visit with all of the culture and history, but the pollution was absolutely horrible".
If you want to hold up unregulated China as an environmental model for the United States, then you are a liar and a fool.