What is the biggest reason for the foggy weather in Shanghai?

Shanghai is by the sea. The air quality has always been excellent before, and I never knew what smog was. But in recent years, with the rapid introduction of foreign population and blind construction, as well as the massive promotion of the automobile industry, the air quality has obviously declined, and I don't think it will improve in the next decade-is it possible for the air in Shanghai to be good? You don't have to think about it!

Shanghai is a small place. It is only a small spot on the map, but it has gathered more than 30 million people, more than the national population of Australia10 million. People with normal brains know very well that daydreaming is the city with good air.

The whole eastern region has introduced too many people. In order to meet the needs of this group of people, we need to build houses, start businesses, generate electricity, make goods, have more cars, have more air conditioners, cook and emit emissions. . . . . . The meteorological observatory and the media said that the smog was caused by the climate, and the smog was brought by the cold air from the north to the south. It's really a joke to lift the smog and wait for the cold air to go south! There are various reasons to explain the source of smog, but they are all pale and powerless. If you don't try to control the population, everything is nonsense! If we continue to put GDP first and leave ecological civilization behind, Shanghai will continue to build on a large scale, endlessly introduce population, or sell 654.38+10,000 private car licenses every year. . . . . . At this rate, 10 will not get better in 20 years.

After all, the root cause of smog is people's self-emission, and the main reason is that there are many people! When this problem is solved, 99% of the environmental problems will be solved.