What is the reason for the smog weather in Beijing in recent years?

The main cause of smog is environmental pollution. Including industrial pollution, incineration pollution, automobile exhaust and so on. First of all, we should plant more green vegetation. For the treatment of straw, we can use straw binding net to bundle straw. Bundled straw can be used to generate electricity or crushed to make feed. Try to use public facilities when going out. I hope it helps you. Xinhui wishes you a happy life.