Why is smog the color of this era?

Haze is no stranger to each of us. In retrospect, the weather was much better when I was a child. Now, with the rapid development of science and technology, it has also caused harm to the environment. Smog can be seen everywhere, and it is getting worse. Nature theory is the unique color feature of this era.

I was curious about the vastness of the sky when I was a child. Looking up at the sky, I can see the blue sky and various shapes of white clouds floating. They are all beautiful. Nowadays, with the continuous improvement of our living standards, environmental pollution has become more and more serious. There is rubbish everywhere, and the smoke from the factory is like a black mushroom head.

In some places, the smog is serious, and no one can be seen between one and two meters. They are all shrouded in white smog, which brings inconvenience to our travel. There are also harmful gases in the smog, which are inhaled by us and are also harmful to our health.

It can be said that smog is harmful to us. We start with ourselves and everyone. Constant efforts will make the air better. Many hands make light work. Don't underestimate one's efforts. All efforts will pay off.