Why did the ghost weather suddenly cool down?

The weather suddenly turned cold for the following reasons.

1, affected by the intensity of cold air, cold air comes, and there will be cooling in many places. Generally speaking, the temperature will drop by 4 to 8 degrees with light rain. When cold air comes, the weather will be very cold, which also means that winter is coming.

2. The natural environment has been destroyed. Now the pollution situation is very serious, which has seriously threatened the living environment of many species. The environment has been destroyed to a great extent, and the probability of extreme weather has increased.