Why is the weather changeable now?

At present, it is precisely because of the remarkable period of global climate change that climate anomalies are more obvious. In geological history, the earth's climate has changed significantly many times. Such as glacial period, interglacial period, warm period and cold period. So this should be classified as a regular change in nature.

Reasons for climate anomaly: If the earth is regarded as a system, this system has evolved for a long time and formed a stable energy exchange system with the outside world, which is a balanced system. When one or more links in the energy exchange system are abnormal or even disordered, the abnormality of the whole system will also occur, and this abnormality is disordered, so it is difficult to form a new balance. There was a problem and the balance was broken, but the new balance was not formed, but was in a disorderly state, which brought a series of abnormal phenomena.