The weather is hot and the climate is abnormal. This year is hotter than before. What caused this?

The temperature of the sun has basically not changed much, mainly because in recent decades, human beings have not paid attention to protecting the environment and discharged a lot of pollutants such as carbon dioxide, which led to the greenhouse effect caused by excessive carbon dioxide, which became more and more serious year by year. A film-like thing has also formed in the outer layer of the earth, which will slow down the outward divergence of the earth's temperature, and this is roughly the case.

Wang Cai