Why is it so hot this year?

Now there are two theories. One is global warming. Because of human activities, a large area of deforestation. Leading to the global greenhouse effect. The greenhouse effect effectively prevents the earth from reflecting sunlight. It is a global high temperature. The other is solar flare activity. In recent years, global warming is due to the unprecedented activity of the sun center, which lasted for ten years. By then, marine activities will tend to be flat, and the global climate will return to that time when the four seasons are distinct.