What movement of the earth causes the seasons?
Lastly, the Earth’s orbit around the sun is elliptical in shape. As a result, the Earth is closest to the sun in January and farthest from the sun in July. At first glance, this doesn’t make sense. If it’s closer in January than in July, then shouldn’t it be warmer in January than it is in July? As it turns out, this difference in distance contributes very little to the seasonal temperature variations. The variations are mainly caused by the sunlight’s angle of incidence and the number of daylight hours. All of these factors vary according to the Earth’s revolution around the sun.
