Earth’s axis of rotation is tilted, as you can see from this illustration ... It is the angle of the Earth's tilt that causes the seasons: spring, summer, autumn and winter.

And are distinct, new "seasons" starting to appear too ... how a different understanding of when summer starts, for example, could shape the tourism industry. It takes a specific focus on a ...

That’s because the astronomical definition of the seasons is based on the tilt of the Earth and not the annual ... big ...