1. The effects of the Earth’s Axial Tilt On life on Earth
Seasons
The effects of the Earth’s
Axial Tilt
On life on Earth

2. What “Seasons” are
The seasons we speak of here are changes in the weather involving mostly changes in temperature.
In the “Tropics,” between the Tropics of Cancer and Capricorn on Earth, the Sun is nearly always overhead these seasons do not happen
Instead they have “Wet” and “Dry” Seasons

3. The Reasons for Seasons
It is the axial tilt of the Earth that causes the seasons, not the shape of Earth’s orbit.
The Earth’s orbit is an ellipse but the differences in distance to the sun are not great enough to cause the seasons.
We have already noted that the Earth’s tilt makes the day is longer during the summer
But this too does not cause enough of a difference in total solar energy delivered to cause the seasons

4. The True cause of the Seasons is the angle with which light from the Sun strikes the ground.
In summer the sun is more nearly overhead. Its rays are spread out over a smaller area than in winter when they come in at a low angle.
Thus in summer there is more light from the sun per square foot…making the weather warmer

5. Predicting the Season
Without a calendar, How would you know when to plant crops?
Keep track of where the Sun is relative to the Zodiac you will know when the seasons are coming!
For this reason ancient people all over the world have built structures from Stonehenge to the Mayan Observatories
Those who knew how to use (usually priests) them wielded great power over the people.