Hadley Cells and God’s Design

One of planet Earth’s many unique design features is the atmosphere’s circulation pattern, allowing advanced life to exist on our planet. This pattern was first noticed in 1735 when George Hadley was working with the motions of wind recorded by scientists. Realizing that wind currents were not just accidental, he originated the idea of what we call Hadley cells. We know today that the circulation of the atmosphere is much more critical and complex than anyone understood in Hadley’s day.

A feature designed into Earth’s weather pattern is how the insolation moves daily. Insolation is the amount of solar radiation that reaches the surface of a planet. Of the other planets in our solar system, only Mars has a tilt, which spreads the insolation from one latitude to the next, but Mars does not have enough atmosphere for this to be a significant factor. The other planets don’t change their tilt, so the Sun’s radiation is constantly over one latitude. The temperatures at that latitude climb very high, and everywhere else is unbelievably cold.

On Earth, the Sun’s energy gradually changes daily, moving to 20 degrees north or south latitude and striking at the Earth’s equator only two times a year. The Sun is over the equator at the equinoxes on about March 20 and September 22, and the day and night length is the same. Around June 21, the Sun is as far north as it gets, and around December 22, it reaches its southernmost point.

In the Hadley cells, air rises in tropical zones, where it drops its moisture as it cools. At 30 degrees latitude, the cooler air sinks and has very little moisture. Virtually all of Earth’s major deserts are around 30 degrees latitude north and south. In the western United States, we find the Mohave Desert, but the eastern U.S. does not have a desert even though it is at 30 degrees. Hurricanes and the Atlantic Ocean bring a large amount of water to states located at 30 degrees latitude in the eastern U.S. So many things make advanced life possible on this planet that trying to attribute all of them to chance requires far more faith than believing that God designed and created the weather on Earth so you and I can exist.

— John N. Clayton © 2025