a global pattern of air circulation known as the Hadley cell. The Hadley cell is responsible for the trade winds, tropical rainforests, and deserts throughout the world. Air rises at the equator, cools, and then moves away from the equator towards the poles. As it moves towards the poles, it sinks back down to the surface and warms up again. This sinking air creates high-pressure zones (anticyclones) at the poles which give rise to cold, dry winds that blow towards the equatorial regions. The air that rises at the equator creates low-pressure zones (cyclones) which give rise to warm, moist winds that blow towards the poles. This global air circulation pattern is responsible for the Earth's climate and weather patterns.
