What is the primary cause of all changes in Earth's weather?

The primary cause of all changes in Earth's weather is indeed variations of solar energy at the Earth's surface. Solar energy drives the Earth's climate system by heating the atmosphere, oceans, and land. This uneven heating occurs due to factors such as the angle of sunlight, seasonal changes, and the geographic distribution of land and water.

As solar energy is not evenly distributed, it creates temperature gradients, which lead to differences in air pressure. These differences in pressure are fundamental to weather phenomena, fueling the movement of air and the development of winds, which further influence weather patterns. Moreover, variations in solar energy contribute to processes like evaporation and condensation, which are essential in forming clouds and precipitation.

While changes in air pressure, the movement of air masses, and geological changes can all impact specific weather conditions, they are ultimately influenced by the variations in solar energy that initiate the entire weather dynamic. Understanding this foundational principle allows for a clearer grasp of weather patterns and climate behavior.