Sahara Desert formation theories

The Sahara Desert's formation is influenced by climate shifts and Earth's movements over millions of years. During wetter periods, it was a lush, savannah-like region. As Earth's tilt and orbit changed, climate patterns shifted, leading to less rainfall and transforming the area into a desert. Tectonic activity also played a role, altering wind patterns and ocean currents, further drying the land. Additionally, deforestation and human activities have contributed to desertification in recent times. Overall, the Sahara's evolution results from complex interactions between climate change, earth's orbit, tectonics, and human influence over millions of years.