🌍 Did you know that the Sahara Desert, the world's largest hot desert, was once a lush, green landscape? About 10,000 years ago, during the African Humid Period, this region was covered with lakes, rivers, and vegetation, supporting a variety of wildlife and human settlements. Climate change over millennia transformed it into the arid expanse we know today. This fascinating piece of geography reminds us of the Earth's dynamic nature and the intricate balance of ecosystems.