The Sahara's Green Past: A Look at Its Last Humid Phase
The Sahara Desert, known for its arid conditions, was once a vibrant landscape filled with lakes and wildlife. This transformation occurred roughly every 20,000 years, with the last green phase supporting diverse ecosystems.
The Sahara Desert is often perceived as a vast expanse of sand, but it has a rich history of transformation. Approximately every 20,000 years, the region undergoes a significant change, turning from a dry desert into a lush landscape.
During its most recent humid phase, large areas of North Africa were covered with grasslands, wetlands, and lakes. This environment was not only hospitable to various species but also attracted human populations seeking resources.
The last time the Sahara was green, it supported diverse wildlife, including hippos and crocodiles, which thrived in the lakes that dotted the landscape. This period allowed for the development of human settlements along the water's edge, showcasing a stark contrast to the current arid conditions.