The answer lies in the climate of the Arctic and northern high latitudes. … However, around 5,500 years ago there was a sudden shift in climate in northern Africa leading to rapid acidification of the area. What was once a tropical, wet, and thriving environment suddenly turned into the desolate desert we see today.
Is all of Africa a desert?
Africa, the second largest continent in the world, has a variety of geographic features and vegetation zones. Many people think of Africa as consisting mostly of vast stretches of dry desert. … In fact only a small percentage of Africa, along the Guinea Coast and in the Zaire River Basin, are rainforests.
Was the Sahara a forest?
As little as 6,000 years ago, the vast Sahara Desert was covered in grassland that received plenty of rainfall, but shifts in the world’s weather patterns abruptly transformed the vegetated region into some of the driest land on Earth. …