The Sahara: a green and pleasant land
HistoryExtra podcast
00:00
Why Is the Horo Turning Green?
Over hundreds of thousands of years, thehoro has turned green and rainfall has been a lot wetter an it than it is at the moment. There are three key reasons for these climatic fluctuations. The path of the earth around the sun is not a circle, it's elliptical. Periodically, the earth is further from the sun, and on occasion, closer. And that cycle is roughly a hundred thousand years.
Play episode from 07:11
Transcript
