Seven videos exploring the human and physical geography of the continent of Africa.

If you think about Africa ... two other important zones – the Tropic of Cancer, and the Tropic of Capricorn. They’re not just lines that have been drawn on the map, though!

Throughout the Sahel, the region that stretches across Africa below the Sahara Desert, climate change is raising ... in this area are included in a red zone; many displaced residents have decided ...