Natural World - Vanishing Earth - Water

Seizoen: 0 - Aflevering: 3 / 4 - Eerst uitgezonden: 05 augustus 1986 - Episode ID: 469141

Burkino Faso, the edge of the Sahel in west Africa, is one of the poorest countries in the world. It has been gripped by drought since 1968, yet simple techniques are helping to conserve their rainfall. In the western USA, massive and expensive irrigation schemes are bringing a harvest of subsidised yet unsaleable crops.