A special report from Africa on: Hunger -Natural Solutions? with Tony Soper and Brian Leith
Millions of Africans cannot buy food, they must grow it. For many the years of drought have made this impossible. No amount of water will make crops grow on soil that is exhausted. Why is so much land turning into desert? How can the expanding population grow more food without destroying the soil? Research CAREY NEWSON Director RON MARTIN
Producer ROBIN HELLIER Editor ANDREW NEAL BBC Bristol