As I left the steamy capital by plane for the south, the verdant West African rainforest below gradually gave way to a drier landscape.What South Africans call The Veldt was taking over.

• 当我离开烟雾缭绕的首都，坐飞机前往南部时，飞机下方翠绿的西非雨林渐而变成干旱的景象，这就是南美人所称的草原。