Diamonds account for 30% of Botswana’s entire economy. But lab-grown gems mean less demand for ones dug out of the soil. For now, Botswana is trying to get more control over the money still to be made from its precious stones.

The panic behind Botswana’s big, sparkly diamond show

Diamonds account for 30% of Botswana’s entire economy. But lab-grown gems mean less demand for ones dug out of the soil.

The Microsoft founder wields enormous influence over agriculture in Africa. He may be trying to end hunger, but critics say he is ‘playing god’ – and getting it wrong.

Bill Gates, Big Agriculture and the fight for the future of Africa’s farmland

The Microsoft founder wields enormous influence over agriculture in Africa. He may be trying to end hunger, but critics say he is ‘playing god’...