The Botswana government signed a new diamond sales agreement crucial to its economy with the De Beers mining company on Tuesday after seven years of negotiations. The deal gives the government an ...

Capturing water from fog - on a large scale - could provide some of the driest cities in the world with drinking water. This ...

Botswana, a sparsely populated and arid country in southern Africa, is the biggest producer of diamonds by value and the second biggest by volume behind Russia. Diamonds account for around 80% of ...