The water hasn’t dried up, it’s a judge that ruled that the Bushmen were not entitled to access an existing water borehole on their lands or to drill a new one inside the Central Kalahari Game Reserve, one of the driest regions in the world.  While At the same time, Wilderness Safaris opened a luxury tourist lodge, complete with bar and swimming pool, on Bushman land; the government drilled new boreholes in the reserve to provide water for wildlife with funding from the Tiffany & Co Foundation; and Gem Diamonds was given environmental clearance to mine in the reserve on condition the Bushmen could not use any of its water.

Source: Outrage as Botswana Bushmen denied access to water