[The Conversation Africa] A huge underground water resource the size of Austria, the Stampriet Transboundary Aquifer System, stretches for 87,000km² across Namibia, South Africa and Botswana. It supplies 50,000 people in several towns with water pure enough to drink, and is their only source of water. But the Namibian government has awarded uranium prospecting licences to several mining companies across the aquifer system. Other mining companies already have the right to prospect for rare earth metals in the aquifer. Surina