Explainer: what there is to know about South Africa's aquifers: Groundwater is used extensively in arid regions like South Africa's Karoo. ShutterstockMany South African cities use ground water and aquifers as their main source of water. And with water scarcity an increasing threat, these sources are becoming more and more important. The Conversation Africa’s Nontobeko … [Read more...] about Explainer: what there is to know about South Africa’s aquifers | The Conversation