Now scientists have for the first time been able to carry out a continent-wide analysis of the water that is hidden under the surface in aquifers. Researchers from the British Geological Survey and University College London (UCL) have mapped in detail the amount and potential yield of this groundwater resource across the continent.
“This is an important discovery,” said UK’s secretary of state for international development, Andrew Mitchell. ”This research, which the British Government has funded, could have a profound effect on some of the world’s poorest people, helping them become less vulnerable to drought and to adapt to the impact of climate change.”
By Matt McGrath Science reporter, BBC World Service