Scientists from the United Kingdom on Friday published a study in the journal Environmental Research Letters showing vast groundwater reserves in some of Africa's most arid regions. That water, according to researchers from the British Geological Survey and University College London, could be used to dampen the effects of global warming and aid some of the continent's 300 million people who lack access to clean drinking water. The reserves are 100 times larger than the continent's available surface water, although the news has raised concerns over accessibility and the long-term consequences of a water boom. "The discovery of substantial water reserves under parts of Africa may well be good news for the continent," said United Nations spokesman Nick Nuttall, "but ... if not sustainably managed, could have unforeseen impacts."
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