While groundwater accounts for 99 per cent of all running freshwater on Earth, it is often undervalued, mismanaged, and overexploited, according to a report published on Monday by the UN scientific organization, UNESCO.
"Groundwater is a critical natural resource, invisible but indispensable for life on our planet", UNESCO chief Audrey Azoulay said in the Foreword of Making the invisible visible, the latest edition of the UN World Water Development Report (WWDR).
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