From The Telegraph:
Vast oceans may lay beneath the Earth's surface, new research suggests.
Scientists believe areas of enhanced electrical conductivity in the mantle - the thick region between the Earth's crust and its core - betray the presence of water.
Water divining researchers produced a global three-dimensional map of the mantle showing the areas through which electricity flowed most freely.
Conductivity hot spots were found to coincide with subduction zones, sites where the tectonic plates that divide up the Earth's surface are being forced downwards.
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