"About one third of Earth's large groundwater basins are being rapidly depleted by human consumption even though we have scarce and inaccurate data about how much water remains in them, according to two new studies published in June 2015 in Water Resources Research. This means significant segments of Earth's population are consuming groundwater without knowing when it might run out."
Israel, Jordan and the Palestinian Authority have signed a water sharing pact aimed at one day replenishing the rapidly drying Dead Sea.
The agreement will build a pipeline to carry brine from a desalination plant at the Red Sea to the Dead Sea, while providing drinking water to the region.
The Dead Sea is dropping by as much as 1m (3.3ft) a year as the River Jordan is depleted for use in irrigation.