A third of world's aquifers are being sucked dry - NASA data
Some water basins are not being replenished at all, with potentially risky consequences for farmers and others
Cost of violence hits $14 trillion in increasingly divided world
Syria ranked the least peaceful country, Libya saw the most severe deterioration, and Iceland remained the most peaceful
Helicopters deliver aid to thousands fleeing S. Sudan violence
Survival kits have been delivered to some 30,000 people in Unity State in the north
FEATURE-Is it a building? Is it a rock? Using technology to chart the 'unmapped world'
Missing Maps Project gets volunteers to mark satellite photographs of undermapped places which can be used by aid agencies
UN chief opens Yemen talks, Saudi-led planes bomb capital
Disease spread as humanitarian crisis worsens and there is little sign of compromise between Houthis and Hadi govt
As Bashir leaves, South African court calls for his arrest
A court in Pretoria ruled that S.Africa should arrest Bashir who is wanted by the International Criminal Court over war crimes and crimes against humanity