"You never miss the water till the well runs dry" is an old idiom that is becoming a harsh reality for the Middle East and North Africa region and globally. Water scarcity is now this century's imminent greatest problem, a clear and present danger. This is no surprise considering 85 percent of the world’s population lives in the driest half of the planet. The United Nations estimates that, already, 6 to 8 million people die annually from the consequences of disasters and water-related diseases, with a child dying from a water-related illness every 21 seconds. In developing countries, unsafe water causes 80 percent of all illness and disease, and kills more people every year than all forms of violence, including war. The situation is set to worsen. Water availability is expected to decrease in most regions, while future global agricultural water consumption is estimated to increase by 19 percent by 2050.