Water is the mother of life, water can not ah! The global risk report of the 2015 World Economic Forum has identified water as one of the future global crises. strange! ?? Clearly there is not much water around the world, why water? Although 97.5% of the world's water, but the cost of dealing with sea water is too expensive, do not meet cost considerations. One of the farthest distances in the world is the clear water in front, but not directly drink! T3T