Water is where all life begins: We rely on it to grow our food, produce our goods and generate our energy. There is no substitute for water— every living thing depends on it.
And yet lack of water has become one of the world’s most pressing challenges. Only 3% of the earth’s water is fresh water; about two-thirds of it is frozen in glaciers and polar ice caps and we have long over-stretched this precious resource. Population growth, industrial and agricultural development, pollution, wetland drainage, river channelization and deforestation causing sedimentation have all put a massive strain on the world’s freshwater systems.