Check out the map showing worldwide surface water and ground water withdrawal as percentage of total renewable water resources. Water withdrawal...

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Check out the map showing worldwide surface water and ground water withdrawal as percentage of total renewable water resources. Water withdrawal is the quantity of water removed from available sources for human use , expressed as a percentage of the total volume of water available annually through the hydrological cycle . This parameter is an indication of the pressure on the renewable water resources. http://bit.ly/OnaSTh