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The tool allows users to spot areas where water is used inefficiently and take action by changing the irrigation system or switching to a more water-efficient crop. A new Google-powered online tool that uses satellite data to map water consumption in Africa and the Middle East aims to help farmers produce more crops with less water, the United Nations said. WaPOR, an open-access database developed by the UN Food and Agriculture Organisation (FAO) enables countries to easily monitor how efficiently farms use water, allowing for improvements in irrigation and food production