The Middle East and North Africa, the driest population centre on the planet, is particularly vulnerable to water shortages. According to the International Water Management Institute, every country in the MENA region suffers from physical water scarcity or is approaching it. Yemen – fabled for the fertile ancient kingdoms of Arabia Felix – is expected to be the first country in the region to deplete its ground water.

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Source: http://www.guardian.co.uk/commentisfree/2008/sep/0