Book excerpt: Is there enough water on this planet for a global population that will shortly double its present size? The answer is of huge importance for people everywhere, but particularly to the peoples and political leaders of the Middle East and North Africa. As well as explaining the particular issues of conflict in the region, Allan argues that the answer to these problems lies at the global rather than local level. The Middle East Water Question is a major book by one of the world's leading authorities on water issues.