When Wangari Maathai, a Kenyan known for her work in human rights and environmental conservation, including efforts to fight deforestation, won the Nobel Peace Prize last month, many took note that the Nobel Committee had evidently expanded its notion of "peace." More probably, the committee intended to highlight scarcity of renewable natural resources as an important cause of war - an idea that was widely endorsed in news coverage of the award. Speculation about "water wars" and other apocalyptic scenarios lacks solid foundation. In any case, this link is trumped by poverty, political instability and a region's history of conflict. Researchers haven't closed the book on the question, but the most dramatic scenarios can be dismissed.
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