Ancient Egyptians called their land "Kemet," which meant "black ... Here, the extreme dry sands of the desert meet the fertile silt-laden soils along the Nile—a river that provides a source ...

Known as ‘desertification’, this is the result of a geographical process that causes once-fertile land to become desert ... humanity can rise to meet this challenge. The question is not ...

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Desertification is the transformation of fertile land into arid desert, caused by a combination ... humanity can rise to meet this challenge. The question is not whether we have the tools to ...