Dirt, soil, call it what you want?it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil ...

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0520272900Dirt: The Erosion of Civilizations PDF by David R. Montgomery
Read Dirt: The Erosion of Civilizations PDF from University of California Press,David R. Montgomery
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