Dave Montgomery on Soil Degradation and the Erosion of Civilizations: Revision history

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5 January 2015

  • curprev 08:0708:07, 5 January 2015‎ Mbauwens talk contribs‎ 862 bytes +862‎ Created page with " Video via https://www.youtube.com/watch?v=sQACN-XiqHU =Description= "Webcast sponsored by the Irving K. Barber Learning Centre. Author David Montgomery has discovered that ..."
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