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Date: 2010-08-10 03:21:15Desertification Environmental soil science Geological history of Earth Afforestation Drylands Sustainable agriculture Michael Mortimore Keita Integrated Development Project Environment Earth Historical geology | Microsoft Word - Digital Newsletter n.º 27 English VersionAdd to Reading ListSource URL: www.desertnet-international.orgDownload Document from Source WebsiteFile Size: 663,29 KBShare Document on Facebook |