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![]() | Document Date: 2011-03-01 13:37:14Open Document File Size: 1,30 MBShare Result on FacebookCityBaltimore / /ContinentAfrica / / /EventEnvironmental Issue / /FacilityUniversity of Maryland / /IndustryTermlarge-scale transportation networks / symbolic communications / Agricultural human systems / labour-intensive and labour-substituting technologies / social systems / human systems / prior social systems / Industrial human systems / built infrastructure / social networks / stone tools / greenhouse gas / agricultural and industrial systems / greenhouse gas concentrations / economic systems / agricultural systems / fossil energy / food / energy / /NaturalFeatureSahara / /OrganizationUniversity of Maryland / Baltimore County / BY ERLE C. ELLIS* Department of Geography and Environmental Systems / /PersonC. Ellis Phil / Foley / / /Positionsimpliļ¬ed model of land-use development / engineer / general global patterns / /ProvinceOrStateMaryland / Baltimore County / /Technologygenetic engineering / labour-intensive and labour-substituting technologies / html / /URLhttp /SocialTag |