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Analysis performed in November 2001, using the GLOBIO methodology as of November 2001, and the DCW (ESRI/NIMA) as data source, together with the GLCCv2 (USGS) landcover.
Land cover classifications has been used for the non-impacted (wilderness) areas in the map graphics.
Uploaded on Tuesday 21 Feb 2012
Human Impact - North America
Torstein Olsen and Einar Lieng, Statens Kartverk (for UNEP/GRID-Arendal)
Most areas of North America that have any economic significance - for agriculture, habitation or siliviculture has been converted and modifiedf for human use. Areas with lower degrees of disturbance and fragmentation are found in the vast Arctic areas of Canada and Alaska, as well as in the mountain ranges.