To provide attribute and boundary data for Mexico for conducting assessments of human interactions with the environment.

To provide information on China's population and agricultural economy from the 1990 census, and geocoded 1990 China county boundary GIS data at 1:1M.

To provide time-series population data for Mexico for conducting assessments of human interactions with the environment.

To provide geographically referenced population data for Mexico for conducting assessments of human interactions with the environment.

To provide an urban place GIS coverage of Mexico.

To provide raster based GIS coverage of Mexican population for data integration.