To provide information on anthropogenic transformation of the biosphere circa 1800 for global land use studies and research on human-environment interactions.

To provide information on anthropogenic transformation of the biosphere circa 2000 for global land use studies and research on human-environment interactions.

To provide information on anthropogenic transformation of the biosphere circa 1900 for global land use studies and research on human-environment interactions.

To provide an easily accessible, corrected data set of polygons for hazardous waste sites in the United States which can be used to identify nearby populations and assess their potential risk.

To provide an easily accessible, corrected EPA data set of the geo-referenced locations displayed as points for all the National Priorities List (NPL) Superfund sites in the United States, Puerto Rico, and other territories.

To provide phosphorus in manure production data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

To provide phosphorus fertilizer application data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

To provide nitrogen fertilizer application data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

To provide nitrogen in manure production data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

To provide a geographically explicit and reliable database of dams for the scientific community.

To provide a geographically explicit and reliable database of reservoirs for the scientific community.

To provide data on the extent of croplands for research on human-environment interactions.

To provide data on the extent of pasturelands for research on human-environment interactions.

To provide the ATSDR polygon data set of hazardous waste sites in the United States, Puerto Rico, and other territories which can be used to identify nearby populations and assess their potential risk.

To provide information on global land use for research on human-environment interactions.

To serve a wide user community by providing composite Landsat images and raw data for urban areas that can be used in interdisciplinary studies of remote sensing and the environment.

To provide an updated map of anthropogenic impacts on the environment in geographic projection which can be used in wildlife conservation planning, natural resource management, and research on human-environment interactions.

To provide an updated map of wild areas in geographic projection which can be used in wildlife conservation planning, natural resource management, and research on human-environment interactions.

To provide an updated map of anthropogenic impacts on the environment in geographic projection which can be used in wildlife conservation planning, natural resource management, and research on human-environment interactions.