To provide a continuous surface of concentrations (micrograms per cubic meter) of particulate matter of 2.5 micrometers or smaller (PM2.5) for health and environmental research.

To provide an open access, well documented global data set of roads between settlements using a consistent data model (UNSDI-T v.2) which is, to the extent possible, topologically integrated.

To provide quantitative metrics for evaluating a country's environmental performance in different policy categories relative to clearly defined targets.

To provide quantitative metrics for evaluating a country's environmental performance in different policy categories relative to clearly defined targets.

To provide tabular data on the trends of chlorophyll-a concentration on a pixel by pixel basis for identifying areas with improving, declining, and stable coastal water quality that can provide guidance for decision making in the context of coastal management.

To provide a gridded version of existing SeaWiFS data in GIS-compatible formats in order to determine concentrations of chlorophyll-a in the coastal water column and to facilitate the integration with other data.

To provide data that can assist in the extraction and analysis of chlorophyll-a concentration and trends from global grids.

To provide an assessment of potential climate change impacts on world crop production.

To provide quantitative metrics for evaluating a country's environmental performance in different policy categories relative to clearly defined targets.

To provide an easily accessible, corrected EPA data set of the geo-referenced locations for all the National Priorities List sites in the United States and Puerto Rico.

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 make the acquisition, comparison and analysis of sustainability indicators easier by compiling them in a single database, incorporating multiple country codes, and condensing the indicator descriptions into short methodological summaries in an accompanying data dictionary.

To provide high spatial resolution subnational estimates of unsatisfied basic needs for use by a wide community for interdisciplinary studies of poverty, inequality and the environment.

To provide high spatial resolution subnational estimates of poverty and inequality for use by a wide user community for interdisciplinary studies of poverty, inequality and the environment.

To provide high spatial resolution subnational estimates of poverty and food security for use by a wide community for interdisciplinary studies of poverty, food security and the environment.

To provide a global subnational map of the prevalence of underweight children that can be used by a wide user community in interdisciplinary studies of health, poverty and the environment.

To provide a global subnational map of infant mortality rate estimates that can be used by a wide user community in interdisciplinary studies of health, poverty and the environment.

To create a comparative index of national-level environmental sustainability and to provide a mechanism for making environmental management more quantitative, empirically grounded and systematic.

To provide gridded demographic data, including characteristics of income, poverty, education, and housing age, for New Orleans.

To provide a comparative index of national-level environmental sustainability covering a number of sustainability dimensions.