To provide estimates of urban and rural populations and land areas for the years 1990, 2000, and 2010; and projections to the year 2100 for 202 countries with contiguous coastal elevations in the following categories: less than or equal to 1m, 3m, 5m, 7m, 9m, 10m, 12m, or 20m; as well as national totals.

To provide tabular data to researchers without GIS capabilities who need data on population and land area by country across a range of physical characteristics. These include measures such as the number of persons living within coastal zones, the percent of a region within specific elevation strata, or the number of persons living within different climate zones.

To provide annual estimates of anthropogenic global and regional Sulfur Dioxide (SO2) emissions in support of climate, atmospheric or other related research.

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

To provide a time series of raster population data for ntegration with other data sets.

To provide a raster representation of urban areas (or urban mask) for use with GRUMP population grids or other data sets.

To provide land area data for use with GRUMPv1 population and urban data as well as a quantitative measure of resolution of the input spatial units for GRUMPv1.

To provide a time series of raster population density data for data integration.

To provide populated place (point) data with consistent population estimates.

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 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 tabular data on environmental conditions (elevations, climate, coastal) in which people reside.

To provide estimates of urban and rural populations and land areas in the low elevation coastal zone.

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 geographical portraits of vulnerability designed to incorporate both exposure to climate change and national capacities to adapt.

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

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.