To provide back-cast population count estimates at 30 arc-second (~1 km) resolution.

To provide back-cast population density estimates at 30 arc-second (~1 km) resolution.

To provide estimates of net-migration (in-migration minus out-migration) per one-kilometer grid cell on a decadal basis for the 1970s, 1980s, and 1990s.

To provide a global data set of point locations and attributes describing nuclear power plants and reactors.

To provide estimates of total, urban and rural populations and land areas in proximity to nuclear power plants.

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

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

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 preserve access to the original population data used by the Millennium Ecosystem Assessment (MA) and other related research.

To provide a time series of raster data on population to facilitate data integration.

To provide a time series of raster data on population projected to the year 2015 to facilitate data integration.

To provide a time series of raster data on population projected to the year 2015 to facilitate data integration.

To provide a time series of raster data on population density to facilitate data integration.

To provide a gridded data on country-level population and downscaled projections based on the SRES B2 marker scenario.

To provide data on country-level population and downscaled projections based on the SRES B2 marker scenario.

To provide data on country-level population and downscaled projections based on the SRES A1, B1, and A2 marker scenarios.

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