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

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 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 preserve access to the original set of socioeconomic and natural resource scenarios used by the Millennium Ecosystem Assessment (MA) and other related research.

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.

To provide access to demographic data for the U.S.

To provide population and housing data for the U.S.

To provide street intersection data for each county in the U.S.

To provide population and housing data for the U.S.

To provide population and housing data for the U.S.

To provide demographic data for the U.S.

To provide access to demographic data for the U.S.

To provide migration data at the county and state levels for the U.S.

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 US housing and related data for demographic analysis; The samples can be extended to analysis of the whole United States for many purposes. Comparative analysis across different groups is possible using the PUMS data.