To provide country-level estimates of populations and land areas in river delta- and non-delta contexts for the years 1990, 2000, 2014, and 2015 for 246 statistical areas, focusing on greater-risk zones using the global extent of low elevation zones contiguous to the coast bounded by either 5 meters or 10 meters.

To provide urban center level estimates of the proportion of population that has convenient access to public transportation.

To provide national and subnational estimates of SDG indicator 9.1.1, which measures the proportion of the rural population who live within 2 kilometers of an all-season road.

To provide urban center level estimates of the average share of the built-up area of cities that is open space for public use for all.

To assist in the country selection process for the Millennium Challenge Corporation (MCC) by providing indicators of natural resource protection and child health that complement the governance, social, and economic indicators used by MCC as country selection criteria.

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 total area within a specific elevation strata, or the number of persons living within different climate zones.

To assess country-level vulnerability and coping capacity related to climate change based on the data set used in Chapter 8 of the Sixth Assessment Report (AR6) by the Intergovernmental Panel on Climate Change (IPCC) Working Group II (WGII).

To provide a framework of public-health-focused air quality indicators that quantifies country trends in exposure to major air pollutants.

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

To assist in the country selection process for the Millennium Challenge Corporation (MCC) by providing indicators of natural resource protection and child health that complement the governance, social, and economic indicators used by MCC as country selection criteria.

To provide a data set that allows users to understand how slow-onset climate change impacts on water availability and crop productivity, coupled with sea-level rise and storm surge, may affect the future population distribution and climate-related internal migration in low to middle income countries.

To assist in the country selection process for the Millennium Challenge Corporation (MCC) by providing indicators of natural resource protection and child health that complement the governance, social, and economic indicators used by MCC as country selection criteria.

To provide estimates of urban and rural populations and land areas for the years 1990, 2000, 2015 for 234 countries and statistical areas with contiguous coastal elevations of less than or equal to 5m above sea level, 5-10m above sea level, and national totals using multiple updated data sources for comparative analysis.

To provide a polygon representation of urban areas with city or agglomeration name and time series population estimates.

To assist in the country selection process for the Millennium Challenge Corporation (MCC) by providing indicators of natural resource protection and child health that complement the governance, social, and economic indicators used by MCC as country selection criteria.

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

To assist in the country selection process for the Millennium Challenge Corporation (MCC) by providing indicators of natural resource protection and child health that complement the governance, social, and economic indicators used by MCC as country selection criteria.

To provide spatially explicit, historic, city-level population data from 3700 BC to AD 2000 for improved understanding of contemporary and historical urbanization trends.

To provide data that can be used to calculate trace gas and aerosol emissions due to fires; monitor and assess national efforts to manage emissions.

To assist in the country selection process for the Millennium Challenge Corporation (MCC) by providing indicators of natural resource protection and child health that complement the governance, social, and economic indicators used by MCC as country selection criteria.