In human demography and population studies, “population (human)” refers to the total set of individuals of Homo sapiens occupying a defined spatial, temporal, or social frame, serving as the primary unit of analysis for topics such as fertility, mortality, migration, and population structure. Research addresses population size, age–sex composition, density, spatial distribution, and dynamic processes governed by demographic rates and transitions. Human populations are modeled using formal demographic methods (e.g., life tables, stable and multistate population models) and are central to analyses of population growth, demographic transitions, population health, urbanization, and the interaction between human numbers and economic, environmental, and social systems.
A new research study from The University of Alabama in Huntsville addresses the question of how much urban areas have warmed from the Urban Heat Island (UHI) effect.
Environment
May 5, 2025
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People in informal settlements, urban deprived areas, refugee camps, prisons, and war zones can be particularly vulnerable to climate threats and natural hazards. A new study, led by IIASA researchers, explores how policymakers ...
Environment
Mar 17, 2025
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