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Human Population

[Click for larger image]
A Map of Earth's Human Population
The places where people live are strongly correlated to favorable climate and abundant resources, such as availability to fresh water, building materials and food. Although humans live in some of the most extreme and remote places (like deserts and tundras), most reside in concentrated urban and suburban areas. The map above shows a gridded representation of population concentration throughout the world, derived from country population estimates and censuses, as of 1995. Areas in gray have few or no residents, and darker colors of purple represent higher population counts. As can be seen, areas of eastern Asia and the Indian subcontinent, as well as selected areas of Europe and North America, are heavily populated. These areas are said to have a "high population density".
[Click for full animation]
A Map of Population throughout East and Southeast Asia
This animation shows the estimated population for eastern and southeastern Asia, the major rivers, and country boundaries. Note the dense population in Northern India and Bangladesh, just to the east of Calcutta. The Indonesian island of Java (where the capital Jakarta is found) is also heavily-populated, as is the coastal region of China, and the main island of Japan, Honshu.

First frame of an animation of Population Growth in the Washington, D.C.-Baltimore Area Using Historic Data and Urban Growth Model.
GIF Animation (673 KB; Download time w/56K modem - 1 min 54 sec)
QuickTime Movie (900 KB; Download time w/56K modem - 2 min 32 sec)
Images coutesy of Dr. Keith Clarke, Jeannette Candau, and Dylan Prentiss, Department of Geography, University of California, Santa Barbara.
This animation shows the population growth in the Washington, D.C. and Baltimore, Maryland region from 1792 to 2100. The yellow-colored areas show populated areas derived from historical data and maps, up until the 1975 frame. The purple-shaded regions are areas that are model-generated predictions of where future growth may occur. Social and urban scientists develop population-growth models to help predict both social and physical impacts of urban spread upon the landscape. City planners, government agencies, and business organizations, among other groups, are also interested in growth models for varying uses.

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