1. Population Distribution

2. Population Changes

3. World Population Growth Through History
Billions 12 11
2100 10 9
Modern
Age 8
Old
Stone
Bronze
Iron
Middle 7
Age
New Stone Age
Age
Age
Ages 6
2000
Future 5 4
1975 3
1950 2
1900 1
Black Death —
The Plague
1800
1+ million
7000
6000
5000
4000
3000
2000
1000
A.D.
A.D.
A.D.
A.D.
A.D.
A.D.
years
B.C.
B.C.
B.C.
B.C.
B.C.
B.C.
B.C. 1
1000
2000
3000
4000
5000
Source: Population Reference Bureau; and United Nations, World Population Projections to 2100 (1998).

4. World Population Growth, in Billions
Number of years to add each billion (year)
All of Human History
(1800)
130 (1930)
30 (1960)
15 (1975)
12 (1987)
12 (1999)
14 (2013)
14 (2027)
21 (2048)
Sources: First and second billion: Population Reference Bureau. Third through ninth billion: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.

6. Annual Increase in World Population
Millions
Source: United Nations, World Population Prospects: The 2004 Revision, 2005.

7. World Population Distribution

9. Trends in Population Growth Worldwide
Population Increase and Growth Rate, Five-Year Periods
Percent increase per year
Millions
This figure illustrates the lag between changes in the rate of growth and the net increase in population per year.
Over the period , the population growth rate declined (a reflection of declining fertility), yet millions of people were added to the world’s population (which peaked around 1985, when 87 million people were added each year).
From 2000 on, the growth rate will continue to decline. Between 2015 and 2020, we will still be adding 72 million people each year. Why? Because the generation of women now having their children is very large as the result of high fertility in their mothers’ and grandmothers’ generations.
Source: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.

10. World Population Clock
2005
Natural Increase per
World
More Developed Countries
Less Developed Countries
Less Developed Countries (less China)
Year
80,794,218
1,234,907
79,559,311
71,906,587
Day
221,354
3,383
217,971
197,004
Minute
154 2
151
137
Source: Population Reference Bureau, 2005 World Population Data Sheet.

11. Projected Population Change, by Country
Percent Population Change,
Source: Population Reference Bureau, 2005 World Population Data Sheet.

12. Population Distribution
Where are the world’s population clusters?

13. Distribution of World Population
Population concentrations
The four largest population clusters
East Asia, South Asia, Southeast Asia, Western Europe
Other population clusters
Sparsely populated regions
Dry lands – Cold lands
Wet lands – High lands
Population density
Arithmetic density
Physiological density
Agricultural density

14. Population concentrations
The four largest population clusters
East Asia, South Asia, Southeast Asia, Western Europe
Other population clusters

15. Population Cartogram

17. World Population Distribution & Climate Zones
Fig. 2-2: World population is unevenly distributed across the earth’s surface. Climate is one factor that affects population density.

18. World Population Density

19. Climate Zones (simplified)

20. Is this a Population Distribution Map?

22. Ecumene
The inhabited areas of the world, as opposed to the non-ecumene which is sparsely or not at all inhabited.
The ecumene of a nation is its more densely inhabited core.
These very simplified classifications pose difficulties of delimitation.

23. Expansion of the Ecumene 5000 BC - 1900 AD
Fig. 2-3: The ecumene, or the portion of the earth with permanent human settlement, has expanded to cover most of the world’s land area.

24. Ecumene, 5000 B.C.

25. Ecumene, A.D. 1

26. Ecumene, A.D.1500

27. Ecumene, A.D.1900

29. D

30. China Population Distribution
Yangtze and Yellow River Valleys
Sichuan Basin
Coastal Plains
China Proper

33. South Asia Population Distribution
Ganges , Indus and Brahmaputra
River Valleys
G & B
Delta
Coastal Plains

34. Peninsular Southeast Asia
Hanoi / Red River Valley
Coastal Plains
Bangkok /
Chao Phraya river
Saigon /
Mekong Delta

35. Insular Southeast Asia
Manila /
Luzon Island
Java Island

36. E D

37. Industrial
Core

38. US Population Distribution

39. Latin America Population Density

40. World Population

43. Nigeria

46. Global Population Distribution

49. Population Density
Population density is the measure of the number per unit area.
It is commonly represented as people per square mile (or square kilometer), which is derived simply by dividing...
Total area population / land area in square miles (or square kilometers)

50. Population Densities North America - 32 people per square mile
South America - 73 people per square mile
Europe people per square mile
Asia people per square mile
Africa - 65 people per square mile
Australia people per square mile

51. Arithmetic density: The total number of peoples / area of land measured in km² or mi².
Physiological density: The total population / the amount of arable land.
Agricultural density: The total rural population / amount of gricultural land.

52. Arithmetic Population Density
Fig. 2-4: Arithmetic population density is the number of people per total land area. The highest densities are found in parts of Asia and Europe.

53. Physiological Density
Fig. 2-5: Physiological density is the number of people per arable land area. This is a good measure of the relation between population and agricultural resources in a society.

54. Measures of Population Density

62. Urban density : The number of peoples inhabiting an urban area / the total area of urban land.
Ecological optimum: The density of population which can be supported by the area's natural resources.