lesson 1: world population trends. lesson content distribution of world population trends over time...
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Global Demographics
Lesson 1: World Population Trends
Lesson ContentDistribution of World PopulationTrends over TimeTrends across regions and countriesPopulation Geography (location of the world’s people)
Distribution of World PopulationTwo thirds of the world’s inhabitants are clustered in
East Asia South Asia South East AsiaWestern Europe.
When Eastern North America is included, these four population concentrations account for ¾ of the world population.
Distribution and Structure:3/4 of people live on 5% of earth's surface!Total: 6.8 billion on planet as of March 5, 2010
Current World Population Counter from U.S Census Bureau As of 2009, the five most populous regions were:
Region % of World Population
Population
South-Central Asia 25.77 % 1.78 billion
Eastern Asia 22.64 % 1.56 billion
South-Eastern Asia 8.53 % 590 million
South America 5.69 % 393 million
Northern America 5.09 % 352 million
Distribution and Structure:Most Populated Countries Population
China 1.3 billion
India 1.2 billion
U.S. 310 million
Indonesia 240 million
Brazil 195 million
As of 2011, the most populated countries are:
World Population Density
Trends Over Time: World Population Growth, in BillionsNumber of years to add each billion (year)
All of Human History (1800)
130 (1930)
30 (1960)
15 (1975)
12 (1987)
12 (1999)
12 (2011)
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 and UN
A.D.2000
A.D.1000
A.D.1
1000B.C.
2000B.C.
3000B.C.
4000B.C.
5000B.C.
6000B.C.
7000B.C.
1+ million years
8
7
6
5
2
1
4
3
OldStoneAge New Stone Age
BronzeAge
IronAge
MiddleAges
ModernAge
Black Death —The Plague
9
10
11
12
A.D.3000
A.D.4000
A.D.5000
18001900
1950
1975
2000
2100
Future
Number of people in Billions
Source: Population Reference Bureau; and United Nations, World Population Projections to 2100 (1998).
Trends Over Time: World Population Growth Through History
Source: Population Reference Bureau, 2005 World Population Data Sheet.
Trends Over Time: Projected Population Change, by Country
Percent Population Change, 2005-2050
Trends Over Time: Population Shift
Trends Over Time: Population Growth Worldwide
Population Increase and Growth Rate, Five-Year Periods
80
8783
7976 76 75
72
0
10
20
30
40
50
60
70
80
90
1980-1985
1985-1990
1990-1995
1995-2000
2000-2005
2005-2010
2010-2015
2015-2020
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Net population added per year Annual population growth rate
Mill
ions
Per
cen
t in
crea
se p
er y
ear
Source: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.
Graying Planet
Greying Planet
The End
An Aging World: The United States Class Discussion: Why Does this Matter to ME? What are the implications of an aging population for:
1. The U.S. housing market?
2. Social security and pension funds?
3. Public financing of colleges and universities?
4. Global migration flows?