population notes

Population notes

World Population Milestones

•1 billion in 1804

•2 billion in 1927    (123 years later)

•3 billion in 1960    ( 33 years later)

•4 billion in 1974    ( 14 years later)

•5 billion in 1987    ( 13 years later)

•6 billion in 1999    ( 12 years later)

Countries Ranked by Population: 2006 -------------------------------------------------------- Rank Country Population -------------------------------------------------------- 1 China 1.3 billion2 India 1.1 billion 3 United States 300 million4. Indonesia 231million 5 Brazil 188 million6 Pakistan 165 million 7 Bangladesh 147 million 8 Russia 142 million9 Nigeria 132 million 10 Japan 127 million

Countries Ranked by Population: 2050 -------------------------------------------------------- Rank Country Population ------------------- 1 India 1.8 billion 2 China 1.4 billion 3 United States 420 million 4 Nigeria 356 million 5 Indonesia 313 million 6 Pakistan 294 million 7 Bangladesh 279 million 8 Brazil 228 million 9 Congo (Kinshasa)183 million 10 Mexico 147 million

Population Patterns

1. Population distribution – An area’s physical environment, especially climate, limits the number of people who can live there. There are 4 centers of heavy population in the world:

A. Eastern Asia

Eastern Asia has the greatest concentration of people on earth – it is centered in China – 21% of the Earth’s

population

B. South Asia

South Asia is the second largest concentration of people—it is centered in India – 16% of the

world’s population.

C. Western Europe

Europe is the third largest concentration. Western Europe- people are concentrated near natural resources needed for industry.

D. Eastern U.S.

D. East US. In the US, the chain of cities start from the city of Boston to south of

Washington D.C. This is called a megalopolis.

Population Density – tells you how concentrated the numbers of people are in an area. It makes it possible to compare areas of different size and population in an area.

Rank Urbanized Area Population

Square Miles

Population per

Square Mile

Population per

Square Kilometer

Decade of Estimate

Source for Urbanized Area

Largest

1 Tokyo31,797,00

0 1,728 18,401 7,099 1986-1995 Kenworthy-Laube

2 Mexico City17,250,00

0 570 30,263 11,676 1996-2005 Demographia, 2001

3 Sao Paulo16,800,00

0 950 17,684 6,823 1996-2005 Demographia, 1998

4 Seoul16,732,00

0 270 61,970 23,908 1986-1995 Kenworthy-Laube

5 New York16,044,00

0 2,967 5,407 2,086 1986-1995 US Census

6 Mumbai15,700,00

0 200 78,500 30,285 1996-2005 Demographia, 1998

7 Osaka-Kobe-Kyoto12,300,00

0 700 17,571 6,779 1996-2005 Demographia, 1998

8 London12,264,00

0 2,932 4,183 1,614 1996-2005 Demographia, 1998

9 Calcutta12,100,00

0 400 30,250 11,671 1996-2005 Demographia

10 Los Angeles11,402,00

0 1,966 5,800 2,237 1986-1995 US Census

11 Buenos Aires11,100,00

0 970 11,443 4,415 1996-2005 Demographia, 1998

12 Delhi10,300,00

0 225 45,778 17,661 1996-2005 Demographia. 1998

13 Rio de Janiero10,300,00

0 900 11,444 4,415 1996-2005 Demographia, 1998

14 Karachi10,100,00

0 360 28,056 10,824 1996-2005 Demographia, 1996

Population Issues

1.   1.  Food Supply

a.      13-18 million people die each year because they do not have a

good diet (35,000 a day, 24 a minute)

Drying rice in Thailand

B. The population explosion has raised such issues as how to increase food supplies.

C. How to make better use of

farmland.

  D.   How to find new sources of food.

     1.Today 90% of the world’s food comes from 15 crops and 7 livestock animals

     2. There are more than 10 million kinds of plants and animals on Earth.

E. Natural Resource Issues

1.  Certain resources are in limited supply, such as fossil fuels

2. Fresh water is one basic resource that is being threatened.

A.    Migration

1. People move because of either economic or political reasons (push- pull forces)

2.   Worldwide, more people are moving from the countryside to urban areas – and from developing to industrialized

countries. This places huge demands on the country or cities economy.

 Economic Geography

AA. Various levels of economic activities.

1. Primary economic activities make direct use of natural resources.

a. Agriculture

b. Forestry

c. Mining

2.     Secondary economic activities convert raw materials into new products.

a.      Food processing

b.     Manufacturing

c.     Refining

3. Tertiary economic activities refer to service industries

VIII. Wealth and Poverty

“THE LINE”

“THE LINE”

MDCs

LDCs

“THE LINE”Less Developed Countries (Below the Line)

*Many poor people

*Mostly Subsistence Agriculture

*Widespread Illiteracy

*Unstable Governments

*Low Gross National Products (GNP)

*Population pyramid triangle-shaped

*Economies based on Primary and secondary economic activites

“THE LINE”More Developed Countries (Above the Line)

•High Standard of Living

•Abundant Food

Good Educational Opportunities

•Good Health Care

•Economies based on secondary and tertiary activities.

•Population pyramid shaped like coke bottle or top-heavy