Time Line End of Ice Age10 million (nomads) AD 0250 million (agriculture) 1650 (double 1)500 million (health care?) 1850 (double 2)1 billion 1940 (double.

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Presentation transcript:

Time Line End of Ice Age10 million (nomads) AD 0250 million (agriculture) 1650 (double 1)500 million (health care?) 1850 (double 2)1 billion 1940 (double 3)2 billion 1975 (double 4)4 billion Oct. 12, billion (6.7 billion 9/2008) 2025 (est.)7.8 billion 2050 (est.)9.3 billion (US = 420 million) a. 95% of the world’s population growth occurs in less developed countries b. 80% of the world’s population is less developed countries c. 177 people born per minute (10,645 per hour)

Population Cartogram

US Population Trends – 100 million – 200 million (91 years to double) – 300 million (39 years, 50% increase) – 420 million – 20% will be 65-and-over (12% in 2000) – 25% will be Hispanic Americans; non-Hispanic whites will drop to 50% 7. Since 1970, 84% of US growth has occurred in the South and West a. Dallas increased 444 people per day! b. St. George was #2 by percentage – 5%

Impacts/Effects of Population Growth 1. Environmental degradation-global warming? 2. Economic issues-jobs for all? 3. Hunger/malnutrition 4. Future growth 5. Average children per family- U.S. = 1.2; Africa = 6.1

World’s Largest Countries 1. China (1.33 B) -- 20% of world’s total pop. 2. India (1.1 B) 3. U.S.A. (303 M) 4. Indonesia (237 M) 5. Brazil (184 M) 6. Russia (140 M)(World’s largest in size)

Population Pyramids 1. A population pyramid can be used to understand reasons for population growth, 2. Such a diagram shows the age-sex structure of a country. 3. Countries with a slower growth rate will have a "straighter" population pyramid. 4. If the population pyramid has a more "pyramid like" shape, with a broader base and a narrow summit, the population of the country will continue to increase.

Population Pyramids

Demographic Transition 1. STAGE 1: both high birth and high death rates. 2. STAGE 2: high birth rates and low death rates. Very poor countries such as Africa and Asia, can be found in this category. 3. STAGE 3: high birth and death rates, but the birth rates are beginning to decrease. 4. STAGE 4: low birth and low death rates. 5. Undeveloped countries are generally found in stages two and three and the more developed nations are in stage four.

Demographic Transition

Urban vs. Rural % Urban % Urban % ??? 4. 95% of wetlands in CA are at risk due to urban growth. 5. Loss of farm land due to encroachment of cities 6. Colorado river doesn’t even make it to the sea due to irrigation, etc.

Percent Urban, 2007, 2015, and 2030

World’s Largest Cities 1. Tokyo (34.4 Mil) 2. Mexico City (18 Mil) 3. New York (17.8) 4. Sao Paolo (17 Mil) 5. Mumbai (Bombay) (16 Mil) 6. Calcutta 7. Shanghai 8. Buenos Aires 9. Delhi (18% growth!) 10. Los Angeles

Density a. Bombay- 127,000/ Sq-Mi b. Jakarta- 130,000/ Sq-Mi c. Lagos- 142,000/ Sq.Mi d. NYC- 12,000/ Sq.Mi e. LA- 9120/ Sq.Mi f. Park City- est. 850/Sq.Mi

Lagos, Nigeria

Jakarta, Indonesia

PCI (Per Capita Income) 1. Luxembourg - $78, Norway - $58, Singapore - $49, USA - $46, Ireland - $44, Canada - $36,444 (12 th ) a. Somalia - $600 b. Congo - $321 c. Afghanistan - $1,000 d. Iraq - $3,600 e. North Korea - $1,900 f. Mexico - $12,800 g. World - $10,415 h. Cuba - $4,500 i. China - $5,300

Religion Total 1. Christianity (Catholicism) (2.1 Billion) 2. Islam (1.3 B) 3. Hindu (875 Mil) 4. Chinese Folk (385 Mil) 5. Buddhism (385 Mil) 6. Non-Religious (776 Mil)

Language 1. Mandarin (1.2 Bil) 2. Hindi/Bengali (375 Mil) 3. Spanish (329 Mil) 4. English (328 Mil) 5. Arabic (221 Mil) *50 Languages alone in Europe (with over 100 dialects)