1. © 2006 Population Reference Bureau World Population Growth World population has been growing at a rapid pace during the last 200 years. 30,000 years ago there was 1 person for every 200 square miles of the earth's surface. If current rates of population growth continue, in 1,000 years there will be 100 people for each square yard

2. © 2006 Population Reference Bureau A.D. 2000 A.D. 1000 A.D. 1 1000 B.C. 2000 B.C. 3000 B.C. 4000 B.C. 5000 B.C. 6000 B.C. 7000 B.C. 1+ million years 8 7 6 5 2 1 4 3 Old Stone Age New Stone Age Bronze Age Iron Age Middle Ages Modern Age Black Death—The Plague 9 10 11 12 A.D. 3000 A.D. 4000 A.D. 5000 1800 1900 1950 1975 2000 2100 Future Billions Source: Population Reference Bureau; and United Nations, World Population Projections to 2100 (1998). World Population Growth Through History

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4. © 2006 Population Reference Bureau Factors that Determine World Population Growth Factors that determine population growth –1) The birth rate –2) The death rate What explains the rapid population growth of the last 200 years? –Exponential growth (similar to compound interest)

5. © 2006 Population Reference Bureau In 1850, the human population reached its first billion. By 1930, it was 2 billion. By 1960, the human population reached 3 billion. Then in 1975, 4 billion, and so on…

6. © 2006 Population Reference Bureau World Population Clock Natural Increase perWorld More Developed Countries Less Developed Countries Less Developed Countries (less China) Year80,794,2181,234,90779,559,31171,906,587 Day221,3543,383217,971197,004 Minute1542151137 2005 Source: Population Reference Bureau, 2005 World Population Data Sheet.

7. © 2006 Population Reference Bureau Billions Less Developed Regions More Developed Regions Source: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005. World Population Growth – Less Developed Compared to More Developed Countries

8. © 2006 Population Reference Bureau Source: Population Reference Bureau, 2005 World Population Data Sheet. Projected Population Change, by Country Percent Population Change, 2005-2050

9. © 2006 Population Reference Bureau Thomas Malthus 1766-1834 David Lam, How the world survived the population bomb, University of Michigan Population Studies Center, 2011

10. © Student Handouts, Inc.

11. © 2006 Population Reference Bureau Malthus’ Expectations & Reality Failed to see impact of Industrial Revolution on Food production

12. © 2006 Population Reference Bureau More Crowding to Come: US Population Growth 1960-2050 Source: Bureau of the Census, CensusScope

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14. U.S. Population in Urban, Suburban, & Rural Areas People (millions) 1950-1999 Millions

15. © 2006 Population Reference Bureau 1960 World population reached 3 billion Time Magazine January 1960 David Lam, How the world survived the population bomb, University of Michigan Population Studies Center, 2011

16. © 2006 Population Reference Bureau We will add nearly 6 million people by 2030, an increase of 36 percent from 2000 the equivalent of two cities the size of Chicago

17. © 2006 Population Reference Bureau Population Growth Southern California, 1980-2020 THE CHANGING CLIENTELE FOR PLANNING Dowell Myers USC School of Policy, Planning, and Development

18. © 2006 Population Reference Bureau THE CHANGING CLIENTELE FOR PLANNING Dowell Myers USC School of Policy, Planning, and Development SOUTHERN CALIFORNIA FUTURE = A GROWING LATINO POPULATION SOUTHERN CALIFORNIA FUTURE = A GROWING LATINO POPULATION

19. © 2006 Population Reference Bureau Where Americans Would Like To Live Fannie Mae, 1998

20. © 2006 Population Reference Bureau *Includes American Indian and Alaska Native alone, Native Hawaiian and Other Pacific Islander alone, and Two or More Races **Hispanic origin based on Spanish language. Note: 1970-90 Figures are from sampled counts. Source: U.S. Census Bureau. US Population Comparison by Ethnic Group, 1970-2050 (Numbers in thousands) Data compiled by the William C. Velasquez Institute

21. © 2006 Population Reference Bureau Source: State of California, Department of Finance, Population Projections by Race/Ethnicity, Gender and Age for California and Its Counties 2000-2050, Sacramento, California, May 2004. Note: The Department of Finance uses a baseline cohort-component method to project population by gender, race/ethnicity and age. For the purposes of this projection, the seven-race/ethnic categories are mutually exclusive. Minority refers to Latino, Asian/Pacific Islander, Black, and American Indian populations. California Population Comparison by Ethnic Group, 2000-2050 Data compiled by the William C. Velasquez Institute