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Human Population Essay

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Lecture Outlines
Chapter 8 Human Population

Withgott/Laposata Fifth Edition

© 2014 Pearson Education, Inc.

This lecture will help you understand:

•  Population Dynamics •  Demography •  Affluence, technology, the status of women, and the environment •  Demographic transition theory •  Consumption and the ecological footprint

Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings

The Human Population Explosion

Current world population is at about 7 billion people. Human population expected to nearly double in 50 years. http://math.berkeley.edu/~galen/popclk.html
http://www.census.gov/cgi-bin/ipc/popclockw

Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings

Our world at seven billion
Populations continue to rise in most countries Particularly in poverty-stricken developing nations Although the rate of growth is slowing, we are still increasing in numbers

It would take 30 years, counting once each second, to count to a billion! It would take 210 years to count to 7 billion!
Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings

For years, people lived somewhat in harmony with the environment. They lived in small groups basically hunting and gathering their food. They moved on if food sources became depleted.

Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings

Neolithic Revolution

10,000 years ago in the Middle East, humans began to farm and domesticate animals for their food. People settled into small communities which created opportunities for job specialization. The human population increased slowly until the beginning of the 1800's.

Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings

Industrial Revolution

By the 17th and 18th centuries, people developed new ways to make tools, homes, and increased their knowledge of the natural world. Major advancements in science and technology. There was an increase...

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