WEEK 5 POP #1 Introduction World Population Demographics is the study of people themselves o States are extremely concerned about this now and for the future People are a source of power and problems o They are the laborers, the tax base, and they make up the military o When there is not enough to go around in the state then there may be overpopulation and people may migrate to other states :In this video lecture series we will look at demographic transition, population pyramids, and problems predicting people Where are the peoples and how many? How Many People and Where There are 7 billion people on the planet o We are living through an anomaly of human history because population is exponentially growing right now and it is a product of the last 200 years o To understand the future or even today, we have to understand the past and human history For the larger portion of human society, people were hunter/gatherers in very small numbers called bands or tribes This shifts during the agricultural revolution about 10,000 years ago They settled down, grew food, and were able to grow their population in a more stable population This is when it starts a steady, slow growth o Civilization accelerates growth as well o This radically changes when we hit about 200 years ago when we entered the industrial revolution 1 billion people were alive in 1804 123 years later in 1927 2 billion people were alive 33 years later in 1960, 3 billion people were alive
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- Fall '08
- World population