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Homework. Review your test and correct your essay questions. Friday we will review the questions and then re-test next week. New Material. As a global community, what is our greatest challenge now?
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Homework • Review your test and correct your essay questions. • Friday we will review the questions and then re-test next week.
New Material • As a global community, what is our greatest challenge now? • The world population growth. What happens if the world exceeds its ability to support itself? • The term is Carrying Capacity. Please know it! • Think about places like Ethiopia. • Where is Ethiopia?
New Material • How has China dealt with their ever growing population? • China’s One Child policy. Why was it instituted? When was it instituted and why then? • What are the issues with it? • China is running out of girls. Why?
New Material • Does the US have a form of population control? • I say yes, why? • What are the issues with a rapidly growing population? • 1. Increase in pollution • 2. Increase in disease • 3. Increase competition for resources (food, water, land, air,…. • The Russian Revolution was based on Peace, land and bread because people were starving.
New Material • Birth Rate: • 19 births/1,000 population • 131.4 million births per year • 360,000 births per day • 15,000 births each hour • 250 births each minute • 4 births each second of every day • Death Rate: • 8 deaths/1,000 population • 55.3 million people die each year • 151,600 people die each day • 6316 people die each hour • 105 people die each minute • almost 2 people die each second
New Material • Population Clock • http://www.census.gov/popclock/
New Material • Thomas Malthus – who is he and why is he important? • Paul Ehrlich – who is he and why is he important? • One prediction that they had was: “population growth has indeed contributed to famine, disease, and conflict.” Is this true?
New Material • Strong nations tend to have slow population growth. Why? • What is IPAT? • Impact = Population x Affluence x technology, sometimes add S for sensitivity, meaning development in a sensitive area. • Demography? What is it?
New Material • Age Structure diagrams
New Material • Populations are determined by: • Birth rate, death rate, immigration rate and emigration rates. • TFR – Total Fertility Rates: • Average number of children born per woman her lifetime • RF – Replacement Fertility: • Think of your family. If you an only child then negative growth, one sibling then zero growth..
New Material • Transition Demographics – explain the chart below