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According to the UN, world population is expected to grow to 9.2 billion by the year 2050. What challenges do you see if this prediction proves accurate?
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Students should be able to predict future population trends. Students will discuss consequences / challenges based upon future population trends. Students will fully comprehend the 4 phases of the Demographic Transition Model.
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China1.3 Billion India1.2 B USA313 Million Indonesia246 M Brazil203 M Pakistan187 M Bangladesh159 M Nigeria155 M Russia139 M Japan126 M
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India 1.7 Billion China 1.3 B USA 403 Million Nigeria 390 M Indonesia 293 M Pakistan275 M Brazil223 M Bangladesh194 M Philippines155 M Democratic Republic of the Congo149 M
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Phase #1 – Pre Industrial High Birth Rates High Death Rates Slow Rate of Natural Increase (RNI) Usually associated with poor public health measures like lack of sanitation. AKA – Less Developed Countries, 3 rd World Countries
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Median Age – 18.1 Life expectancy at birth – 38.76 Total fertility Rate – 5.97 children / woman
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Phase #2 – Transitional High Birth Rates Death Rates Fall (Higher Life expectancies) Rapid Rise in the RNI Associated with improved economic and social conditions
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Median Age – 26.5 years Life expectancy at birth – 67.14 years Total Fertility Rate – 2.58 children per woman
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Phase #3 – Transitional Birth Rates Begin to Fall rapidly Death Rates Fall slightly RNI begins to level off In an urbanized and industrial society people begin to see the benefits of smaller families.
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Phase #4 – Industrial Low Birth Rates Low Death Rates RNI is relatively flat or even in slight decline Usually associated with highly industrialized and highly urbanized countries.
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Median Age – 44.8 Life expectancy at birth – 82.25 Total fertility Rate – 1.21 children / woman
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Migration of people from rural areas to urban areas. Growth of cities. Currently about 50% of the world’s population lives in urban areas. This number is increasing at a rapid rate throughout the entire world.
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When the urban population grows more quickly than support services such as housing, transportation, waste disposal and water supply Fairly common in 3 rd World Countries
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English economist, Malthus is best known for his hugely influential theories on population growth. Believed that populations would eventually expand beyond their capability to feed themselves. Population correction
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Founding Father of the Green Revolution. Worked with Mexican scientist and farmers to increase wheat production. His work has helped to prevent widespread starvation in many parts of the world.
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Also sometimes called “1st world countries”. Characterized by high economic development and low Birth Rates Core countries often found in the Northern Hemisphere
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Also sometimes called 3 rd world countries. Characterized by low economic development and high Birth Rates Periphery countries often found in the Southern Hemisphere
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Illegal developments of makeshift housing on land neither owned nor rented by the inhabitants. Fairly common in many LDC’s or 3 rd World Countries
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Many of the participants in Brazil’s world famous Carnival come from the Favelas. Read the following article from TIME magazine: http://www.time.com/t ime/world/article/0,859 9,2091817,00.html http://www.time.com/t ime/world/article/0,859 9,2091817,00.html
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Students should be able to predict future population trends. Students will discuss consequences / challenges based upon future population trends. Students will fully comprehend the 4 phases of the Demographic Transition Model.
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