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population and OverCrowding
Day 5
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DO NOW: Study this political cartoon
DO NOW: Study this political cartoon. In two or three sentences, explain the cartoon and what the author’s purpose might be. Should we be concerned about the amount of population in our world today?
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Thomas Malthus Economist and geographer
Essay on the Principle of Population (1798) Claims based on: 1.) People need food to survive 2.) People have a natural desire to reproduce Food production increases arithmetically (linear growth) while population grows geometrically (exponential growth).
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Malthusian Theory Read the handout
Answer the question on your reading: Malthus claims that population will outpace people’s ability to produce food. Should we be more or less concerned about this issue today? Explain why we should be more or why we should be less
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Thomas Malthus
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HAS THIS HAPPENED?
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Arguments against Malthusian perspective
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Arguments against Malthusian perspective (continued)
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Neo-Malthusians Apply some ideas in the Malthusian theory.
Human population growth must reach a “sustainable” level within carrying capacity. Regional rather than global.
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Paul Ehrlich The Population Bomb (1968) Neo- Malthusian ecologist
Made the argument about the ability of the earth to sustainably provide resources for an exponentially growing population. Mass starvations Societal uprisings Raised the general awareness of population and environmental issues and influenced public policy. “The battle to feed all of humanity is over. In the 1970s hundreds of millions of people will starve to death in spite of any crash programs embarked upon now. At this late date nothing can prevent a substantial increase in the world death rate...”
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The Population Bomb? https://www.youtube.com/watch?v=W8XOF3SOu8I
In the 1960s, fears of overpopulation sparked campaigns for population control. Answer in notebooks: Should we be more or less concerned about this issue today? (Does your first answer change?) Is over or under population more of a problem?
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Growing Population Change Activity
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Past and Future Population Milestones
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