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Biology 2485B - Lec 3.docx

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Department
Biology
Course
Biology 2485B
Professor
Ben Rubin
Semester
Winter

Description
2485 Lec 3 Jan 16  2014 Thomas Malthus • Like natural selection – growth is exponential, natural environment is limited • Malthus – we can never keep up with exponential growth o He predicted we would starve to death o Food production rate is linear; growth is exponential History of human pop • Modern tech, the use of tools give us an advantage • 2 perspectives o Malthus is right but predicted collapse to early o Malthus is wrong and we can increase carrying capacity Neo­Malthusian (Paul Ehrlich) • Post­WW2 • Said that people would die of starvation in the 70­80s IPATS model • Impact = Population x Affluence x Technology x Sensitivity • Prediction – everything crashes, but pollution goes up How are Neo­malthusians wrong in the past? • Neoclassical model o Household  ▯industry  ▯household • Environmental economic model o Includes things like the environment and climate  Assumptions of neoclassical model • Reso
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