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Facing Overpopulation
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Doubling Time “The Most Important Video You Will Ever See”
DT = 70 / NIR
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Thomas Malthus 1798, British economist
An Essay on the Principle of Population as It Affects the Future Improvement of Society Population will outrun food supply Population increase exponentially (geometric rate) but food increases linearly (arithmetic rate) 2 ways to stop: contraceptives/abstinence or “negative checks” (war, famine, pandemics, etc.)
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Neo-Malthusians Current supporters (esp. after NIR increase during mid 1900s) The Population Bomb, Paul Ehrlich 1968 Huge foundation for global family planning initiatives Even more afraid since all countries have now gone through/are in Stage 2 (rapid growth) LDCs have lower DR now b/c of new medicine from MDCs, not because of increased wealth/resources Pop. is still outpacing econ. develop. Kaplan & Homer-Dixon: Energy resources are now added to the dilemma
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Critics to Malthus Pressure on resources lowered with colonization, migration, etc. Food can grow exponentially thru technology Possibilism Boserup & Kuznets: more ppl actually increases production/ econ growth/ ideas Marxists (Engels): prob lies with unequal distribution of food/$, not actual amount
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Combining Both Beliefs
World may not run out of food, but areas with rapid growth do face shortages Malthus was semi-right about food production rates, but not population Predicted 10 bil by 2000 only 6 bil Ppl have chosen to have fewer kids (stages 3-5) Prob is with distribution of food, not production BUT, doesn’t change that pop. base is still huge produce lots of ppl
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How can we reduce population growth? (lower CBR)
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Anti-Natalist Policies
Restrictive Population Policies: govn’t designed policies to reduce NIR China: “one-child policy”, 1979 Incentives and penalties enacted, services provided Relaxed in rural areas 1976: BR= 25; 1986: BR= 18; 2010: BR= 12 Led to female infanticide (selective killing of baby girls) India: No federal program, but federal funding for clinics Tried sterilization plan protests Relies just on education will surpass China before 2050 Eugenics
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Pro-Natalism Encourage larger families, parenthood
Often found within some denominations (Mormon, Roman Catholic, Amish, fundamental Islam) Restrict contraceptive, planning methods Natalist Politics Tax cuts, baby bonuses (Russia) Long, paid maternity/paternity leave (Sweden) Encourage many kids to replace those lost in war (Iran)
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Epidemiologic Transition
Epidemiology: medical sciences involving scale & geographic connections to explain incidence, distribution, and control of diseases Dr. John Snow Epidemiologic Transition: causes of death in ea. stage of the DTM
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Maps + Epidemiology Cholera- diarrhea & dehydration
Pandemics began in 1816 diff b/w pan-, epi-, and endemic? Death was convulsive, take days/weeks No known cause 1854- Soho, London- Dr. John Snow Medical Geographer Delivered Queen Victoria’s children His results still apply- Lima 1991 (epidemic); Haiti 2010
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Epidemiologic Transition
Stage 1 : Orman, 1971: “pestilence and famine” Malthus: natural checks Often from lack of sanitation Ex: Black (bubonic) Plague, Dysentary Stage 2: “receding pandemics” Often with poor sanitation, overcrowding Highly communicable, infectious Ex: Cholera during early IR, Flu, Ebola
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Epidemiologic Transition
Stage 3: “degenerative & human created diseases” Infections, chronic disorders Measles, AIDS, polio, etc. now lowered with vaccines Ex: Cancer & cardiovascular Stage 4: “delayed degenerative diseases” Ex: former are heightened as pop. ages ** Many Stage 4 & 5 countries have higher DRs b/c…?**
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Epidemiologic Transition
Stage 5 of ET: “reemergence of infectious & parasitic diseases” Evolution of microbes, resistance to drugs Super bugs, new flu strands Increased migration (SARS, H1N1)
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