EESA01H3 Lecture Notes - Lecture 1: Mao Zedong, Thomas Robert Malthus, Take 30
18 Oct 2015
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Chapter 6: human population: china most populous nation. 1/5 of people as of 2011: mao zedong regime 1949-pres. Population control program- 1 child per fam: increase of contraception and abortion availability. 1970s one child fam receive better access to school, medical care, jobs. Human pop @ 7m: take 30 years to reach 1 billion counting seconds, travel 1b km drive trans-cda hwy 128k times or fly to moon 2500 times. 2. 6ppl (births-deaths) every second: exponential growth- increase in quantity by fixed %/perunit time accelerates pop. Increase: even if growth rate steady, population size will increase by greater increments each generation. For low rate of doubling time, take 70 and divide by apg(growth)r. 1700s, industrial rev outset pop growth good thing: more children= more support in old age, british economic thomas malthus believed laws needed to regulate population growth- otherwise outgrow food supply= starvation, war, disease.
