Midterm 1.3 Flashcards
Malthus’ perspective
Human pop will inc exponentially
Food prod increases arithmetically (linear)
Deaths would soon increase if births dont stop
Positive checks and negative checks
Malthus:
Pos: increase death rate
Neg: decrease death rate
Marx perspective on pop growth
Social classes that compete for resources
Prob isnt too much ppl or little food:
Private capitalist own the means of meeting human needs
Where is pop growth happening
Neo malthusians
We are approaching or have surpassed earths carrying capacity
Neo-marxists
Believe eliminating oppression and poverty through social change is key
Ehrlich
Inc human pop would result in famine and conflict as there would not be enough resources
Cornucopians (boomsters)
All major economic, social and env probs can be fixed with technology
Improvements in food supply tech
Gmo, hybrids Ag machines Monoculture Agrochemistry Food storage and distribution tech
Green revolution
Increase in agr productivity across globe
More productive, domestication
Surplus
What has lead to human pop explosion
Nutrition (more food)
Medicine
Sanitation: less disease
Growth rate influences
Fertility
Death rate of humans under 40
Human longevity
Crude birth rate CBR
of births per 1000 ppl per year
Crude death rate CDR
deaths per 1000/yr
Total fertility rate TFR
of children born to an average woman in a pop during her lifetime
Replacement level fertility
A fertility rate that will replace woman and partner = 2.1
