ENV100Y5 Chapter Notes - Chapter 6: Exponential Growth, Total Fertility Rate, Developing Country
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ENV100Y5 Full Course Notes
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1 (154) the human population at 7 billion. Human population is growing as fast as ever - growing by 80 million annually. Exponential growth is the increase in a quantity by a fixed percentage per unit time. Given percentage of a large number is a greater quantity than the same percentage of a small number. Even if growth is stead = pop will increase with each generation. Perspectives on human population have changed over time - 1700s - seemed like a good thing. Arises from a good thing - our ability to keep more people alive longer. Population growth is correlated with poverty than with wealth. Population is one of several factors that affect the environment. Ipat model (ehrlick and holdren) - impact - on environmental results from interaction among the population, affluence, and technology. Increased population intensifies the impact on the environment bc o o o. Technology can enhance: exploitation of minerals, fossil fuels, old- growth forests, ocean fisheries.
