Human Population Demographics Perceptions Vs Reality Essay

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06 December 2024.

Human Population: Perceptions vs Numbers


Paul Ehrlich’s IPAT model demonstrates the crucial impacts of human population on the environment (Liu 283). The model argues that environmental impact is a function of population growth, affluence, and technology (Liu 283). Given the crucial role that population growth plays in environmental protection, it is prudent that environmentalists understand the dynamics and structure of human populations across the globe, how these have evolved, and future trends.
The Gapminder quiz provides an important starting point for assessing one’s understanding of human populations and their likely impact. The image below presents my score on the Gapminder quiz.

SECTION A


While most of the responses that I got wrong were generally surprising, three of these were particularly interesting:
What share of the world’s population lives in countries where women on average have less than 3 babies?

Answer options


A: 40%


B: 60%


C: 80%


There has been a general trend to have fewer children as more and more women prefer small family sizes (Gilbert and Schlenker 183). However, I thought that this trend was more relevant in high-income countries, while low-income countries were yet to adopt the same. Therefore, I expected the percentage to be lower, less than 50 percent to be precise.

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It was interesting…

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…expected to increase in high-income versus low-income countries by 2050.
The popular idea is that high-income countries have high life expectancy. Therefore, like most people, I believed that high-income countries would have higher numbers of old people. This indicates that a majority of people underestimate or lack knowledge on the steps that low-income countries are taking to improve their life expectancy.
At the same time, I answered incorrectly question 10, which assesses the share of the world’s population living in middle income countries today.
I was among the 84 percent of respondents who got this wrong, having answered 15% instead of 75%. Again, this points a general misconception about the steps taken by low-income….....

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