3.1: The Human Population

Introduction to Environmental Science · LibreTexts

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    Learning Objectives

    By the end of this chapter, you will be able to:

    • State the current size of the human population.
    • Interpret age-structure diagrams.
    • Explain what the demographic transition model represents and describe the societal changes that cause the demographic transition.
    • Describe what happens to birth rates, death rates, population growth rate, and population size as a country moves through the stages of the demographic transition model.
    • Give examples of countries in the different stages of the demographic transition models and match age-structure diagrams with the stages of the demographic transition model.
    • Define life expectancy and explain how it changes as a country moves through the demographic transition model.
    • Define fertility and explain how it changes as a country moves through the demographic transition model.
    Screenshot (26).png
    Figure \(\PageIndex{1}\): Shows the increase in human population size starting in 1750 and predicted out to 2050. The orange area represents the human population in industrialized countries and the blue/green area represents the human population in less-industrialized (developing) countries. The greatest amount of human population growth will be in less-industrialized countries.

    This page titled 3.1: The Human Population was last modified on Thu, 21 Jul 2022 01:32:43 GMT and is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Caralyn Zehnder, Kalina Manoylov, Samuel Mutiti, Christine Mutiti, Allison VandeVoort, and Donna Bennett (GALILEO Open Learning Materials) via source content that was edited to the style and standards of the LibreTexts platform.