Presentation on theme: "Human overpopulation is one of the central issues in environmental science. The current human population is somewhat distributed unevenly over the Earth."— Presentation transcript:
1 Human overpopulation is one of the central issues in environmental science. The current human population is somewhat distributed unevenly over the Earth
2 You have questions you will answer as you maneuver through the PowerPoint. Each slide will contain one or all of the following:General informationThe question for you to answerA link to help you answer the questionClickEach page may contain a box exactly like this one –click on the box to lead you to a website which you will use as a resource to answer the question
3 Industrial Revolution Several developments have increased the human population since the mid-17th centuryAdvances in agricultureVaccines for diseaseSanitationFood preservation and storageIndustrial RevolutionGreen RevolutionBriefly describe how the Industrial Revolution and the Green Revolution has helped to increase the world’s human population.Green RevolutionIndustrial RevolutionClickClick
4 Demography is the study of the size, growth, density, distribution, and other characteristics of human population.Describe the different ways the government and other organizations use data collected by a demographer.ClickComplete the “Be a demographer” interactive on the NOVA website and answer the following:What factors influence total fertility rate?What factors influence infant mortality rate?How does the average age at death differ between a developed country and a developing country?What factors influence net migration?What three factors generally account for population growth?Click
5 When demographers look at population trends in individual countries, they take into account the immigration, births, emigration, and deaths.How does a demographer calculate the population growth rate?ClickIf we know the growth rate of a population and assume the growth rate is constant, we can calculate the number of years it takes for a population to double.India is predicted to replace China as the most populous country on Earth. India’s population in 2012 was 1.22 billion. The current population (2013) is 1.27 billion. Calculate India’s current growth rate and calculate how many years it will take India to double its population.
6 Study the map above. Describe the difference between developed and developing countries as it relates to life expectancy.
7 The map above represents infant mortality rates around the world The map above represents infant mortality rates around the world. What do you observe about infant mortality rates between developed and developing countries?What country has the highest infant mortality rate? Why?ClickWhat is the difference between infant mortality rate and child mortality rate?Click
8 Two useful indicators of the overall health of a country is life expectancy and infant mortality rateWhat might you predict about a country which has a relatively high life expectancy and its infant mortality rate is relatively low?
9 Demographers use data on age to predict how rapidly a population will increase and what its size will be in the future. A population’s age structure describes how its members are distributed across age ranges, usually in 5-year increments. Age structure diagrams (population pyramids) are visual representations of age structure within a country for males and females. Each country’s population pyramid can be grouped into one of three categories (rapid population growth, stable population growth, declining population growth).Describe the differences you observe between the three types of population pyramidsExplain the bulge observed in the middle of the age structure diagram for the U.S.ClickExplain the differences you would observe between a population age structure diagram for a developing country vs. a developed country.
10 Historically, nations that have gone through similar processes of economic development have experienced similar patterns of population growth. The theory of demographic transition says that as a county moves from a subsistence economy to industrialization and increased affluence, it undergoes a predictable shift in population growth. In developed countries this transition began in the eighteenth century and continues today. Less developed countries began the transition later and are still in the midst of earlier stages of the model.For each stage of the model describe the birth rate, death rate, and the reason for changes in birth rate and death rate.ClickScroll to #6Describe a strategy that a government might implement to slow its population growth that could be utilized by a country undergoing a demographic transition. Explain how your proposed strategy would work, and describe one potential drawback to the implementation.
11 Complete the following data table with the word high or low FeatureMore DevelopedLess DevelopedStandard of LivingPer capita food intakeCrude birth rateCrude death rateGrowth rateDoubling timeInfant mortalityTotal Fertility RateLife expectancy at birthUrban populationWealth (per capita GNP) (U.S. dollars)IndustrializationEnergy use per capitaIlliteracy rate