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Today in class we started a new powerpoint that went into more detail about what we were learning. Components of Population Growth: Geographers measure population change in a country or the world as a whole by using three types of measurements. Crude Birth Rate, Crude Death Rate, and Natural Rate of Increase. Natural increase is about 82 million people are added to the population of the world annually. More than 95% of RNI is in developing countries.
    Why is Global Population Increasing? Fertility or TFR for the world is 2.5 (World Factbook says 2.42). TFR exceeds 5 in sub-Saharan Africa, while 2 or less in nearly all European countries. Another factor is Mortality. Mortality is measured by geographers to better understand death rates in a society, defined as an annual number of deaths of infants under 1 year of age, compared to total live births expressed per 1000 births rather than in a percentage. IMR in 5 in developed countries and 80 in sub-Saharan, Africa. Developed countries will have lower, rates of NRI, CBR, TFR, and IMR and in developing countries those rates will be higher.