Population geography is a major branch of human geography that focuses on the scientific study of people, their distributions and population density . In order to study these factors, geographers identify the changes (increments and decrements) in population, peoples ' migration and settlement patterns . Population geography is closely related to demography. There is a close tie between the two because the study of changes in population requires the population geographers to keep up with statistics and the current and the past trends. Most common factors that affect population are birth rate, death rate and migration. Some populations grow at different rates than others. Health care, diseases, war and natural disasters all affect the rate at which a population grows . Some of the major topics relevant to the study of population geography are population distribution, population density and the changes in overall population . In order to comprehensively understand population geography, one must understand the links between the past population and the current population.
Figure 1: World Population Distributions
The population in the early days was much lower in comparison to now. Around 8000 B.C, the earth was populated with roughly 5 million humans . The population escalated to 200 million from 8000 B.C to 1 A.D . The PGP (Population Growth Rate) calculated for that time period is .05 per year . Population growth rate is the calculation of the increase in the population during a specific time period which is expressed as a fraction of the initial population at the start of that time period. The PGR calculation takes the number of births a...
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... birth control and family planning . In some countries such as China, the number of children must be regulated per couple. Some geographers suggest that other parts of the world should adopt policies like the one that china enforces for the betterment of the planet . According to the World Watch Institute, the “Nine Population Strategies to Stop Short of 9 Billion” are very important for all of us. Some of the main ones are “Provide universal access to safe and effective contraceptive options for both sexes”, “guarantee education through secondary school for all, especially girls” and “End all policies that reward parents financially based on the number of children they have” . The geographers have done their best by coming up with their list with is backed up by research. Now, it is our job to follow the list and reward the geographers for their hard work.
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