How Does Population Grow Today

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During 1804 the world’s population reached its first billion. Up until the last century the human population has been increasing rapidly. Today it has reached about 7.4 billion people, adding about 80 million per year.

There are many different theories and views about how population growth is affecting the world we live in today, but one of the main theories was Malthus’s. In the late 1700s Thomas Malthus proposed that “population growth would eventually outstrip food production and lead to famine, conflict and human misery for the poor as a consequence” (Middleton,1995, page 26). To him the carrying capacity is fixed and there will come a point where the earth’s population will eventually exceed it (population shoot). “Malthus proposed that
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This occurs because “high fertility more than compensates for the high mortality, an implication of risk aversion of households. In one numerical illustration, households whose children have a 75% survival rate choose to have six children, of whom an average of 4.5 survive. The households whose children have a 95% survival rate have two children, of whom an average of 1.9 survive” (Sachs,2001, pg. 36). Indicating that the poorer countries with low mortality rates have a high fertility rate since the chances of their children surviving is very low, therefore, they reproduce …show more content…
Our aim today is to limit population growth within the earth’s carrying capacity. During the pre-industrialisation time people would delay the age of marriage, banish sexual intercourse after birth of a child and restrict marriage based on climates, all to reduce population growth. In the more developed countries having large families depends mostly on income and it’s therefore, a rational choice as children can be expensive.

“According to Malthus’s theory, there exists a demographic evolution which consists of 4 stages. The first is the pre-industrial stage, where birth and death rate were high and population growth was slow. The second stage was population explosion, with improved technology and better living standards. The death rate is low and birth rate is high leading to high population growth rate. The third stage was a decline in birth rate due to socio-economic changes and the last stage lead to a stabilized population growth.” (Shah, 2015) The aim is to get all the countries in the final stage where population growth becomes

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