Table of Contents
The World’s population keeps growing as time goes by. This paper seeks to describe the trend of the world’s population growth from the year 1985 – 2011. It also intends to examine the factors influencing the trends the world’s population growth during the specified period of time i.e. 1985 – 2011.
The World's Population Growth in Terms of the Trajectory that is plotted
The world’s population increased by 450 million people between the years 1986 and 1990, as it also increased by 400 million people for the years between 1996 and 1999. However the increment in the world’s population dropped to only 300 million, even though it picked up all of suddenly to 500 million between the years 1998 and 2006. There was continued growth in population but at a lower rate compared to the previous years, that is to say, it increased by 300 million between the years 2007 and 2009. 200 million people were the increase in the world’s population between 2010 and 2011 (Stewart, 2010).
The Identified Key Periods of Change on the Graph
The key periods of change on the graph are the years between 1986 and 1990; and between 2000 and 2006. This is because the population increased by 450 million and 500 million people respectively (United Nations, 1999).
To what do you attribute each change, i.e. relate such changes to any critical world event(s) which might have brought about each change?
The improved standard of living of the population in many developing countries brought about by urbanization led to an increase in the world’s population during the period between 1986 and 1990 (United Nations, 1999).
The natural increase in population (excess of births over deaths) led to an increase in the world’s population. This can be attributed to improved health facilities around the globe. Governments spend large sums of money on the health sector in the respective countries aiming at reducing maternal and child mortality rates. This was more notable during the period between 2000 and 2006 (United Nations, 1999).
Furthermore, this success is attributed to break through made in the fight against killer diseases in developing countries. It should be noted that the years between 2000 and 2006 was when the use of antiviral drugs to reduce deaths from HIV/AIDS first reached its peak in developing countries. Immunizations against immunizable diseases like Tuberculosis, measles and others also reached great heights (United Nations, 1999).
On the other hand, around this time developed countries invested greatly in health sector of their countries. This can be better seen through equipping hospitals and primary health care facilities with modern technological equipment to ensure that people get appropriate medical attention, hence an increase in the world’s population (United Nations, 1999).
The Relationship between the Line Graph and the Bar Graph
Basing on the bar and line graph plotted above, the population growth rate was high (1985 – 1995). That is 1.85% yet the annual population increase was low (De Klerk, 2009)
When the annual population increase was highest in the years between 2000 and 2006, the population growth rate was lowest that is; 1.19% (De Klerk, 2009)
From 2007 – 2009 the population growth rate increased at a decreasing rate that is; from 1.19% to 1.53% and finally dropped to 1.47% in the ears between 2010 and 2011. The annual population increase dropped between 2007 and 2009 whereas from 2009 – 2011, the annual population increase remained constant at 100 million people (De Klerk, 2009)
The Major Factors Contributing to the Relationships Observed
When the annual population increase was low in the years between 1985, and 1999, the growth rate was high but when the annual population increase was highest, there was need to check population growth leading to a fall in population increase. So therefore this implies that, the population disparities as portrayed in the combined bar and line graph above are as a result of both natural and artificial factors (De Klerk, 2009)
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For the world’s population to double if the growth rate for the year 2000 is 1.15, it will take 1333.3 years (Stewart, 2010).
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