The line graph shows population growth in richer and pooper countries between 1750 and 2150. The reference for this graph is done by United Nation Population Prospects, the 1998 Revision, and estimates by the Population Reference Bureau.
It shows in 1750, the total world population was less than one billion and people in less developed countries was more by 2 or 3 times than more developed countries. After 250 years, especially in 2000, a crazy growth in world population by 6.1 billion but the total population in more developed countries was, about one billion only, while the rest was in less developed countries. However, the graph, estimated the total world population growth in 2150 will reach almost 10 billion and this rise will be on less developed countries only.
While the estimated growth in less developed countries in the next 150 years, it means more poor people, more crimes and maybe a lot of wars in poor countries.
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