As we can see graph shows the population growth in rich and poor countries in the period between 1750 and 2150; and that show the high increase between 1950 and 2050.
From 1750 to 1900 the world population was stable; in 1900 to 1950 was the beginning of the quickest growth of population. In 2000 the population of the world reached to 6.1 billion or three times what it was in 1950. The world population graph shows that it will be between 8 and 10 billion in 2050 and the population in 2100 and 2150 is predicted to be over 10 billion.
Finally we can see that the world population still growing more and the sharpest increase in the graph is between 1950 and 2050. Then it will be is estimated to grow more slowly
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