The is a video that speaks about the population growth in the world that now the earth has about 7 billion population and with this growth rate in 2050 it might reach to about 9.3 billion people. Now the growth rate is about 1.1 while in the past it was 1.3 that take us to this population. One of the scientists Richard Melse said that the growth rate of population goes exponentially while the growth rate for food resources can increase in a line direction. Which that is clear that it might causes famine, starvation and the medical treatment will be much harder than now.
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