The chart shows three possible results for the future population from 2000 to 2050.it tells us what will mostly going to happen in 2050 if we have high, medium or low fertility rates.
If the trend worldwide is kept going on high fertility rate of 2.5 children per woman, we can say that the world population is mostly about 11 billion. The rate in India is 2.72 and this is very high and it is up to 1 billion. In addition, almost the same high rate is for the Arab countries. Take the UAE as an example, in the UAE the rate is 2.42 and in Egypt it is 2.66. However, if we have a rate similar to the countries with medium fertility rate such as USA, which is 2.05, the world figure in 2050 will be 8.9 billion. With low fertility countries such as Europe and Japan, the world figure in 2050 will be about 7.3 billion.
In conclusion, we will see a figure close to 10 billion by 2050, if the same rate in China and India continue. On the other hand, with low fertility rate countries, the world population will be around 7 billion.
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