The graph shows the three possible results for the future of world population growth from 2000 to 2050. It tells us what will mostly going to happen by 2050 we have high , medium or low fertility rates.
If the world wide trend kept on high fertility rate of 2.5 children per women, we can expect a population of almost 11 billion. The rate in India is 2.72 and this is very important as the Indian population is high and up to 1 billion. Same as in the Arab countries the rate is high for example in the UAE its 2.42 and in Egypt is 2.66. if we have countries with medium fertility rate as in USA , 2.05, the world rate will be 8.9 billion by 2050. With low fertility rate as in Europe and in Japan, not exceeding 2 the world figure will be nearly 7.3 billion.
If this some of high fertile counties will stay at the same rate we will see a world population more than 10 billion and is it was like low fertility countries we will see a population of around 7 billion.
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