By the end of the century, the world’s population could be 2 billion less than the United Nations had predicted. While this type of decline is somewhat predictable on natural resources, it is largely due to improved women’s health.
This information has come up in a study of Washington University in the United States. The research report was published in the July 17 medical journal The Lancet.
According to research, after 80 years, the total population of the world could be 880 crore, which is about 200 crore less than the UN estimate. The world’s population will be the highest in 2064, about 970 crore.
The study found that several countries, including Japan, Spain and Italy, would halve their populations.
This cleared the position of the country like Bangladesh. Studies have shown that after 80 years, the population of Bangladesh may decrease to 7 crore 13 lakhs. However, if the Sustainable Development Goals (SDGs) set by the United Nations are achieved by 2030, this number is likely to decline further. Because women's health will improve here. In 2017, the population of Bangladesh was 15 crore 79 lakhs. After 80 years, this number will be reduced to 8 crore 13 lakhs. However, if SDG is acquired by 2030, it will be further reduced to 7 crore 41 lakhs.
According to the report, the population of Bangladesh will be the highest in 2039. At that time the total population of the country may be about 17 crore 34 lakhs.
At the same time, it says the population of sub-Saharan Africa will be tripled in the next 80 years.
The number of older people will exceed the number of young people. By 2100, the number of people under the age of 65 will be around 240 crore, while the number of people under the age of 20 will be only 170 crore.
The main reasons for the shrinking population are widening access to the contraceptive process and improving the education of women and girls. If these tendencies are reduced, higher development of the population will occur. For example, although the population of sub-Saharan Africa is projected to grow further, its fertility rate is projected to decline from 4.6 births per woman in 2017 to 1.7 per 2,100. If this reduction in fertility cannot be realized, the overall increase will be much higher.