World Population Will Nearly Double By 2100

Posted: Aug 12 2015, 3:07am CDT | by , Updated: Aug 12 2015, 3:09am CDT, in Latest Science News


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World Population Will Nearly Double by 2100
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The world population is 7.3 billion presently. It will surpass 11 billion by the end of the century, according to UN Population Division projections

The world population is growing at an unprecedented rate. It will nearly double as much as we have today by 2100.

Currently, the world population is 7.3 billion. It will be 9.7 million in 2050 and will cross 11 billion by the end of the century, according to United Nations Population Division.

The global population growth will be largely driven by Africa. The continent’s current population is 1.2 billion. It is expected to triple or quadruple over the next 85 years. This is all due to consistent rapid growth in population in the region. Nigeria will likely be the biggest contributor if it continues to follow the current trend.

United States will also have a significant increase in population. The country is projected to add an average 1.5 million people each year, which will push the current count of 322 million people to 450 million.

According to global projections, Asia which is the most populous continent right now will remain most populous continent in future as well. Asia’s current population is 4.4 billion. It is expected to exceed 5.3 billion till the mid of the century but will decline to 4.9 billion by the end of the century.

The report also examined the Potential Support Ratio (PSR) of different countries. It is way to determine the aging population in a country. It tells the number of working-age people (20 to 64) per one elderly person aged 65 or over. The more elderly population grows, the more PSR falls. Meaning there are fewer people to support elderly people. Japan has the lowest PSR with 2.1. United States’s PSR is projected to decline from 4.0 to 1.9 till 2100. Germany, China, Mexico and Bangladesh will also face a sharp decline by the end of the century.

These estimations, presented at 2015 Joint Statistical Meetings Monday, also indicate how important it is to take measurements for controlling rapid population growth. It has an impact on government policies like high fertility countries face many problems including health, environmental and economical. According to John R. Wilmoth the director of UN Population Division, the world population growth will not end until fertility level declines.

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<a href="/latest_stories/all/all/47" rel="author">Hira Bashir</a>
The latest discoveries in science are the passion of Hira Bashir (). With years of experience, she is able to spot the most interesting new achievements of scientists around the world and cover them in easy to understand reporting.




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