The EconomyAccording to the report, India's GDP will rise to take the number-three spot, while France, Germany, Japan, and the UK will stay among the world's 10 largest economies. By 2050, China's gross domestic product will overtake that of the United States, but fall back into second place by 2100, they predict.
Depending on which estimate is used, human overpopulation may have already occurred. Nevertheless, the rapid recent increase in human population has worried some people. The population is expected to reach between 8 and 10.5 billion between the years 2040 and 2050.
The 50 Most Populous Countries
| Country | Population (2020) |
|---|
| 1 | China | 1,439,323,774 |
| 2 | India | 1,380,004,385 |
| 3 | U.S. | 331,002,647 |
| 4 | Indonesia | 273,523,621 |
As it stands now, though, the world's population is over 7.3 billion. According to United Nations predictions it could reach 9.7 billion people by 2050, and over 11 billion by 2100. Population growth has been so rapid that there is no real precedent we can turn to for clues about the possible consequences.
However, it goes on to state that though India will be the world's most populous country in 2100, its population is set to decline to 1.09 billion, or 109 crore, a drop of 32 per cent from the projection for 2048.
Population growth by world regionTwo hundred years ago the world population was just over one billion. Since then the number of people on the planet grew more than 7-fold to 7.7 billion in 2019.
India is expected to overtake China as the most populous country in the world by 2100, according to the new study. This is despite the fact that the size of its population is expected to decline from today's numbers - dropping from 1.3 billion in 2017 to less than 1.1 billion at the end of the century, researchers say.
The projections – made by the UN's Population Division – suggest that by 2027, India will surpass China to become the world's most populous country.
India is expected to overtake China as the world's most populous country by 2027. On a percentage basis, all 10 countries that are projected to experience the biggest growth in population by 2100 are in Africa, led by Niger (581% increase), Angola (473%) and Tanzania (378%).
There are several countries around the world that are at or near ZPG, including Iceland, Germany, Portugal, and Poland.
In 2017 the UN predicted a decline of global population growth rate from +1.0% in 2020 to +0.5% in 2050 and to +0.1% in 2100.
The rapid population growth is the result of declining mortality since the 1950s unmatched by changes in fertility. There are significant socioeconomic and rural-urban mortality differentials in Africa, but as yet only highly educated urbanites have measurably reduced their family size.
Top 5 Countries to Travel which has Most Number of Indian Residents
- Mauritius. Mauritius is often compared to heaven on earth due to its endless spread of calm, blue ocean.
- Guyana. Guyana is located on South America's North Atlantic coast.
- Trinidad and Tobago.
- Fiji.
- United Arab Emirates.
The world's largest ethnic group is Han Chinese, with Mandarin being the world's most spoken language in terms of native speakers. The world's population is predominantly urban and suburban, and there has been significant migration toward cities and urban centres.
Top 10 Biggest Economies in 2020
- China: $29.47T.
- United States: $22.32T.
- India: $12.36T.
- Japan: $5.89T.
- Germany: $4.59T.
- Russia: $4.52T.
- Indonesia: $4.01T.
- Brazil: $3.60T.
Countries in the World:There are 195 countries in the world today. This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of Palestine.
