That's an updated estimate according to United Nations data. The new number comes days before the UN Climate Summit, which will take up a range of issues influenced by world population.

So, while the U.S. is not expected to shrink in population by 2100 (reaching 365.6 million), the largest age group will rise from 30-34 to 60-64 due to fewer young people having children.

The 2019 revision of the World Population Prospects (WPP), the United Nations projected that the world’s population would grow from 7.7 billion in 2019 to reach 8.5 billion in 2030, 9.7 billion in ...

The chance that world population in 2100 will be between 9.6 billion and 12.3 billion people is 80 percent, according to the first such United Nations forecast to incorporate modern statistical tools.

World Population In 2100 Could Be 2 Billion Below UN Projections: Study More than 20 countries -- including Japan, Spain, Italy, Thailand, Portugal, South Korea and Poland -- will see their ...

The World over 60 population will be over 3 billion in 2090. This will be over the entire world population in 1960. The Over 65 population in 2100 will exceed the entire world population in 1950.

There is a widely held belief that the world is on a path of out-of-control population growth. Yet analyses consistently show that this is not necessarily the case. A new study published in PNAS ...

So, while the U.S. is not expected to shrink in population by 2100 (reaching 365.6 million), the largest age group will rise ...

Until now, the United Nations — which forecasts 8.5, 9.7 and 10.9 billion people in 2030, 2050 and 2100, respectively -- has virtually had a monopoly in projecting global population.