Picture This. In just 30 years, the world will look very different. Since 1950, the global population has grown from 2.5 billion to more than 7.7 billion. By 2050, however, that number is projected to reach just 9.7 billion.
The world's population is expected to increase by nearly 2 billion persons in the next 30 years, from the current 8 billion to 9.7 billion in 2050 and could peak at nearly 10.4 billion in the mid-2080s.
In the International Journal of Forecasting study's median scenario, the global population is 11.1 billion in 2100, 10.4 billion in 2200 and 7.5 billion in 2300.
United Nations long range projections . . .
The United Nations "high variant" has world population growing to 28 billion by 2150; the "medium variant" has growth levelling off at 11.5 billion around 2075, and the "low variant" has world population growth ending at 7 billion around 2050 followed by population decrease.
8 Billion (2022)
World population has reached 8 billion people on November 15, 2022 according to the United Nations.
In 2022, world population reached 8 billion. The UN's 2022 report projects world population to be 9.7 billion people in 2050, and about 10.3 billion by 2100. The following table shows the largest 17 countries by population as of 2020 and shows how the rankings will change between now and the end of this century.
The country is now predicted to reach a population of 30 million in 2032-33, later than previously expected due to reduced immigration levels caused by the pandemic pause. The last intergenerational report, released by Josh Frydenberg in 2021, predicted Australia would hit the 30 million milestone in 2030-31.
In 2100, the Australian population is projected to be 42.9 million people equivalent to a more than 10-fold increase since 1900 and a more than doubling during the 21st century. Australia is the 13 largest economy in the world. The country is expected to drop to 16th place by 2030 and out of the top 20 by 2050.
With Australia's population projected to increase to between 32 and 37 million people by 2042, the median age of the population would increase by between 1.0 and 3.6 years.
With this context and timeframe in mind, the demographers estimate that 109 billion people have lived and died over the course of 192,000 years.
Based on known risks, the really cataclysmic ones, those that might exterminate us as a species, are fairly rare. Based on what we know today, it would be very unlikely that we wouldn't be around in the year 3000. There certainly would be bad times, but some of us would get through it. That leaves unknown risks.
1000 years BCE the world population was 50 million people. 500 years BCE it was 100 million, and in the year 0 around 200 million people were estimated to live on Earth.
Earth's capacity
Many scientists think Earth has a maximum carrying capacity of 9 billion to 10 billion people.
“This is not just 36 million by 2050. We're talking about a population of 80 to 100 million people by the end of the 21st century.” According to the latest ABS population projection data, Australia's population could reach up to 70.1 million people by 2101.
Australia is still getting bigger, with the population expected to close in on 30 million within a decade from 26 million now. The nation is also getting older faster thanks to the pause in overseas migration when borders were shut during the pandemic.
The Australian Academy of Science has recommended that 23 million people would be a safe upper limit for Australia.
The current population of Australia in 2023 is 26,439,111, a 1% increase from 2022. The population of Australia in 2022 was 26,177,413, a 0.99% increase from 2021.
By 2060, Sydney would have 8.4 million, an increase of 80 per cent from now. Melbourne would overtake Sydney, doubling its population to 8.5 million.
Overview. Australia's population story has historically been one of strong growth. Australia's population was 26 million at 30 June 2022, having grown around 1.3% a year on average over the past 3 decades, from 17.5 million at 30 June 1992.
An oft-quoted statistic about the growth of human population is that it took 200,000 years to reach one billion. But in the 200 years after that, the world was teeming with seven billion people. The United Nations has predicted this will reach 9.7 billion by 2050 and 11 billion by 2100.
The world's population is predicted (by some researchers) to reach 14 billion in 1000 years.
In 2100 there will be approximately 2 billion children in the world, according to estimates from the United Nations. That's about the same number of children in the year 2000.