World Population Clock: 8 Billion People (LIVE, 2023) - Worldometer.
The projected world population on Jan. 1, 2023, is 7,942,645,086, an increase of 73,772,634, or 0.94%, from New Year's Day 2022. During January 2023, 4.3 births and 2.0 deaths are expected worldwide every 1 second.
Historic growth of world population
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.
The current world population of 7.6 billion is expected to reach 8.6 billion in 2030, 9.8 billion in 2050 and 11.2 billion in 2100, according to a new United Nations report being launched today.
No demographic data exist for more than 99% of the span of human existence. Still, with some assumptions about population size throughout human history, we can get a rough idea of this number: About 117 billion members of our species have ever been born on Earth.
At the most wildly optimistic estimate, our species will last perhaps another billion years but end when the expanding envelope of the sun swells outward and heats the planet to a Venus-like state. But a billion years is a long time.
The number of humans ever born is probably around 80 billion, though many died in infancy. Out of this total, almost half have been born in the last two millennia (since the year 1 AD). One human in five (15 billion) was born during the last two centuries and almost one in ten (8 billion) is still alive.
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.
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 researchers forecast that by 2050 life expectancy for females will rise to 89.2-93.3 years and to 83.2-85.9 years for males. The U.S. Census Bureau and the Social Security Administration project life expectancy in 2050 of 83.4-85.3 years for females and 80.0-80.9 years for males.
Earth's capacity
Many scientists think Earth has a maximum carrying capacity of 9 billion to 10 billion people.
Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa.
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.
Gender ratio in the World
As of 2021, There are 3,970,238,390 or 3,970 million or 3.97 billion males in the world, representing 50.42% of the world population. The population of females in the world is estimated at 3,904,727,342 or 3,905 million or 3.905 billion, representing 49.58% of the world population.
The current population of Australia is 26,374,141 as of Monday, June 19, 2023, based on Worldometer elaboration of the latest United Nations data.
In the next 1,000 years, the amount of languages spoken on the planet are set to seriously diminish, and all that extra heat and UV radiation could see darker skin become an evolutionary advantage. And we're all set to get a whole lot taller and thinner, if we want to survive, that is.
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.
Heatwaves will be more frequent and long-lasting, causing droughts, global food shortages, migration, and increased spread of infectious diseases. Moreover, as the polar ice will melt, sea levels will rise substantially, affecting a large number of coastline cities and as many as 275 million of their inhabitants.
Homo habilis, sometimes known as "handyman", was one of the oldest known humans and lived between 2.4 million and 1.4 million years ago in Eastern and Southern Africa.
Researchers have announced the naming of a newly discovered species of human ancestor, Homo bodoensis. The species lived in Africa about 500,000 years ago, during the Middle Pleistocene age, and was the direct ancestor of modern humans, according to scientists.
Adam is the name given in Genesis 1-5 to the first human.