In 2023, the global population will reach approximately eight billion people. This is double what the population was just 48 years previously, in 1975, when it reached four billion people. When we compare growth rates over the selected periods, it took an average of 12 years per one billion people between 1975 and 2023, which is almost double the rate of the period between 1928 and 1975, and over ten times faster than growth between 1803 and 1928. Additionally, it took almost 700 years for the world population to increase by 250 million people during the Middle Ages, in contrast, an increase of 250 million has been observed every three to four years since the 1960s.
FAQs
World population: time taken to double 837-2023 | Statista? ›
The world's current (overall as well as natural) growth rate is about 1.14%, representing a doubling time of 61 years. We can expect the world's population of 6.5 billion to become 13 billion by 2067 if current growth continues.
How many years will it take for the world population to double? ›The world's current (overall as well as natural) growth rate is about 1.14%, representing a doubling time of 61 years. We can expect the world's population of 6.5 billion to become 13 billion by 2067 if current growth continues.
How to calculate doubling time in population? ›To figure out how long it would take a population to double at a single rate of growth, we can use a simple formula known as the Rule of 70. Basically, you can find the doubling time (in years) by dividing 70 by the annual growth rate.
What is the current population doubling time? ›World population has doubled (100% increase) in 40 years from 1959 (3 billion) to 1999 (6 billion). It is now estimated that it will increase by 50% in the subsequent 40 years, to reach 9 billion by 2037.
What is the doubling time of the global human population? ›By the first half of this century, the annual growth rate had reached 10 per 1000 persons (1%), which meant that the world's population would double every 70 years. Unfortunately, the growth rate continued to grow until now it is approximately 17 per 1000 persons (1.7%), which means a doubling time of 41 years.
What if the worlds population doubled? ›If the world's population doubles, a lot of disasters would happen in the world that may be related to health, resources, and the environment. The increase in the world's population also increases the rate of pollution caused by human practices such as the burning of fossil fuels for energy and transportation.
Did it take 1649 years for the world population to double? ›It took 1,649 years for the world population to double, going from 0.25 billion people to 0.50 billion people.
Which country has zero population growth? ›There are several countries around the world that are at or near ZPG, including Iceland, Germany, Portugal, and Poland. The population stabilization that accompanies ZPG is often seen as a critical component to long-term sustainability for a country, region, or the world.
How to calculate doubles? ›We can double any number in two ways. 1) Multiply the number by 2. 2) Add the number to itself. Example: Michelle has 4 balls, and Jane has double the number of balls that Michelle has.
What is the rule of 70? ›The rule of 70 is used to determine the number of years it takes for a variable to double by dividing the number 70 by the variable's growth rate. The rule of 70 is generally used to determine how long it would take for an investment to double given the annual rate of return.
How fast will the population double? ›
That means the human population on Earth will double from 7.4 billion in 66 years, or in 2083. However, as previously mentioned, doubling time is not a guarantee over time. In fact, the U.S Census Bureau predicts that the growth rate will steadily decline and by 2049 it will only be at 0.469%.
How many humans have ever lived? ›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. If we add the number of people alive today, we get 117 billion humans that have ever lived.
How many people can the earth support? ›On October 18, 2023, the International Union for the Scientific Study of Population (2023) broadcast a Yes-or-No debate on the statement: “The population of humans that can be supported sustainably on the planet at a reasonable standard of living is below 4 billion.” Here is an abridged version of Joel E.
How long will it take to double the world's population? ›By the 2080s, it will once again have taken approximately 100 years for the population to double to a predicted 10.4 billion.
When did we hit 1 billion population? ›4. World population did not reach one billion until 1804. It took 123 years to reach 2 billion in 1927, 33 years to reach 3 billion in 1960, 14 years to reach 4 billion in 1974 and 13 years to reach 5 billion in 1987. 5.
When was the last time the world population doubled? ›For example, the global human population doubled between 1950 and 1987, going from 2.5 to 5.0 billion (37 years); it doubled between 1956 and 1994 from 2.8 to 5.6 billion (38 years); and it will have doubled between 1960 and 1998 from 3.0 to 6.0 billion (38 years).
Will the population double by 2050? ›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.
How many years will it take for the population of 2000 to double? ›According to the graph, the population is projected to reach 10 billion around the year 2050. Based on the graph, it appears that the population of 2000 will double in approximately 40 years.
When did Earth hit 1 billion population? ›World population did not reach one billion until 1804. It took 123 years to reach 2 billion in 1927, 33 years to reach 3 billion in 1960, 14 years to reach 4 billion in 1974 and 13 years to reach 5 billion in 1987. 5. The highest rate of world population growth (2.04 per cent) occurred in the late 1960s.