![]() ![]() One way to understand the distribution of people across the world is to reform the world map, not based on the area but according to population. The demographic transition in England and Wales.Size of young, working-age and elderly populations linechart, with projections.Size of young, working-age and elderly populations stacked area chart.Projected world population by level of education.Population, including UN projections Line chart with dashed projections, 10000 BCE to 2100.Population, including UN projections Line chart with dashed projections.Population younger than 15, including UN projections, by world region.Population growth rate with and without migration.Population growth rate vs child mortality rate.Population growth rate by level of development.Population growth rate UN (with projections).Population by age group, including UN projections.Natural population growth UN (with projections). ![]() Historical world population: comparison of different sources.Fertility rate: children per woman With projections.Children per woman vs population growth.Annual number of deaths by world region.Annual number of births by world region.Population by world region, including UN projections Stacked area chart.Comparison of United Nations population projections.Annual population growth UN (with projections).In the article we show the data and explain why fertility rates declined.Īge Structure – What is the age profile of populations around the world? How did it change and what will the age structure of populations look like in the future? It comes to an end when the average number of births per woman – the fertility rate – declines. Life expectancy, which measures the age of death, has doubled in every region in the world as we show here.Ĭhild & infant mortality – Mortality at a young age has a particularly big impact on demographic change.įertility rates – Rapid population growth has been a temporary phenomenon in many countries. Life expectancy – Improving health leads to falling mortality and is, therefore, the factor that increases the size of the population. We explain how we know that population growth is coming to an end, and present projections of the drivers of population growth. The world population growth rate declined from around 2% per year 50 years ago to under 1.0% per year.įuture population growth – This article focuses on the future of population growth. The world population increased from 1 billion in 1800 to around 8 billion today. Yet in 2021, life expectancy for the least developed countries lagged 7 years behind the global average, it added.When and why did the world population grow? And how does rapid population growth come to an end? These are the big questions that are central to this research article. With global life expectancy at birth reaching 72.8 years in 2019, which is an improvement of almost nine years since 1990, the reductions in mortality are projected to result in an average global longevity of around 77.2 years in 2050. Fertility has fallen markedly in recent decades for many countries, the report said adding that populations of 61 countries or areas are projected to decrease by 1 per cent or more between 20.Īlso, the number of persons aged 65 years will be more than twice the number of children under age 5 and about the same as the number under age 12 by 2050. Notably, the global population is growing at its slowest rate since 1950, having fallen under 1 per cent in 2020. “Countries of sub-Saharan Africa are expected to contribute more than half of the increase anticipated through 2050.” The United Nations has said the global population will increase up to 2050 and will be concentrated in eight countries, including India and Pakistan. He added, “At the same time, it is a reminder of our shared responsibility to care for our planet and a moment to reflect on where we still fall short of our commitments to one another.” This is an occasion to celebrate our diversity, recognise our common humanity, and marvel at advancements in health that have extended lifespans and dramatically reduced maternal and child mortality rates,” said UN Secretary-General Antonio Guterres. “This year’s World Population Day falls during a milestone year when we anticipate the birth of the earth’s eight billionth inhabitant. The report also suggests that the global population could grow to around 8.5 billion in 2030 and peak at around 10.4 billion in the 2080s. Bhubaneswar: The global population will hit the 8-billion mark on Tuesday (November 15), and India is projected to surpass China as the world’s most populous country in 2023, the World Population Prospects 2022 released on World Population Day said.Īt present, the world population is 7,999,959,816. ![]()
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