The current world population of 73 billion is expected to reach 85 billion by 2030 , 97 billion in 2050 and 112 billion in 2100, according to a new un desa report, “world population prospects: the 2015 revision”, launched today “ understanding the demographic changes that are likely to unfold over the. How many people are there in the world world population has reached 75 billion world population live counter with data sheets, graphs, maps, and census data regarding the current, historical, and future world population figures, estimates, growth rates, densities and demographics. The united nations just released updated population projection figures, and it looks like our world is going to get more crowded the un estimates that the current world population is about 73 billion based on their main middle fertility projections, the un expects that we will hit 83 billion — one billion. There's good reason to think these un population projections are a little high, they make an assumption about fertility that is just inconsistent with anything we' ve ever seen. The 2017 revision of world population prospects is the twenty-fifth round of official united nations population estimates and projections that have been prepared by the population division of the department of economic and social affairs of the united nations secretariat the main results are presented in a series of excel. These findings relate to the accuracy of forecasts produced for indus- trialized countries much less is known about the reliability of population forecasts for developing countries inoue and yu (1979) investigated the errors in total population size of six rounds of united nations projections, with base years from 1950 to 1970.
We produce probabilistic projections of population for all countries based on probabilistic projections of fertility, mortality, and migration we compare our projections to those from the united nations' probabilistic population projections, which uses similar methods for fertility and mortality but deterministic. In a biennial report released last week, the un population division increased slightly a projection it uses to forecast the size of the human population the low- variant scenario of population growth now foresees 117 million more people on the planet in 2050 than it did two years ago while the median-variant scenario,. Every two years, the united nations population division issues a new revision of world population prospects, the official set of united nations population projections frequent revisions are necessary because, as new data on population dynamics at the country level reach the united nations, past estimates of population.
In its 24th round of estimates released in 2015, it was projected that the population of india will surpass that of china's by 2022. Key messages the world's population increased from 25 billion in 1950 to around 73 billion in 2015, and is expected to continue to rise until 2050/2100 under most un projection variants assuming the 'medium fertility' projection variant, global population might increase to 97 billion by 2050, and rise further to 112 billion.
The un has recently released revised projections for global population growth almost every page of their report, available here [pdf], has implications for international development the following provides some of the key findings global trends: more than half of global population growth between now and. For the sres scenario quantification three different population trajectories were chosen to reflect future demographic uncertainties based on published population projections (lutz, 1996 un, 1998 see chapter 3) global population ranges between 7 and 15 billion people by 2100 (figure 4-5) depending on the speed and. If fertility does not fall at all – and it has not budged in the last 60 years – the country's population projection for 2100 veers towards 960 million people as recently as 2004, the united nations' expected africa to grow only to 22 billion people by 2100 that number now looks very out of date. World population prospects 2017 wpp home frequently asked questions data ▻ download center interactive data maps graphs reports/documents ▻ definition of regions data sources glossary of demographic terms publications world urbanization prospects population division close graphs.
This is a list of countries by future population using the medium variant ranging from 2020 to 2100 in decades or ten-year periods, as estimated by the 2015 revision of the world population prospects database by the united nations population division all figures are rounded and given in thousands contents [ hide. The united nations long-range population projections geoffrey mcnicoll the united nations population division biennially publishes world and national population projections to the year 2025 the medium variant of these, despite the usual disclaimers against predictive intent, is widely used. The united nations regularly publishes projections of the populations of all the world's countries broken down by age and sex these projections are the de facto standard and are widely used by international organizations, governments and researchers like almost all other population projections, they are produced using.