Average Number of Years That a Person Born in a Particular Year Can Expect to Live.
Growing at a slower pace, earth population is expected to reach 9.7 billion in 2050 and could peak at almost xi billion around 2100
The world's population is expected to increment by 2 billion persons in the next thirty years, from 7.vii billion currently to ix.7 billion in 2050, according to a new United nations study launched today.
The Earth Population Prospects 2019: Highlights, which is published by the Population Division of the UN Department of Economic and Social Affairs, provides a comprehensive overview of global demographic patterns and prospects. The written report concluded that the world's population could achieve its summit effectually the end of the current century, at a level of nearly xi billion.
The report also confirmed that the world'southward population is growing older due to increasing life expectancy and falling fertility levels, and that the number of countries experiencing a reduction in population size is growing. The resulting changes in the size, limerick and distribution of the earth's population take of import consequences for achieving the Sustainable Development Goals (SDGs), the globally agreed targets for improving economical prosperity and social well-being while protecting the environment.
The new population projections bespeak that 9 countries will make up more than than one-half the projected growth of the global population between now and 2050: India, Nigeria, Pakistan, the Autonomous Republic of the congo, Ethiopia, the United Republic of Tanzania, Indonesia, Egypt and the U.s. of America (in descending order of the expected increment). Around 2027, India is projected to overtake People's republic of china equally the world's about populous country.
The population of sub-Saharan Africa is projected to double by 2050 (99% increment). Regions that may experience lower rates of population growth betwixt 2022 and 2050 include Oceania excluding Australia/New Zealand (56%), Northern Africa and Western Asia (46%), Australia/New Zealand (28%), Key and Southern Asia (25%), Latin America and the Caribbean area (18%), Eastern and SouthEastern Asia (3%), and Europe and Northern America (ii%).
The global fertility rate, which fell from 3.2 births per woman in 1990 to ii.5 in 2019, is projected to decline further to two.ii in 2050. In 2019, fertility remains above 2.1 births per adult female, on average, over a lifetime in sub-Saharan Africa (4.6), Oceania excluding Australia/New Zealand (3.4), Northern Africa and Western asia (2.9), and Central and Southern Asia (two.4). (A fertility level of ii.i births per woman is needed to ensure replacement of generations and avoid population pass up over the long run in the absence of clearing.)
Mr. Liu Zhenmin, United Nations Under-Secretary-General for Economical and Social Diplomacy, said the report offers a roadmap indicating where to target activity and interventions. "Many of the fastest growing populations are in the poorest countries, where population growth brings additional challenges in the attempt to eradicate poverty, achieve greater equality, gainsay hunger and malnutrition and strengthen the coverage and quality of wellness and instruction systems to ensure that no one is left behind."
Growth of the working-age population is creating opportunities for economic growth
In most of sub-Saharan Africa, and in parts of Asia and Latin America and the Caribbean, recent reductions in fertility have caused the population at working ages (25-64 years) to grow faster than at other ages, creating an opportunity for accelerated economic growth cheers to a favourable population age distribution. To do good from this "demographic dividend", governments should invest in education and health, especially for young people, and create conditions conducive to sustained economic growth.
People in the poorest countries still live vii years less than the global boilerplate
Life expectancy at birth for the world, which increased from 64.2 years in 1990 to 72.6 years in 2019, is expected to increase further to 77.1 years in 2050. While considerable progress has been fabricated in closing the longevity differential between countries, big gaps remain. In 2019, life expectancy at birth in the least developed countries lags 7.4 years behind the global average, due largely to persistently high levels of child and maternal mortality, equally well as violence, conflict and the continuing impact of the HIV epidemic.
The globe'southward population is growing older, with the age group of 65 and over growing the fastest
By 2050, ane in 6 people in the world volition be over age 65 (16%), up from one in 11 in 2022 (nine%). Regions where the share of the population aged 65 years or over is projected to double between 2022 and 2050 include Northern Africa and Western asia, Central and Southern asia, Eastern and South-East asia, and Latin America and the Caribbean. By 2050, one in four persons living in Europe and Northern America could exist aged 65 or over. In 2018, for the first fourth dimension in history, persons aged 65 or above outnumbered children under v years of age globally. The number of persons anile fourscore years or over is projected to triple, from 143 1000000 in 2022 to 426 million in 2050.
Falling proportion of working-age population is putting pressure on social protection systems
The potential back up ratio, which compares numbers of persons at working ages to those over age 65, is falling around the world. In Japan this ratio is 1.eight, the everyman in the world. An boosted 29 countries, mostly in Europe and the Caribbean area, already accept potential back up ratios below 3. By 2050, 48 countries, generally in Europe, Northern America, and Eastern and South-Eastern Asia, are expected to have potential support ratios below two. These low values underscore the potential impact of population ageing on the labour market and economic performance, as well as the fiscal pressures that many countries volition face in the coming decades as they seek to build and maintain public systems of health intendance, pensions and social protection for older persons.
A growing number of countries are experiencing a reduction in population size
Since 2010, 27 countries or areas have experienced a reduction of one per cent or more than in the size of their populations. This drib is caused past sustained low levels of fertility. The affect of low fertility on population size is reinforced in some locations by high rates of emigration. Between 2022 and 2050, populations are projected to decrease by one per cent or more in 55 countries or areas, of which 26 may see a reduction of at least ten per cent. In Red china, for instance, the population is projected to decrease by 31.4 million, or around 2.2 per cent, between 2022 and 2050.
Migration has become a major component of population change in some countries
Between 2010 and 2020, fourteen countries or areas will see a cyberspace inflow of more than one million migrants, while ten countries volition encounter a cyberspace outflow of similar magnitude. Some of the largest migratory outflows are driven by the demand for migrant workers (Bangladesh, Nepal and the Philippines) or by violence, insecurity and armed disharmonize (Myanmar, Syrian arab republic and Venezuela). Belarus, Estonia, Frg, Hungary, Italia, Nihon, the Russian federation, Serbia and Ukraine will experience a net arrival of migrants over the decade, helping to offset population losses caused by an backlog of deaths over births.
"These data constitute a critical piece of the prove base of operations needed for monitoring global progress toward accomplishment of the Sustainable Development Goals by 2030", says John Wilmoth, Director of the Population Partitioning of the Un Department of Economic and Social Affairs. "More than one third of the indicators approved for use as office of the global monitoring of the SDGs rely on information from Earth Population Prospects," he added.
About the report
The World Population Prospects 2019: Highlights presents the main results of the 26th circular of the United nations's global population estimates and projections. The written report includes updated population estimates from 1950 to the present for 235 countries or areas, based on detailed analyses of all available information about the relevant historical demographic trends. The latest cess uses the results of 1,690 national population censuses conducted between 1950 and 2018, as well equally information from vital registration systems and from 2,700 nationally representative sample surveys. The 2022 revision also presents population projections from the nowadays until 2100, depicting a range of possible or plausible outcomes at the global, regional and country levels.
Source: https://www.un.org/development/desa/en/news/population/world-population-prospects-2019.html
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