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Projections Of Population Growth
Population projections are attempts to show how the human population statistics might change in the future. These projections are an important input to forecasts of the population's impact on this planet and humanity's future well-being. Models of population growth take trends in human development, and apply projections into the future. These models use trend-based-assumptions about how populations will respond to economic, social and technological forces to understand how they will affect fertility and mortality, and thus population growth. The 2019 projections from the United Nations Population Division show that annual world population growth peaked at 2.1% in 1968, has since dropped to 1.1%, and could drop even further to 0.1% by 2100, which would be a growth rate not seen since pre-industrial revolution days. Based on this, the UN Population Division projects the world population, which is 7.8 billion , to level out around 2100 at 10.9 billion (the median line), assuming a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Population Growth, 1700-2100, 2019 Revision
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of many parts. In '' scientific cosmology'' the world or universe is commonly defined as " e totality of all space and time; all that is, has been, and will be". '' Theories of modality'', on the other hand, talk of possible worlds as complete and consistent ways how things could have been. ''Phenomenology'', starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In ''philosophy of mind'', the world is commonly contrasted with the mind as that which is represented by the mind. ''T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demographics Of Africa
The population of Africa has grown rapidly over the past century and consequently shows a large youth bulge, further reinforced by a low life expectancy of below 50 years in some African countries. Total population as of 2020 is estimated at more than 1.3 billion, with a growth rate of more than 2.5% p.a. The total fertility rate (births per woman) for Sub-Saharan Africa is 4.7 as of 2018, the highest in the world according to the World Bank. The most populous African country is Nigeria with over 206 million inhabitants as of 2020 and a growth rate of 2.6% p.a. Population Genetics History Alternative Estimates of African Population, 0–1998 AD (in thousands) Source: Maddison and others. (University of Groningen). Shares of Africa and World Population, 0–2018 AD (% of world total) Source: Maddison and others (University of Groningen) and others. Vital Statistics 1950–2021AD Registration of vital events in most of Africa is incomplete. The website Our World i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pop Continents 2000 2050
Pop or POP may refer to: Arts, entertainment, and media Music * Pop music, a musical genre Artists * POP, a Japanese idol group now known as Gang Parade * Pop!, a UK pop group * Pop! featuring Angie Hart, an Australian band Albums * ''Pop'' (Gas album) * ''Pop'' (Joachim Witt album) * ''Pop'' (Mao Abe album) * ''Pop'' (Same Difference album) * ''Pop'' (Tones on Tail album) * ''Pop'' (U2 album) * ''Pop'', an album by Topi Sorsakoski and Agents * '' P.O.P'', The Mad Capsule Markets album * ''Pop! The First 20 Hits'', an album by English duo Erasure Songs * "Pop" (song), by 'N Sync * "Pop", a song by A.R. Kane * "Pop", a song by Ari Lennox from ''Shea Butter Baby'' * "Pop", a song by La Oreja de Van Gogh from ''El viaje de Copperpot'' * " Pop!", a song by Nayeon from '' Im Nayeon'' Periodicals * ''Pop'' (fashion magazine), a British publication * ''Pop Magazine'', a sports magazine Television * Pop (American TV channel), formerly TVGN * Pop (British and Irish TV channel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Population (UN)
In demographics, the world population is the total number of humans currently living. It was estimated by the United Nations to have exceeded 8 billion in November 2022. It took over 200,000 years of human prehistory and history for the human population to reach one billion and only 219 years more to reach 8 billion. The human population experienced continuous growth following the Great Famine of 1315–1317 and the end of the Black Death in 1350, when it was nearly 370,000,000. The highest global population growth rates, with increases of over 1.8% per year, occurred between 1955 and 1975, peaking at 2.1% between 1965 and 1970. The growth rate declined to 1.1% between 2015 and 2020 and is projected to decline further in the 21st century. The global population is still increasing, but there is significant uncertainty about its long-term trajectory due to changing fertility and mortality rates. The UN Department of Economics and Social Affairs projects between 9 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rate Of Natural Increase
In Demography, the rate of natural increase (RNI), also known as natural population change, is defined as the birth rate minus the death rate of a particular population, over a particular time period. It is typically expressed either as a number per 1,000 individuals in the population or as a percentage. RNI can be either positive or negative. It contrasts to total population change by ignoring net migration. This RNI gives demographers an insight into how a region's population is evolving, and these analyses can inform government attempts to shape RNI. Examples Suppose a population of 5,000 individuals experiences 1,150 live births and 900 deaths over the course of one year. To show the RNI over that year as a percentage, the equation would be (1,150 – 900) ÷ 5,000 = 0.05 = +5% To show the RNI as a number per 1,000 individuals in the population, the equation would be (1,150 – 900) ÷ (5,000/1,000) = 250 ÷ 5 = +50 It can also be sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Former Soviet Union
The post-Soviet states, also known as the former Soviet Union (FSU), the former Soviet Republics and in Russia as the near abroad (russian: links=no, ближнее зарубежье, blizhneye zarubezhye), are the 15 sovereign states that were union republics of the Soviet Union, which emerged and re-emerged from the Soviet Union following its dissolution in 1991. Russia is the primary ''de facto'' internationally recognized successor state to the Soviet Union after the Cold War; while Ukraine has, by law, proclaimed that it is a state-successor of both the Ukrainian SSR and the Soviet Union which remained under dispute over formerly Soviet-owned properties. The three Baltic states – Estonia, Latvia, and Lithuania – were the first to declare their independence from the USSR, between March and May 1990, claiming continuity from the original states that existed prior to their annexation by the Soviet Union in 1940. The remaining 12 republics all subsequently seceded, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Child Mortality
Child mortality is the mortality of children under the age of five. The child mortality rate, also under-five mortality rate, refers to the probability of dying between birth and exactly five years of age expressed per 1,000 live births. It encompasses neonatal mortality and infant mortality (the probability of death in the first year of life). Reduction of child mortality is reflected in several of the United Nations' Sustainable Development Goals. Target 3.2 is "by 2030, end preventable deaths of newborns and children under 5 years of age, with all countries aiming to reduce … under‑5 mortality to at least as low as 25 per 1,000 live births." Child mortality rates have decreased in the last 40 years. While in 1990, 12.6 million children under age five died, in 2016 that number fell to 5.6 million children, and then in 2020, the global number fell again to 5 million. Rapid progress has resulted in a significant decline in preventable child deaths since 1990, with the g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Life Expectancy
Life expectancy is a statistical measure of the average time an organism is expected to live, based on the year of its birth, current age, and other demographic factors like sex. The most commonly used measure is life expectancy at birth (LEB), which can be defined in two ways. ''Cohort'' LEB is the mean length of life of a birth cohort (all individuals born in a given year) and can be computed only for cohorts born so long ago that all their members have died. ''Period'' LEB is the mean length of life of a hypothetical cohort assumed to be exposed, from birth through death, to the mortality rates observed at a given year. National LEB figures reported by national agencies and international organizations for human populations are estimates of ''period'' LEB. In the Bronze Age and the Iron Age, human LEB was 26 years; in 2010, world LEB was 67.2 years. In recent years, LEB in Eswatini (formerly Swaziland) is 49, while LEB in Japan is 83. The combination of high infant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mortality Rate
Mortality rate, or death rate, is a measure of the number of deaths (in general, or due to a specific cause) in a particular population, scaled to the size of that population, per unit of time. Mortality rate is typically expressed in units of deaths per 1,000 individuals per year; thus, a mortality rate of 9.5 (out of 1,000) in a population of 1,000 would mean 9.5 deaths per year in that entire population, or 0.95% out of the total. It is distinct from " morbidity", which is either the prevalence or incidence of a disease, and also from the incidence rate (the number of newly appearing cases of the disease per unit of time). An important specific mortality rate measure is the crude death rate, which looks at mortality from all causes in a given time interval for a given population. , for instance, the CIA estimates that the crude death rate globally will be 7.7 deaths per 1,000 people in a population per year. In a generic form, mortality rates can be seen as calculated using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longevity
The word " longevity" is sometimes used as a synonym for " life expectancy" in demography. However, the term ''longevity'' is sometimes meant to refer only to especially long-lived members of a population, whereas ''life expectancy'' is always defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts). Longevity is best thought of as a term for general audiences meaning 'typical length of life' and specific statistical definitions should be clarified when necessary. Reflections on longevity have usually gone beyond acknowledging the brevity of human life and have included thinking about methods to extend life. Longevity has been a topic not only for the scientific community but also for writers of travel, science fiction, and utopian novels. In fact the legendary fountain of youth appeared in the work of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Fertility Rate
The total fertility rate (TFR) of a population is the average number of children that would be born to a woman over her lifetime if: # she were to experience the exact current age-specific fertility rates (ASFRs) through her lifetime # she were to live from birth until the end of her reproductive life. It is obtained by summing the single-year age-specific rates at a given time. As of 2021, the total fertility rate varied from 0.81 in South Korea to 6.91 in Niger. Fertility tends to be correlated with the level of economic development. Historically, developed countries usually have a significantly lower fertility rate, generally correlated with greater wealth, education, urbanization, and other factors. Conversely, in undeveloped countries, fertility rates tend to be higher. Families desire children for their labor and as caregivers for their parents in old age. Fertility rates are also higher due to the lack of access to contraceptives, stricter adherence to traditional religi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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