Nigeria has the largest population in Africa. As of 2024, the country counted over 232.6 million individuals, whereas Ethiopia, which ranked second, has around 132 million inhabitants. Egypt registered the largest population in North Africa, reaching nearly 116 million people. In terms of inhabitants per square kilometer, Nigeria only ranks seventh, while Mauritius has the highest population density on the whole African continent. The fastest-growing world region Africa is the second most populous continent in the world, after Asia. Nevertheless, Africa records the highest growth rate worldwide, with figures rising by over two percent every year. In some countries, such as Niger, the Democratic Republic of Congo, and Chad, the population increase peaks at over three percent. With so many births, Africa is also the youngest continent in the world. However, this coincides with a low life expectancy. African cities on the rise The last decades have seen high urbanization rates in Asia, mainly in China and India. However, African cities are currently growing at larger rates. Indeed, most of the fastest-growing cities in the world are located in Sub-Saharan Africa. Gwagwalada, in Nigeria, and Kabinda, in the Democratic Republic of the Congo, ranked first worldwide. By 2035, instead, Africa's fastest-growing cities are forecast to be Bujumbura, in Burundi, and Zinder, Nigeria.

There are approximately 8.16 billion people living in the world today, a figure that shows a dramatic increase since the beginning of the Common Era. Since the 1970s, the global population has also more than doubled in size. It is estimated that the world's population will reach and surpass 10 billion people by 2060 and plateau at around 10.3 billion in the 2080s, before it then begins to fall. Asia When it comes to number of inhabitants per continent, Asia is the most populous continent in the world by a significant margin, with roughly 60 percent of the world's population living there. Similar to other global regions, a quarter of inhabitants in Asia are under 15 years of age. The most populous nations in the world are India and China respectively; each inhabit more than three times the amount of people than the third-ranked United States. 10 of the 20 most populous countries in the world are found in Asia. Africa Interestingly, the top 20 countries with highest population growth rate are mainly countries in Africa. This is due to the present stage of Sub-Saharan Africa's demographic transition, where mortality rates are falling significantly, although fertility rates are yet to drop and match this. As much of Asia is nearing the end of its demographic transition, population growth is predicted to be much slower in this century than in the previous; in contrast, Africa's population is expected to reach almost four billion by the year 2100. Unlike demographic transitions in other continents, Africa's population development is being influenced by climate change on a scale unseen by most other global regions. Rising temperatures are exacerbating challenges such as poor sanitation, lack of infrastructure, and political instability, which have historically hindered societal progress. It remains to be seen how Africa and the world at large adapts to this crisis as it continues to cause drought, desertification, natural disasters, and climate migration across the region.

In the middle of 2023, about 60 percent of the global population was living in Asia.The total world population amounted to 8.1 billion people on the planet. In other words 4.7 billion people were living in Asia as of 2023. Global populationDue to medical advances, better living conditions and the increase of agricultural productivity, the world population increased rapidly over the past century, and is expected to continue to grow. After reaching eight billion in 2023, the global population is estimated to pass 10 billion by 2060. Africa expected to drive population increase Most of the future population increase is expected to happen in Africa. The countries with the highest population growth rate in 2024 were mostly African countries. While around 1.47 billion people live on the continent as of 2024, this is forecast to grow to 3.9 billion by 2100. This is underlined by the fact that most of the countries wit the highest population growth rate are found in Africa. The growing population, in combination with climate change, puts increasing pressure on the world's resources.

In 2022, India overtook China as the world's most populous country and now has almost 1.46 billion people. China now has the second-largest population in the world, still with just over 1.4 billion inhabitants, however, its population went into decline in 2023. Global population As of 2025, the world's population stands at almost 8.2 billion people and is expected to reach around 10.3 billion people in the 2080s, when it will then go into decline. Due to improved healthcare, sanitation, and general living conditions, the global population continues to increase; mortality rates (particularly among infants and children) are decreasing and the median age of the world population has steadily increased for decades. As for the average life expectancy in industrial and developing countries, the gap has narrowed significantly since the mid-20th century. Asia is the most populous continent on Earth; 11 of the 20 largest countries are located there. It leads the ranking of the global population by continent by far, reporting four times as many inhabitants as Africa. The Demographic Transition The population explosion over the past two centuries is part of a phenomenon known as the demographic transition. Simply put, this transition results from a drastic reduction in mortality, which then leads to a reduction in fertility, and increase in life expectancy; this interim period where death rates are low and birth rates are high is where this population explosion occurs, and population growth can remain high as the population ages. In today's most-developed countries, the transition generally began with industrialization in the 1800s, and growth has now stabilized as birth and mortality rates have re-balanced. Across less-developed countries, the stage of this transition varies; for example, China is at a later stage than India, which accounts for the change in which country is more populous - understanding the demographic transition can help understand the reason why China's population is now going into decline. The least-developed region is Sub-Saharan Africa, where fertility rates remain close to pre-industrial levels in some countries. As these countries transition, they will undergo significant rates of population growth

Whereas the population is expected to decrease somewhat until 2100 in Asia, Europe, and South America, it is predicted to grow significantly in Africa. While there were 1.5 billion inhabitants on the continent at the beginning of 2024, the number of inhabitants is expected to reach 3.8 billion by 2100. In total, the global population is expected to reach nearly 10.4 billion by 2100. Worldwide population In the United States, the total population is expected to steadily increase over the next couple of years. In 2024, Asia held over half of the global population and is expected to have the highest number of people living in urban areas in 2050. Asia is home to the two most populous countries, India and China, both with a population of over one billion people. However, the small country of Monaco had the highest population density worldwide in 2021. Effects of overpopulation Alongside the growing worldwide population, there are negative effects of overpopulation. The increasing population puts a higher pressure on existing resources and contributes to pollution. As the population grows, the demand for food grows, which requires more water, which in turn takes away from the freshwater available. Concurrently, food needs to be transported through different mechanisms, which contributes to air pollution. Not every resource is renewable, meaning the world is using up limited resources that will eventually run out. Furthermore, more species will become extinct which harms the ecosystem and food chain. Overpopulation was considered to be one of the most important environmental issues worldwide in 2020.

According to the 2010 UN Global Demographic Outlook, the world’s population reached 7.1 billion as of 1 July 2012. Asia accounted for the majority of the world’s population (just over 60 % in 2012), with 4.25 billion inhabitants, while Africa was the second most populous continent, with 1.07 billion inhabitants, or 15.2 % of the world’s total. By comparison, the EU had 504 million inhabitants in 2012, just over 7 % of the world’s population. In 2012, the world’s most populous countries were China (19.2 % of the world’s population) and India (17.8 %), followed by the United States (4.5 %), Indonesia (3.5 %) and Brazil (2.8 %).

The table contains the demographic projections of the main European countries from 2020 to 2080. The Eurostat table has been modified by economy-policy in order to obtain better visibility. Indeed, the number of inhabitants is expressed in “million inhabitants” and not in unit data.
In addition, demographic projections for China, India, Brazil and Russia were added for the years 2030, 2040 and 2050.

These are the results of a structure analysis performed by FRAPPE, with default settings and K=8, on a combined dataset consisting in 3146 autosomal SNPs for 4025 individuals from 167 populations.Each line corresponds to an individual.The first column is the population identifier, the second column is the individual identifier, the last columns are the proportions of the different ancestry classes determined by FRAPP for the individual.The analyzed data consists in genome-wide SNPs that were obtained from 5 different sources, keeping the SNPs common to all 5 sources.

Use this application to view the pattern of concentrations of people by race and Hispanic or Latino ethnicity. Data are provided at the U.S. Census block group level, one of the smallest Census geographies, to provide a detailed picture of these patterns. The data is sourced from the U.S Census Bureau, 2020 Census Redistricting Data (Public Law 94-171) Summary File. Definitions: Definitions of the Census Bureau’s categories are provided below. This interactive map shows patterns for all categories except American Indian or Alaska Native and Native Hawaiian or Other Pacific Islander. The total population countywide for these two categories is small (1,582 and 263 respectively). The Census Bureau uses the following race categories:Population by RaceWhite – A person having origins in any of the original peoples of Europe, the Middle East, or North Africa.Black or African American – A person having origins in any of the Black racial groups of Africa.American Indian or Alaska Native – A person having origins in any of the original peoples of North and South America (including Central America) and who maintains tribal affiliation or community attachment.Asian – A person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam.Native Hawaiian or Other Pacific Islander – A person having origins in any of the original peoples of Hawaii, Guam, Samoa, or other Pacific Islands.Some Other Race - this category is chosen by people who do not identify with any of the categories listed above. People can identify with more than one race. These people are included in the Two or More Races Hispanic or Latino PopulationThe Hispanic/Latino population is an ethnic group. Hispanic/Latino people may be of any race.Other layers provided in this tool included the Loudoun County Census block groups, towns and Dulles airport, and the Loudoun County 2021 aerial imagery.

The Country-Level Population and Downscaled Projections Based on Special Report on Emissions Scenarios (SRES) B2 Scenario, 1990-2100, were based on the UN 1998 Medium Long Range Projection for the years 1995 to 2100. The official version projects population for 8 regions of the world including Africa, Asia (minus India and China), India, China, Europe, Latin America, Northern America, and Oceania. This data set is produced and distributed by the Columbia University Center for International Earth Science Information Network (CIESIN).

These are the results of a structure analysis performed by FRAPPE, with default settings and K=5, on a combined dataset consisting in 3146 autosomal SNPs for 4025 individuals from 167 populations.Each line corresponds to an individual.The first column is the population identifier, the second column is the individual identifier, the last columns are the proportions of the different ancestry classes determined by FRAPP for the individual.The analyzed data consists in genome-wide SNPs that were obtained from 5 different sources, keeping the SNPs common to all 5 sources.

As of February 2025, India was the country with the largest offline population worldwide. The South Asian country had over 651 million people without internet connection. China ranked second, with around 311.9 million people not connected to the internet. Despite these large shares of the disconnected population in these countries, China and India ranked first and second, respectively, as countries with the highest number of internet users worldwide. Internet access in Africa In 2023, Africa lagged behind other global regions regarding internet penetration rate, as only 37 percent of the continent’s population accessed the web. In contrast, around 91 percent of Europe’s population were internet users. This is heavily influenced by the infrastructure development in the region. However, some improvements are forecasted, as by 2028, the internet penetration rate in Africa will be at an estimated 48.15 percent. Global internet access challenges: disruptions and restrictions Government internet shutdowns around the world are another challenge for internet access. Between 2015 and the first half of 2023, 172 local internet connection disruptions occurred due to protests globally. Moreover, according to a 2023report on internet freedom, almost four out of ten global internet users were deprived of essential freedoms on online platforms. In 2023, 76 new restrictions on internet usage were implemented worldwide. Asia led in imposing these restrictions, accounting for approximately 55 cases across various countries in the region.

These are the results of a structure analysis performed by FRAPPE, with default settings and K=3, on a combined dataset consisting in 3146 autosomal SNPs for 4025 individuals from 167 populations.Each line corresponds to an individual.The first column is the population identifier, the second column is the individual identifier, the last columns are the proportions of the different ancestry classes determined by FRAPP for the individual.The analyzed data consists in genome-wide SNPs that were obtained from 5 different sources, keeping the SNPs common to all 5 sources.

These are the results of a structure analysis performed by FRAPPE, with default settings and K=4, on a combined dataset consisting in 3146 autosomal SNPs for 4025 individuals from 167 populations.Each line corresponds to an individual.The first column is the population identifier, the second column is the individual identifier, the last columns are the proportions of the different ancestry classes determined by FRAPP for the individual.The analyzed data consists in genome-wide SNPs that were obtained from 5 different sources, keeping the SNPs common to all 5 sources.

Caffeine Citrate data across five low- and middle-income countries

https://doi.org/10.5061/dryad.ksn02v7c4

This dataset is responses from stakeholders and providers describing the demand, policies, and supply factors affecting the availability and clinical use of Caffeine Citrate (CC) across Nigeria, Ethiopia, South Africa, Kenya and five States in India (where permission was given to share with the public). The dataset covers responses on the presence or absence of caffeine citrate in the Essential Medicines List (EML) and treatment guidelines, apnea of prematurity treatment protocols and practices, different brands of drugs registered in countries, procurement information and barriers limiting access. The data gives insights into status of caffeine, the treatment practices and barriers to access in each country. Apnea of prematurity (AOP) is a common complication among preterm infants (< 37 weeks' gestation), globally. However, access to ...

From now until 2100, India and China will remain the most populous countries in the world, however China's population decline has already started, and it is on course to fall by around 50 percent in the 2090s; while India's population decline is projected to begin in the 2060s. Of the 10 most populous countries in the world in 2100, five will be located in Asia, four in Africa, as well as the United States. Rapid growth in Africa Rapid population growth across Africa will see the continent's population grow from around 1.5 billion people in 2024 to 3.8 billion in 2100. Additionally, unlike China or India, population growth in many of these countries is not expected to go into decline, and instead is expected to continue well into the 2100s. Previous estimates had projected these countries' populations would be much higher by 2100 (the 2019 report estimated Nigeria's population would exceed 650 million), yet the increased threat of the climate crisis and persistent instability is delaying demographic development and extending population growth. The U.S. as an outlier Compared to the nine other largest populations in 2100, the United States stands out as it is more demographically advanced, politically stable, and economically stronger. However, while most other so-called "advanced countries" are projected to see their population decline drastically in the coming decades, the U.S. population is projected to continue growing into the 2100s. This will largely be driven by high rates of immigration into the U.S., which will drive growth despite fertility rates being around 1.6 births per woman (below the replacement level of 2.1 births per woman), and the slowing rate of life expectancy. Current projections estimate the U.S. will have a net migration rate over 1.2 million people per year for the remainder of the century.

The Research on Early Life and Aging Trends and Effects (RELATE) study compiles cross-national data that contain information that can be used to examine the effects of early life conditions on older adult health conditions, including heart disease, diabetes, obesity, functionality, mortality, and self-reported health. The complete cross sectional/longitudinal dataset (n=147,278) was compiled from major studies of older adults or households across the world that in most instances are representative of the older adult population either nationally, in major urban centers, or in provinces. It includes over 180 variables with information on demographic and geographic variables along with information about early life conditions and life course events for older adults in low, middle and high income countries. Selected variables were harmonized to facilitate cross national comparisons. In this first public release of the RELATE data, a subset of the data (n=88,273) is being released. The subset includes harmonized data of older adults from the following regions of the world: Africa (Ghana and South Africa), Asia (China, India), Latin America (Costa Rica, major cities in Latin America), and the United States (Puerto Rico, Wisconsin). This first release of the data collection is composed of 19 downloadable parts: Part 1 includes the harmonized cross-national RELATE dataset, which harmonizes data from parts 2 through 19. Specifically, parts 2 through 19 include data from Costa Rica (Part 2), Puerto Rico (Part 3), the United States (Wisconsin) (Part 4), Argentina (Part 5), Barbados (Part 6), Brazil (Part 7), Chile (Part 8), Cuba (Part 9), Mexico (Parts 10 and 15), Uruguay (Part 11), China (Parts 12, 18, and 19), Ghana (Part 13), India (Part 14), Russia (Part 16), and South Africa (Part 17). The Health and Retirement Study (HRS) was also used in the compilation of the larger RELATE data set (HRS) (N=12,527), and these data are now available for public release on the HRS data products page. To access the HRS data that are part of the RELATE data set, please see the collection notes below.

These are the results of a structure analysis performed by FRAPPE, with default settings and K=11, on a combined dataset consisting in 3146 autosomal SNPs for 4025 individuals from 167 populations.Each line corresponds to an individual.The first column is the population identifier, the second column is the individual identifier, the last columns are the proportions of the different ancestry classes determined by FRAPP for the individual.The analyzed data consists in genome-wide SNPs that were obtained from 5 different sources, keeping the SNPs common to all 5 sources.

The earliest point where scientists can make reasonable estimates for the population of global regions is around 10,000 years before the Common Era (or 12,000 years ago). Estimates suggest that Asia has consistently been the most populated continent, and the least populated continent has generally been Oceania (although it was more heavily populated than areas such as North America in very early years). Population growth was very slow, but an increase can be observed between most of the given time periods. There were, however, dips in population due to pandemics, the most notable of these being the impact of plague in Eurasia in the 14th century, and the impact of European contact with the indigenous populations of the Americas after 1492, where it took almost four centuries for the population of Latin America to return to its pre-1500 level. The world's population first reached one billion people in 1803, which also coincided with a spike in population growth, due to the onset of the demographic transition. This wave of growth first spread across the most industrially developed countries in the 19th century, and the correlation between demographic development and industrial or economic maturity continued until today, with Africa being the final major region to begin its transition in the late-1900s.

These are the results of a structure analysis performed by FRAPPE, with default settings and K=7, on a combined dataset consisting in 3146 autosomal SNPs for 4025 individuals from 167 populations.Each line corresponds to an individual.The first column is the population identifier, the second column is the individual identifier, the last columns are the proportions of the different ancestry classes determined by FRAPP for the individual.The analyzed data consists in genome-wide SNPs that were obtained from 5 different sources, keeping the SNPs common to all 5 sources.

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Bivalvia Market 2024-2028

The Bivalvia market size is forecast to increase by USD 4.65 billion, at a CAGR of 3.36% between 2023 and 2028.

The consumption of seafood is deeply ingrained in the food culture of numerous Asian countries, fostering a rising consumer preference for seafood. Bivalvia variants like mussels, oysters, and scallops are staples in countries such as China, Japan, and South Korea, influencing diverse Asian cuisines. This culinary trend, seen in popular dishes like miso soup and pajeon, is boosting the demand for Bivalvia in the Asia-Pacific (APAC) region. For instance, Camanchaca SA is a company that offers Bivalvia such as mussel meat, whole mussel, entire abalone, abalone meat, and others. Furthermore, factors such as a growing population and increased awareness of seafood benefits are expected to drive the Bivalvia market growth in APAC, during the forecast period.

Bivalvia Market: Overview

The Bivalvia Market shows an accelerated CAGR during the forecast period.

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Bivalvia Market Driver

One of the key factors driving the Bivalvia market growth is the increasing demand for nutritious food. The demand for nutritious and healthy food, including fish and seafood, is increasing rapidly across the globe. In addition, there is a constant increase in the global aging population, along with the overall global population. Furthermore, the aging population is more prone to lifestyle and stress-related diseases.

Moreover, senior citizens are more prone to digestive disorders because of their low immunity levels. Therefore, Bivalvia and other seafood are preferred as they are easy to digest compared to meat and poultry (seafood has less connective tissue). Furthermore, the senior citizen segment constitutes a significant portion of the population in the developed world, and they prefer Bivalvia to other meat products for including protein in their daily diet. Hence, such factors are driving the market growth during the forecast period.

Bivalvia Market Trends

A key factor shaping the Bivalvia market growth is the growth of bivalve mariculture worldwide. Mariculture or marine aquaculture refers to the cultivation of fish or other marine life for food in seawater. In addition, with increasing extractive fisheries and exploitation, the yield of Bivalvia has declined over the years. However, the rising demand and decreasing supply have resulted in increased activity in bivalve mariculture to increase the production of Bivalvia to meet the demand in the global seafood market.

Moreover, with countries focusing more on environmental sustainability, Bivalvia mariculture is expected to show further growth as countries are increasingly investing in marine aquaculture. For instance, the Minister for Agriculture Food and the Marine announced an award of Euros 1,574,611 to 11 aquaculture enterprises and four third-level research institutions in eight different countries under the European Maritime and Fisheries Fund (EMFF) Operational Program for the seafood sector. Hence, such factors are driving the market growth during the forecast period.

Bivalvia Market Challenge

Stringent regulations and high tariffs on seafood imports are one of the key challenges hindering the Bivalvia market growth. Several companies in the global Bivalvia market are required to comply with stringent rules and regulations imposed by various authorities. In addition, these regulations pertain to permits and import-export, access to new farming sites or renewal of existing aquaculture authorizations, regulations for new players, residual management issues, and labeling on products.

For instance, for importing fish, fishery products, and shellfish to the European Union (EU), they must come from EU-approved fishery product facilities or harvests in approved bivalve mollusk production areas. In addition, these products must be accompanied by appropriate health certifications confirming such imports meet hygiene, public health, and animal health requirements as per the European Commission's import rules on food hygiene. Hence, suhc factors are hindering the market growth during the forecast period.

Bivalvia Market Segmentation by Source

The growing preference for natural and organic products will fuel the wild harvest segment which will increase the market growth. The wild harvest segment can be referred to as the process of gathering or collecting natural resources, seafood, or products directly from their natural or wild environments. In addition, wild harvest seafood is often considered to be natural or organic as it is sourced from the wild and may have a distinct taste or quality compared with farmed or cultivated counterparts. Moreover, the increasing awareness among consumers regarding the nutritional benefits of wild-caught or wild-harvested products drives the growth of the wild