World population projection

World population

Consequently, the population of Nigeria is projected to surpass that of the United States by aboutat which point it would become the third largest country in the world. We head back to the eastern seaboard for our next two U. The Delhi area was home to an estimated 27 million people in and is only getting bigger.

Replacement-level fertility is higher in countries with elevated mortality rates. In the near future, however, families in wealthier countries may decide to prolong or reconsider having children due to the economic recession.

World population

Not only that, but the area remains a top destination for immigrants. The study also factored in fertility, mortality, and educational attainment, along with current city size, country population growth, and urbanization rates.

Globally the number of persons aged 60 or above is expected to more than double by and more than triple by The population projection from the University of Toronto shows well over 7 million people.

Download key charts and figures from our Social Media Toolkit. Conrad Hackett was the lead researcher and primary author of this report.

Projections of population growth

All countries are projected to have reached replacement fertility by However, other studies by the Pew Research Center show that Catholics have been declining and Protestants have been rising as a percentage of the population in some Latin American countries.

Former intern Joseph Naylor helped design maps, and David McClendon, another former intern, helped research global patterns of religious switching.

Over the next four decades, Christians will remain the largest religious group, but Islam will grow faster than any other major religion. In Hindu-majority India, religious affiliation remains nearly universal despite rapid social and economic change.

Progress in reducing under-five mortality, one of the MDG targets, has been very significant and wide-reaching in recent years. The six-year average gain in life expectancy among the poorest countries, from 56 years in to 62 years inis roughly double the increase recorded for the rest of the world.

In recent years, fertility has declined in virtually all areas of the world, even in Africa where fertility levels remain the highest of any major area. World population projected to reach 9.

We head back to the eastern seaboard for our next two U. The United Nations expects nearly 8 billion people on Earth by in its low population estimate, according to the study [PDF].

Estimates from other sources on the size of additional groups in this category can be found in the sidebar in Chapter 2. In addition, some countries may choose to incentivize older adults to remain in the work force longer.

In total, these three regions are home to 1. For example, many countries in the world are experiencing—and will continue to experience—steady increases in the number of older adults, both in absolute terms and as a percentage of the total population.

As previously mentioned, Hindus are projected to roughly keep pace with global population growth. After reaching this maximum, it would decline slightly and then resume a slow increase, reaching a level of 8.

For alternative growth scenarios involving either switching in additional countries or no switching at all, see Chapter 1. India has yet another of the cities poised to be the most populated by All countries are projected to have reached replacement fertility by Bythe report assumed life expectancy to be from 66 to 97 years, and by from 87 to years, depending on the country.

The university study predicts 5. For one, the metropolitan area is huge. rows · Projections of population growth established in predict that the human population is likely to keep growing untilreaching an estimated billion inbillion in and billion bywhile the 7. The current world population of billion is expected to reach billion inbillion in and billion inaccording to a new United With roughly 83 million people being added to the world's population every year, the upward trend in population size is expected to continue, even assuming that fertility levels will continue to decline.

World population estimates from tobased on "high", "medium" and "low" United Nations projections in and UN historical estimates for pre data Population growth graph generated with data supplied by World Bank, via Google World population percentage by country In demographics, the world population is the total number of humans currently living, and was.

World population projected to reach billion by 29 JulyNew York The current world population of billion is expected to reach billion bybillion in and billion inaccording to a new UN DESA report, “World Population Prospects: The Revision”, launched today.

Apr 02,  · In addition to making projections at the global level, this report projects religious change in countries and territories with at leastpeople as. I.6 The different variants of population projections by the UN. Shown below is the increase of the world population since combined with the latest projections of the UN Population Division.

Projections of population growth

The UN publishes several variants of their population projections: The Medium Variant is the projection that the UN researchers see as the most likely scenario.

World population projection
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World population - Wikipedia