Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on the day's biggest business stories

Subscribe to Axios Closer for insights into the day’s business news and trends and why they matter

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios Pro Rata

Dive into the world of dealmakers across VC, PE and M&A with Axios Pro Rata. Delivered daily to your inbox by Dan Primack and Kia Kokalitcheva.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Nashville news?

Get a daily digest of the most important stories affecting your hometown with the Axios Nashville newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Columbus news?

Get a daily digest of the most important stories affecting your hometown with the Axios Columbus newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Dallas news?

Get a daily digest of the most important stories affecting your hometown with the Axios Dallas newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Austin news?

Get a daily digest of the most important stories affecting your hometown with the Axios Austin newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Atlanta news?

Get a daily digest of the most important stories affecting your hometown with the Axios Atlanta newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Philadelphia news?

Get a daily digest of the most important stories affecting your hometown with the Axios Philadelphia newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Chicago news?

Get a daily digest of the most important stories affecting your hometown with the Axios Chicago newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios NW Arkansas

Stay up-to-date on the most important and interesting stories affecting NW Arkansas, authored by local reporters

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top DC news?

Get a daily digest of the most important stories affecting your hometown with the Axios DC newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!
Expand chart
Data: United Nations World Population Prospects 2017; Chart: Harry Stevens/Axios

Since the dawn of humans, we have faced one inexorable challenge — how to support the rise and — in the last half century or so — explosion of the population. But, in a momentous reversal, that age-old challenge is changing: the population of most countries is shrinking — for many of them at an alarming pace — and at the same time aging.

Much of the world teeters on the cusp of a childless, elderly future.

Why it matters: A growing, youthful population is typically a bedrock sign of vitality. In the industrial age, that's included a growing economy, greater opportunity, advancing technology, and a more comfortable retirement for older people. The turnaround on all continents except Africa means supporting an increasing number of retired people with many fewer workers, and confronts the world with two primary solutions, both of them controversial.

  • Loosen up currently fraught politics around migration from still-growing countries.
  • Or populate our countries with robot helpers.

Whichever the case, almost no one seems prepared. People are going to have to work longer, experts say. And the U.S. requires "major reforms" in its programs for the elderly, says Richard Cincotta, director of the Global Political Demography Program at the Stimson Center, and formerly a lead demographer for the U.S. intelligence community. But the government "seems to be nowhere near making the social security reforms that are needed."

  • Largely because of Africa, the global population is forecast to continue rising through the century past 11 billion. But according to the United Nations, there is a 23% chance the world population will stabilize or fall by then in a phenomenon that some demographers call “peak human.”

Digging underneath the numbers:

  • By 2100, the population of the world's poorest countries will more than triple, from 954 million in 2015 to 3.2 billion.
  • Minus immigration, the populations of the U.S., Japan and all of Europe are shrinking. By 2050, 48 countries or areas will have fewer people. Several will see a 15% decline, including Japan, the Balkans and the Baltics, and some much more.
  • In 2016, the fertility rate in the United States was the lowest it has ever been, according to the Centers for Disease Control. It was 1,765 births per 1,000 women of child-bearing age, below the replacement rate of 2,100.

At the same time, there will be more old people: forecasts include a spike in the number of people 80 and over.

  • Global life expectancy will rise from about 70 in 2015 to 83 in 2100, according to UN figures.
  • Except Africa, by 2050 about a quarter of the world population will be 60 or older. At about 900 million now, their numbers will rise to about 3.2 billion in 21oo. By 2080, those 65 or older will be 29.1% of the global population — and 12.7% will be 80 or over, Eurostat said.

The most worrying figure: The world will not have sufficient working-age people to support the elderly. Currently, North America has just under four workers per retired person. Seven European countries have three, and Japan has just a bit more than two.

  • By 2050, seven Asian countries, 24 European and four Latin American will fall below two workers per retired person, the UN says.
  • This means “a rising fiscal burden and slower economic growth than if the population was not aging,” says Richard Jackson of the Global Aging Institute.

This item originally appeared in our demographics Deep Dive (7/21/18)

Go deeper

WHO warns against travel bans on southern African countries

Matshidiso Moeti, World Health Organization regional director for Africa. Photo: Sylvain Gaboury/Patrick McMullan via Getty Images

The World Health Organization called on countries Sunday to not impose travel bans on southern African nations amid concerns over the new COVID-19 Omicron variant.

Why it matters: The U.S. and countries in Europe and the Asia-Pacific announced travel restrictions in response to Omicron, which was first detected in South Africa. It's since spread to several European countries, Canada, Israel, Australia and Hong Kong. The WHO noted in a statement that only two southern African nations have detected the new variant.

Updated 3 hours ago - Health

First North American Omicron cases identified in Canada

COVID-19 testing personnel at Toronto Pearson International Airport in September. Photo: Steve Russell/Toronto Star via Getty Images

The first two cases of the new Omicron variant have been detected in North America, the Canadian government announced Sunday evening.

Driving the news: The World Health Organization has named Omicron a "variant of concern," but cautioned earlier on Sunday that it is not yet clear whether it's more transmissible than other strains of COVID-19.

7 hours ago - Health

WHO: Not yet known whether Omicron leads to more severe disease

Photo illustration: Pavlo Gonchar/SOPA Images/LightRocket via Getty Images

The World Health Organization on Sunday said that it is not yet clear whether the newly discovered Omicron variant is more transmissible than other strains of the COVID-19 virus.

Why it matters: The agency's statement comes as the variant, discovered in South Africa, has already been detected in European and Asian countries.