World population reaches 8 billion

The world’s population reached 8 billion on Tuesday, a growth of 1 billion over the past 12 years and reflects the rapid population growth of recent decades, with India expected to become the world’s most populous country next year, surpassing China.

The milestone of the world’s population of 8 billion has long-term significance for both rich and poor countries. While it took hundreds of thousands of years for the world’s population to reach 1 billion, the world only grew from 7 billion to 8 billion since 2010, reflecting advances in health.

As the world expects to grow even more to more than 10 billion in the next 60 years, as the UN Population Division of the Department of Economic and Social Affairs (DESA) reported, population growth is slowing compared to the past, and the UN warns that the challenges of feeding , house and love that the number of people polluting the climate will be significant. On the positive side, the increase in global life expectancy grew to nearly 73 years and is expected to reach 77 years by 2050.

Another key point in the UN population report, updated in the November briefing, is the gender gap: today there are just slightly more men than women, but that will disappear by 2050.

The ‘8 billion’ person figure is also a wake-up call for the US, as the report says global migration “will be the single driver of population growth in high-income countries”.

The report was originally published on World Population Day five months ago. It predicted Tuesday as the day for the milestone of 8 billion people, now dubbed “Eight Billion Day”, to be launched by DESA, the United Nations Health Organization (WHO), and the United Nations Population Fund (UNFPA). at UN headquarters in New York. York. A more recent policy note – with charts and projections from DESA was updated this month.

The world’s population is growing at the slowest rate since 1950, with growth of less than 1% in 2020. The report estimates that there will be 8.5 billion people in 2030 and 9.7 billion in 2050, before reaching a peak in the 2080s. peak of 10.4 billion people and to stay that way. level up to 2100.

So, how do we know that the eight billionth baby was born today?

Frankly, says the UN, we don’t.

John Wilmoth, director of DESA’s UN population division, admitted – when the report was published – that the day is somewhat arbitrary, but important to mark the milestone.

“We’re not pretending that’s the actual date … and we think the uncertainty is at least plus or minus a year,” he said.

That’s because the combination of outdated censuses in many countries and proliferation of conflict and the COVID19 pandemic made a door-to-door census difficult, and the numbers are based on projections in some countries.

Half of the population growth through 2050 will occur in the following eight countries, the UN says: Congo, Egypt, Ethiopia, India, Nigeria, Pakistan, the Philippines and Tanzania.

The UN calls the growth “a testament to achievements in public health and medicine”.

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