November 30, 2022

Global population reaches 8 billion. It took only 12 years to go from 7 to 8 billion and will take 14.5 years to reach 9 billion in 2037

OCTOBER 11, 2022 - WASHINGTON DC. 2022 IMF/WORLD BANK ANNUAL MEETINGS: Inclusive Growth: The Key to a Lasting Recovery World Bank convenes a broad set of voices to underscore the urgency of the poverty challenge and the limited ability developing countries have to offset shocks through fiscal policy. It will highlight the policies that can support inclusive growth based on the World Bank’s country experience and knowledge work. David R. Malpass, President, World Bank Group; Lawrence H. Summers, President Emeritus and Charles W. Eliot University Professor, Harvard University; Makhtar Diop, Managing Director, IFC; Karima Ola, Lead, LeapFrog’s African Financial Services; Mayada El-Zoghbi, Managing Director, Center for Financial; Karima Ola, Partner, LeapFrog Investments; Mayada El-Zoghbi Managing Director, Center for Financial Inclusion; Susan Lund VP for Economics and Private Sector Development, IFC. Photo: World Bank /

The global population is projected to reach 8 billion today, Tuesday, November 15, 2022, signaling major improvements in public health that have lowered the risk of dying and increased life expectancy.

The United Nations says that although it took about 12 years for the world population to grow from 7 to 8 billion, the next billion is expected to take approximately 14.5 years (2037), reflecting the slowdown in global growth. World population is projected to reach a peak of around 10.4 billion people during the 2080s and to remain at that level until 2100.

To go from 7 to 8 billion people, around 70 per cent of the added population was in low-income and lower-middle-income countries, UN says, adding that, “For the increase from 8 to 9 billion, these two groups of countries are expected to account for more than 90 per cent of global growth.”

 Between now and 2050, the global increase in the population under age 65 will occur entirely in low income and lower-middle-income countries, since population growth in high-income and upper-middle income countries will occur only among those aged 65 years or over.

“Unless we bridge the yawning chasm between the global haves and have-nots, we are setting ourselves up for an 8-billion-strong world filled with tensions and mistrust, crisis and conflict,” said UN Secretary-General António Guterres

Guterres and others at the United Nations argue that the moment is also a clarion call for humanity to look beyond the numbers and meet its shared responsibility to protect people and the planet, starting with the most vulnerable.

Read below, recommendations by the United Nations.

A more demographically diverse world than ever before 

While the world’s population will continue to grow to around 10.4 billion in the 2080s, the overall rate of growth is slowing down. The world is more demographically diverse than ever before, with countries facing starkly different population trends ranging from growth to decline. Today, two-thirds of the global population lives in a low fertility context, where the lifetime fertility is below 2.1 births per woman. At the same time, population growth has become increasingly concentrated among the world’s poorest countries, most of which are in sub-Saharan Africa. 

Against this backdrop, the global community must ensure that all countries, regardless of whether their populations are growing or shrinking, are equipped to provide a good quality of life for their populations and can lift up and empower their most marginalised people. 

“A world of 8 billion is a milestone for humanity – the result of longer lifespans, reductions in poverty, and declining maternal and childhood mortality. Yet, focusing on numbers alone distracts us from the real challenge we face: securing a world in which progress can be enjoyed equally and sustainably,” said UNFPA Executive Director Dr. Natalia Kanem. “We cannot rely on one-size-fits-all solutions in a world in which the median age is 41 in Europe compared to 17 in sub-Saharan Africa. To succeed, all population policies must have reproductive rights at their core, invest in people and planet, and be based on solid data.”

Complex linkages between population, sustainable development and climate change

While the Day of 8 Billion represents a success story for humanity, it also raises concerns about links between population growth, poverty, climate change and the achievement of the Sustainable Development Goals. The relationship between population growth and sustainable development is complex.

Rapid population growth makes eradicating poverty, combatting hunger and malnutrition, and increasing the coverage of health and education systems more difficult. Conversely, achieving the SDGs, especially those related to health, education and gender equality, will contribute to slowing global population growth.

Relatedly, although slower population growth–if maintained over several decades–could help to mitigate environmental degradation, conflating population growth with a rise in greenhouse gas emissions ignores that countries with the highest consumption and emissions rates are those where population growth is already slow or even negative. Meanwhile, the majority of the world’s population growth is concentrated among the poorest countries, which have significantly lower emissions rates but are likely to suffer disproportionately from the effects of climate change. 

“We must accelerate our efforts to meet the objectives of the Paris Agreement as well as achieve the SDGs,” said Li Junhua, UN Under-Secretary-General for Economic and Social Affairs. “We need a rapid decoupling of economic activity from the current over-reliance on fossil-fuel energy, as well as greater efficiency in the use of those resources, and we need to make this a just and inclusive transition that supports those left furthest behind.”

The need for a sustainable future built on rights and choices

In order to usher in a world in which all 8 billion people can thrive, we must look to proven and effective solutions to mitigate our world’s challenges and achieve the SDGs, while prioritizing human rights. In order to pursue these solutions, increased investment from member states and donor governments is needed in policies and programs that work to make the world safer, more sustainable and more inclusive.

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