According to the United Nations, the world's population will reach 8 billion today. Here are some key facts from the UN report.
- India will surpass China as the world's most populous country in 2023.
- The world's population is growing at its slowest pace since 1950.
- More than half of projected growth in the coming years will come from eight countries: the Democratic Republic of the Congo, Egypt, Ethiopia, India, Nigeria, Pakistan, the Philippines and Tanzania.
- In 2019 global life expectancy at birth reached 72.8. This is nine years more than life expectancy in 1990. However, people in least developed countries have a life expectancy seven years shorter. This disparity is in some cases due to maternal and child mortality, conflict and violence, or HIV.
- In 2021 average life expectancy at birth fell to 71 years due to the COVID-19 pandemic.
- On average, women around the world live over five years longer than men.
- On average around the world, each woman gives birth to 2.3 children. This is down from five children per woman in 1950.
- The world's 46 least developed countries are among the fastest growing.
- International migration is an important component of population change. In wealthy countries immigration is a main driver of population growth.
Read more here:
"World Population Prospects 2022" - United Nations Department of Economic and Social Affairs