The global population is projected to reach eight billion on November 15 this year, based on the latest projection by the United Nations. The latest UN projections suggest that the world’s population could grow to around 8.5 billion in 2030 and 9.7 billion in 2050, before reaching a peak of around 10.4 billion people during the 2080s. The population is expected to remain at that level until 2100. More than half of the projected increase in global population up to 2050 will be concentrated in just eight countries: Pakistan, DR Congo, Egypt, Ethiopia, India, Nigeria, the Philippines, and Tanzania, according to UN’s World Population Prospects 2022 report. Countries of Sub-Saharan Africa are expected to contribute more than half of the increase anticipated through 2050. The report, released on Monday to coincide with World Population Day, also shows that India is on course to surpass China as the world’s most populous country in 2023. The latest UN projections suggest that the world’s population could grow to around 8.5 billion in 2030 and 9.7 billion in 2050, before reaching a peak of around 10.4 billion people during the 2080s. The population is expected to remain at that level until 2100. Achieving the UN Sustainable Development Goals, especially those related to health, education and gender equality, will contribute to reducing fertility levels and slowing global population growth. The world should expect to see far more grey hairs by 2050: by then, it is expected that the number of persons aged 65 years or over worldwide will be more than twice the number of children under the age of five, and about the same as the number under age 12. Further reductions in mortality are projected to result in an average global longevity of around 77.2 years in 2050. Yet in 2021, life expectancy for the least developed countries lagged seven years behind the global average. The report recommends that countries with aging populations should take steps to adapt public programmes to the growing numbers of older persons, establishing universal health care and long-term care systems, and by improving the sustainability of social security and pension systems.