New Delhi, July 10 -- Each year, World Population Day is observed on 11 July, to raise awareness about global population issues. The world's population is expected to cross 8.23 billion in 2025.

In 1989, the United Nations established this day after the global body inspired by the world population hitting five billion on 11 July 1987.

A senior demographer at the World Bank, Dr. KC Zachariah, proposed marking this occasion as World Population Day, after they were inspired by 'Five Billion Day' on 11 July 1987, when the world population reached 5 billion.

With the World Population Day, the United Nations wants to highlight the global importance of addressing population-related challenges and promoting sustainable development.

Over time,...