Solution:As per the World Bank data, the World Population was around 6.5 billion in the year 2005. As per 'World Population Prospects 2022', the world's population is estimated to in- crease from about 8 billion in 2022 to 9.7 billion by 2050. As per UNFPA's 'State of World Population 2024', estimated world population is 8,119 million in 2024.Key Highlights of UNFPA State of the World Population 2025:
1. Global Population Trends: World population stands at 8.2 billion; growth has slowed but disparities remain between high-income and low-income countries.
2. Fertility Crisis Redefined: The real crisis is unmet fertility goals-not just overpopulation or underpopulation, but denial of reproductive choice.
3. Reproductive Agency: Emphasis on individual rights to decide freely on reproduction, contraception, and timing of childbirth.
4. Demographic Dividend: Over 60% of the world's population is in the 15-64 age group, offering a productivity window.
5. Ageing Population Concern: Global elderly population (65+) is growing rapidly, requiring focused health and pension reforms.
6. Youth Bulge in LMICS: Low- and middle-income countries (like India, Nigeria) have large youth populations with untapped potential.
7. Gender & Fertility Gaps: Women's education and autonomy significantly influence fertility patterns and gaps persist in access to healthcare & contraception.