The world population will see a likely increase of 2.5 billion over the next 43 years, by moving from 6.7 billion currently to 9.2 billion in 2050.

The less developed countries will see a rise in population from 5.4 billion in 2007 to 7.9 billion in 2050. Population growth rates will follow in the countries of India, Nigeria, Pakistan, Congo, Ethiopia, US, Bangladesh and China. According to the UNFPA (United Nations Population Fund), investment in healthcare and social services will help the developing countries. However, the developing countries like India have the advantage of lower dependency ratio. Europe is the only region at this moment where the number of people aged 60 and above has already surpassed the number of children. The UN report is based on the study “Revision of the Official United Nations Population Estimates and Projections”. As per the report there will be decline in the cases of HIV/ AIDS due to increase utlisation of anti-retroviral drugs. As per the report, 46 countries are expected to lose population by mid-century which includes: Germany, Italy, Japan, South Korea et al.  

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