The world population is predicted to hit 8 billion on Tuesday which is a monumental milestone in human history. The development came just 11 years after the population hit 7 billion in 2011.
The number of people has grown rapidly for almost all of humanity’s existence. Between 1 C.E. and 1650, the population grew only 200 million, however, the world is now expected to grow another half a billion in less than a decade by 2030. Interestingly, this growth is attributed to the increased life expectancy due to medical advancements in this era. The United Nations predicted that the population will peak at around 10.7 billion in the 2080s. But, growth of population is the slowest its been since 1950, and was even less than 1 per cent in 2020, the UN reported.
Experts have predicted that Egypt, Ethiopia, India, Nigeria, Pakistan, the Philippines, and Tanzania will make up 50% of the world population by 2050. India is expected to overtake China as the most populous country as early as 2023, Forbes reported.
The population of those above 65 is steadily increasing while the population of children is decreasing, due to reducing fertility rates all over the world. This could pose a problem in the future with fewer youth to support the growing population of elderly people.
As the population still growing, especially in developing countries, the threat for environment or the threat of climate change becomes more rampant. The Intergovernmental Panel on Climate Change (IPCC) predicted that 3% of the population will be displaced because of climate challenges.