Final answer:
The world's population is predicted to be around 9 billion inhabitants in 2050, according to the United Nations and the U.S. Census Bureau, with estimates suggesting a range of 9.4 to 9.7 billion people by that year.
Step-by-step explanation:
Despite the slowing rate of population growth, it is predicted that the world's population will be around 9 billion inhabitants in 2050. The United Nations and the U.S. Census Bureau have provided estimates that suggest by 2050, the planet will host 9.4 to 9.7 billion people.
As of current trends, marked by increasing global population numbers, particularly in developing nations, and variables including fertility, mortality, and migration rates, demographers work to predict these changes. Such population projections are critical for planning purposes, including food security, housing, and infrastructure development. By 2100, this number could rise significantly more, with some estimates suggesting anywhere from 10 to 11 billion.
It's important to note, however, that predicting population growth can be complex, as it involves considering fluctuations in birth rates, the impact of politico-economic conditions, as well as health and environmental factors that could affect global demographics.