Considered as a major problem for the balance of our planet, the increase in the worried population. We are 7.9 billion people and could reach the 03,2 billion in 2100. What are the consequences of overpopulation on our quality of life? Is the number of individuals on Earth really the main problem for the future of the blue planet? Opinions diverge.
Overpopulation (or overcrowding) is a relative concept that designates an excess of the number of individuals in relation to available resources, or in relation to standards (housing, classes). This number of individuals then exceeds the carrying capacity of its habitat to provide the resources necessary to ensure the survival of the species, and to repair the aggressions inflicted on its environment (pollution for example).
Uncertain figure data
In terms of figures, we are approximately 7.9 billion human beings in 2022 and to understand the evolution of the world population, you have to go back in time. 200000 years will have been necessary to reach 1 billion individuals, then only 100 years for the 7.9 billion that we represent. With improvements in the quality of life, we are living longer and the population is increasing year by year. Indeed, there are always more births than deaths in the world. Yet population growth is expected to decelerate, as families are not as large as before.
According to the latest UN world population projections ( revised every two years), the Earth should be populated by approximately 9.8 billion people in 2022 and 11,2 billion in 2100. In some countries, population growth will continue, as the downward trend in fertility has started later than in European countries, Asia and America. This is the case of Afghanistan, India and Pakistan, and other countries located on the African country.
In reality, these are only projections and the various scenarios do not match. A study predicts that we will be about 2 billion less than predicted by the UN in 2022. The decline would be linked to the most fantastic access to contraception and the best sex education anywhere in the world.
on the environment and on people
Exceeding these plantar limits risks leading to sudden, non-linear and difficult to predict changes that could be catastrophic for humanity