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The concept of overpopulation is clearly negative, since it indicates that the number of inhabitants of a place is too high and the resources available to care for them are insufficient. In this way, the idea of overpopulation is not simply numerical but that depends on that the resources which can be accessed whether adequate or not.
While this concept is used for humans, the animal population also may be affected by this phenomenon. In these cases, the disproportionate number of a race poses a danger when it threatens the balance of an ecosystem.
Causes of overpopulation
Not developed nations, the birth rate is high for two main reasons: the absence of policies of birth and the belief that a large number of children will help the family economy.
Mortality rates are falling in most countries, which is due to an improvement in health systems. On the other hand, the hope of the entire planet half-life also increases significantly.
Migratory movements towards the big cities makes some of them uncontrolled growth.
Effects of overpopulation
The consequences are very diverse and most have a problematic sense. One of them is the problem of employment which, moreover, is aggravated by the increased automation in production processes and the reduced need for labor.
The social exclusion of some sectors of the population is another consequence of the excessive increase of the population.
The stage of the environment and the challenges
Overpopulation has an indisputable impact on the environment. Most of the nature resources are limited and can not satisfy a population that is constantly increasing. In some areas of the planet the felling of forests is associated with the nutritional needs of the population that is growing gradually.
Overcrowding in some cities has obvious effects and all of them are negative: lack of space, feeling overwhelmed or stress, problems of coexistence, etc.
Article contributed by the team of collaborators.