Overpopulation does not depend only on the size or density of the population, but on the ratio of population to available sustainable resources.
It also depends on the way resources are used and distributed throughout the population.
There is enough surface area on the planet for all of us; however, we can cause an overpopulation problem in a given area which will strain those resources.
Overpopulation cause the following:
May also cause
Societal breakdowns, looting, and riots
During an overpopulation peoriod you will be faced with the rule of 3's basic survival skills
Relocate to a less populated area with good resources
A Malthusian catastrophe (also called a Malthusian check, crisis, disaster, or nightmare) was originally foreseen to be a forced return to subsistence-level conditions once population growth had outpaced agricultural production. Later formulations consider economic growth limits as well. The term is also commonly used in discussions of oil depletion.
Based on the work of political economist Thomas Malthus (1766–1834), theories of Malthusian catastrophe Iron Law of Wages. The main difference is that the Malthusian theories predict what will happen over several generations or centuries, whereas the Iron Law of Wages predicts what will happen in a matter of years and decades.
An August 2007 science review in The New York Times raised the claim that the Industrial Revolution had enabled the modern world to break out of the Malthusian Trap, while a front page Wall Street Journal article in March 2008 pointed out various limited resources which may soon limit human population growth because of a widespread belief in the importance of prosperity for every individual and the rising consumption trends of large developing nations such as China and India.
Eugenics is the study and practice of selective breeding applied to humans, with the aim of improving the species. In a historical and broader sense, eugenics can also be a study of "improving human genetic qualities." Advocates of eugenics sought to counter what they regarded as dysgenic dynamics within the human gene pool. Specifically, in regard to the continuation of congenital disorders and factors impacting overall societal intelligence relating to the heritability of IQ.
Eugenics was widely popular in the early decades of the 20th century, but has largely fallen into disrepute after having become associated with Nazi Germany. Since the postwar period, both the public and the scientific communities have associated eugenics with Nazi abuses, such as enforced racial hygiene, human experimentation, and the extermination of "undesired" population groups. However, developments in genetic, genomic, and reproductive technologies at the end of the 20th century have raised many new questions and concerns about what exactly constitutes the meaning of eugenics and what its ethical and moral status is in the modern era.