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Human overpopulation (or human population overshoot) is the idea that human populations may become too large to be sustained by their environment or resources in the long term. The topic is usually discussed in the context of world population , though it may concern individual nations, regions, and cities.
Overpopulation or overabundance is a state in which the population of a species is larger than the carrying capacity of its environment.This may be caused by increased birth rates, lowered mortality rates, reduced predation or large scale migration, leading to an overabundant species and other animals in the ecosystem competing for food, space, and resources.
This is a list of organisations who promote a moderation of the size of the human population. This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources .
The global population is expanding rapidly thanks to major advances in public health, but can the Earth sustain so many humans?
Human population projections are attempts to extrapolate how human populations will change in the future. [1] These projections are an important input to forecasts of the population's impact on this planet and humanity's future well-being. [2] Models of population growth take trends in human development and apply projections into the future. [3]
Population density (people per km 2) by country. This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile.
Throughout history, fears regarding overpopulation have often referenced the work of 18th-century economist Thomas Malthus, who predicted humanity's growth would outpace its ability to sustain itself with resources. [10] [12] [13] Others have pointed to declining fertility as a potential harbinger of demographic disaster.
High, medium, and low projections of the future human world population [1]. In world demographics, the world population is the total number of humans currently alive. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022.