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A strain on mental health caused by permanent recession [26] Deflation caused by the aging population [27] All these negative effects could be summarized under the heading of "Underpopulation". Underpopulation is usually defined as a state in which a country's population has declined too much to support its current economic system. [28]
It is used to measure the pressure on the productive population. Population decline caused by sub-replacement fertility rates means that every generation will be smaller than the one before it. Combined with longer life spans the result can be an increase in the dependency ratio which can put increased economic pressure on the work force.
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.
Population bottleneck followed by recovery or extinction. A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts; or human activities such as genocide, speciocide, widespread violence or intentional culling.
Other causes for opposition emerge from the feasibility of substantially impacting human population. According to some researchers, even rapid global adoption of a one-child policy would result in a world population exceeding 8 billion in 2050, and in a scenario involving catastrophic mass death of 2 billion people, world population would ...
Human rights advocates claim government authorities have used the project as a vehicle for pushing indigenous peoples out of their ancestral forests. They are not alone. In developing countries around the globe, forest dwellers, poor villagers and other vulnerable populations claim the World Bank — the planet’s oldest and most powerful ...
Nuclear war is an often-predicted cause of the extinction of humankind. [1]Human extinction or omnicide is the hypothetical end of the human species, either by population decline due to extraneous natural causes, such as an asteroid impact or large-scale volcanism, or via anthropogenic destruction (self-extinction), for example by sub-replacement fertility.
The demographic crisis. It’s on the minds of many of the business world’s heavy hitters as the realization sets in that the developed world is not having enough children.