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Human extinction 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 report concluded that global warming of 2 °C (3.6 °F) over the preindustrial levels would threaten an estimated 5% of all the Earth's species with extinction even in the absence of the other four factors, while if the warming reached 4.3 °C (7.7 °F), 16% of the Earth's species would be threatened with extinction.
Human exploitation now threatens the survival of this species. Overfishing is the primary driver of shark population declines, which have fallen over 71% since 1970. [97] [98] Extinction is an important research topic in the field of zoology, and biology in general, and
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. [ 1 ] A series of Regional Red Lists, which assess the risk of extinction to species within a ...
Existential catastrophe refers to the realized destruction of humanity's long-term potential, whereas existential risk refers to the probability that a given hazard will lead to existential catastrophe. Human extinction is one mechanism of existential catastrophe, but others can be imagined such as permanent totalitarian dystopia.
Rishi Sunak has said mitigating the risk of human extinction because of AI should be a global priority alongside pandemics and nuclear war.. AI will pose major security risks to the UK within two ...
The doomsday argument (DA), or Carter catastrophe, is a probabilistic argument that claims to predict the future population of the human species based on an estimation of the number of humans born to date. The doomsday argument was originally proposed by the astrophysicist Brandon Carter in 1983, [ 1 ] leading to the initial name of the Carter ...
In Our Final Hour, Rees explores various risks of human extinction and their likelihood, notably those caused by the unchecked consequences of new technologies (such as nanotechnology or machine superintelligence), uncontrolled scientific experimentation, terrorist or fundamentalist violence, or destruction of the biosphere. [4]