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Doomsday scenarios are possible events that could cause human extinction or the destruction of all or most life on Earth (a "true" or "major" Armageddon scenario), or alternatively a "lesser" Armageddon scenario in which the cultural, technological, environmental or social world is so greatly altered it could be considered like a different world.
However, in a worst-case scenario (top trace), sea levels could rise 5 meters (16 feet) by the year 2300. [ 30 ] Human-caused climate change has been driven by technology since the 19th century or earlier.
A global catastrophic risk or a doomsday scenario is a hypothetical event that could damage human well-being on a global scale, [2] even endangering or destroying modern civilization. [3] An event that could cause human extinction or permanently and drastically curtail humanity's existence or potential is known as an " existential risk ".
Belief in the apocalypse is most prevalent in people with lower levels of education, lower household incomes, and those under the age of 35. [9] [10] In the United Kingdom in 2015, 23% of the general public believed the apocalypse was likely to occur in their lifetime, compared to 10% of experts from the Global Challenges Foundation.
An impact event is commonly seen as a scenario that would bring about the end of civilization. In 2000, Discover magazine published a list of 20 possible sudden doomsday scenarios with an impact event listed as the most likely to occur.
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.
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A climate apocalypse is a term used to denote a predicted scenario involving the global collapse of human civilization due to climate change. Such collapse could theoretically arrive through a set of interrelated concurrent factors such as famine, extreme weather , war and conflict, and disease. [ 1 ]