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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 ".
Scenarios in which a global catastrophic risk creates harm have been widely discussed. Some sources of catastrophic risk are anthropogenic (caused by humans), such as global warming, [1] environmental degradation, and nuclear war. [2] Others are non-anthropogenic or natural, such as meteor impacts or supervolcanoes.
Gray goo (also spelled as grey goo) is a hypothetical global catastrophic scenario involving molecular nanotechnology in which out-of-control self-replicating machines consume all biomass (and perhaps also everything else) on Earth while building many more of themselves, [1] [2] a scenario that has been called ecophagy (the literal consumption of the ecosystem). [3]
A plausible and significant contributor to global catastrophic risk; the potential for climate change to be a global catastrophic threat can be referred to as "catastrophic climate change". Global decimation risk: The probability of a loss of 10% (or more) of global population and the severe disruption of global critical systems (such as food ...
The risks covered by the book include both anthropogenic (man made) risks and non-anthropogenic risks. Anthropogenic: artificial general intelligence, biological warfare, nuclear warfare, nanotechnology, anthropogenic climate change, global warming, stable global totalitarianism; Non-anthropogenic: asteroid impacts, gamma-ray bursts
The conflict will pose risks to the global economy, widen geopolitical and political divisions, and stoke global extremism. The straightest path to escalation would be a decision by either Israel ...
A new report commissioned by the US State Department paints an alarming picture of the “catastrophic” national security risks posed by rapidly evolving artificial intelligence, warning that ...
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