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Others worried that the RHIC [57] or the Large Hadron Collider might start a chain-reaction global disaster involving black holes, strangelets, or false vacuum states. [58] It has been pointed out that much more energetic collisions take place currently in Earth's atmosphere. [59] [60] [61]
The 2010 Guatemala City sinkhole was a disaster on 30 May 2010, in which an area approximately 20 m (65 feet) in diameter and 90 m (300 feet) deep collapsed in Guatemala City's Zona 2, swallowing a three-story factory.
The sinkhole was created by fluid from a sewer eroding uncemented volcanic ash, limestone, and other pyroclastic deposits underlying Guatemala City. [1] [2] The hazards around the pipe have since then been mitigated, by improved handling of the city's wastewater and runoff, [3] and plans to develop on the site have been proposed.
The article, which summarizes proofs aimed at ruling out any possible black hole disaster at the LHC, relies on a number of new safety arguments as well as certain arguments already present in Giddings' and Mangano's paper "Astrophysical implications of hypothetical stable TeV-scale black holes". [83]
A disaster severe enough to cause the permanent, irreversible collapse of human civilisation would constitute an existential catastrophe, even if it fell short of extinction. [18] Similarly, if humanity fell under a totalitarian regime, and there were no chance of recovery then such a dystopia would also be an existential catastrophe. [ 19 ]
Apocalyptic fiction is a subgenre of science fiction that is concerned with the end of civilization due to a potentially existential catastrophe such as nuclear warfare, pandemic, extraterrestrial attack, impact event, cybernetic revolt, technological singularity, dysgenics, supernatural phenomena, divine judgment, climate change, resource depletion or some other general disaster.
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The World Without Us is a 2007 non-fiction book about what would happen to the natural and built environment if humans suddenly disappeared, written by American journalist Alan Weisman and published by St. Martin's Thomas Dunne Books. [1]