Doomsday Clock
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The Doomsday Clock is a symbol that represents the likelihood of a man-made global catastrophe, in the opinion of the members of the ''
Bulletin of the Atomic Scientists The ''Bulletin of the Atomic Scientists'' is a nonprofit organization concerning science and global security issues resulting from accelerating technological advances that have negative consequences for humanity. The ''Bulletin'' publishes conte ...
''. Maintained since 1947, the clock is a metaphor for threats to humanity from unchecked scientific and technological advances. A hypothetical global catastrophe is represented by midnight on the clock, with the ''Bulletin''s opinion on how close the world is to one represented by a certain number of minutes or seconds to midnight, assessed in January of each year. The main factors influencing the clock are nuclear risk and
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
. The ''Bulletin''s Science and Security Board monitors new developments in the life sciences and technology that could inflict irrevocable harm to humanity. The clock's original setting in 1947 was seven minutes to midnight. It has since been set backward eight times and forward 16 times for a total of 24, the farthest from midnight being 17 minutes in 1991, and the nearest being 100 seconds, from 2020 to the present. The clock was moved to two and a half minutes in 2017, then forward to two minutes to midnight in January 2018, and left unchanged in 2019. In January 2020, it was moved forward to 100 seconds before midnight. The clock's setting was left unchanged in both 2021 and 2022. Since 2010, the clock has been moved forward over four minutes, and has changed by five minutes and twenty seconds since 1947.


History

The Doomsday Clock's origin can be traced to the international group of researchers called the Chicago Atomic Scientists, who had participated in the
Manhattan Project The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project w ...
. After the
atomic bombings of Hiroshima and Nagasaki The United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945, respectively. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the onl ...
, they began publishing a
mimeograph A mimeograph machine (often abbreviated to mimeo, sometimes called a stencil duplicator) is a low-cost duplicating machine that works by forcing ink through a stencil onto paper. The process is called mimeography, and a copy made by the pro ...
ed newsletter and then the magazine, ''Bulletin of the Atomic Scientists'', which, since its inception, has depicted the Clock on every cover. The Clock was first represented in 1947, when the ''Bulletin'' co-founder Hyman Goldsmith asked artist
Martyl Langsdorf Martyl Suzanne Schweig Langsdorf (March 16, 1917 – March 26, 2013) was an American artist who created the Doomsday Clock image for the June 1947 cover of the ''Bulletin of the Atomic Scientists''.Yardley, William (April 10, 2013)Martyl Langsdor ...
(wife of
Manhattan Project The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project w ...
research associate and Szilárd petition signatory
Alexander Langsdorf, Jr. Alexander Suss Langsdorf Jr. (May 30, 1912 – May 24, 1996) was an American physicist on the team that developed the atomic bomb and several devices related to nuclear physics. He was a vocal opponent of the use and proliferation of nuclear we ...
) to design a cover for the magazine's June 1947 issue. As
Eugene Rabinowitch Eugene Rabinowitch (1901–1973) was a Russian-born American biophysicist who is known for his work in photosynthesis and nuclear energy. He was a co-author of the Franck Report and a co-founder in 1945 of the '' Bulletin of the Atomic Scientists ...
, another co-founder of the ''Bulletin'', explained later Langsdorf chose a clock to reflect the urgency of the problem: like a countdown, the Clock suggests that destruction will naturally occur unless someone takes action to stop it. In January 2007, designer
Michael Bierut Michael Bierut (born 1957) is a graphic designer, design critic and educator, who has been a partner at design firm Pentagram since 1990. He designed the logo for Hillary Clinton's 2016 presidential campaign. Early life and education Michael Bier ...
, who was on the ''Bulletin''s Governing Board, redesigned the Doomsday Clock to give it a more modern feel. In 2009, the ''Bulletin'' ceased its print edition and became one of the first print publications in the U.S. to become entirely digital; the Clock is now found as part of the logo on the ''Bulletin'''s website. Information about the Doomsday Clock Symposium, a timeline of the Clock's settings, and multimedia shows about the Clock's history and culture can also be found on the ''Bulletin''s website. The 5th Doomsday Clock Symposium was held on November 14, 2013, in
Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
; it was a day-long event that was open to the public and featured panelists discussing various issues on the topic "Communicating Catastrophe". There was also an evening event at the
Hirshhorn Museum and Sculpture Garden The Hirshhorn Museum and Sculpture Garden is an art museum beside the National Mall, in Washington, D.C., the United States. The museum was initially endowed during the 1960s with the permanent art collection of Joseph H. Hirshhorn. It was des ...
in conjunction with the Hirshhorn's current exhibit, "Damage Control: Art and Destruction Since 1950". The panel discussions, held at the
American Association for the Advancement of Science The American Association for the Advancement of Science (AAAS) is an American international non-profit organization with the stated goals of promoting cooperation among scientists, defending scientific freedom, encouraging scientific respons ...
, were streamed live from the ''Bulletin''s website and can still be viewed there. Reflecting international events dangerous to humankind, the Clock has been adjusted 24 times since its inception in 1947, when it was set to "seven minutes to midnight".


Basis for settings

"Midnight" has a deeper meaning to it besides the constant threat of war. There are various things taken into consideration when the scientists from ''The Bulletin of the Atomic Scientists'' decide what Midnight and "global catastrophe" really mean in a particular year. They might include "politics, energy, weapons, diplomacy, and climate science"; potential sources of threat include nuclear threats, climate change,
bioterrorism Bioterrorism is terrorism involving the intentional release or dissemination of biological agents. These agents are bacteria, viruses, insects, fungi, and/or toxins, and may be in a naturally occurring or a human-modified form, in much the same ...
, and
artificial intelligence Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech re ...
. Members of the board judge Midnight by discussing how close they think humanity is to the end of civilization. In 1947, at the beginning of the Cold War, the Clock was started at seven minutes to midnight. The Clock's setting is decided without a specified starting time. The Clock is not set and reset in real time as events occur; rather than respond to each and every crisis as it happens, the Science and Security Board meets twice annually to discuss global events in a deliberative manner. The closest nuclear war threat, the
Cuban Missile Crisis The Cuban Missile Crisis, also known as the October Crisis (of 1962) ( es, Crisis de Octubre) in Cuba, the Caribbean Crisis () in Russia, or the Missile Scare, was a 35-day (16 October – 20 November 1962) confrontation between the United S ...
in 1962, reached crisis, climax, and resolution before the Clock could be set to reflect that possible doomsday.


Fluctuations and threats

Before January 2020, the two tied-for-lowest points for the Doomsday Clock were in 1953, when the Clock was set to two minutes until midnight after the U.S. and the Soviet Union began testing hydrogen bombs, and in 2018, following the failure of world leaders to address tensions relating to nuclear weapons and climate change issues. In other years, the Clock's time has fluctuated from 17 minutes in 1991 to minutes in 2017. Discussing the change to minutes in 2017, the first use of a fraction in the Clock's history,
Lawrence Krauss Lawrence Maxwell Krauss (born May 27, 1954) is an American theoretical physicist and cosmologist who previously taught at Arizona State University, Yale University, and Case Western Reserve University. He founded ASU's Origins Project, now cal ...
, one of the scientists from the ''Bulletin'', warned that political leaders must make decisions based on facts, and those facts "must be taken into account if the future of humanity is to be preserved." In an announcement from the ''Bulletin'' about the status of the Clock, they went as far to call for action from "wise" public officials and "wise" citizens to make an attempt to steer human life away from catastrophe while humans still can. On January 24, 2018, scientists moved the clock to two minutes to midnight, based on threats greatest in the nuclear realm. The scientists said, of recent moves by
North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korea, Korean Peninsula and shares borders with China and Russia to the north, at the Yalu River, Y ...
under
Kim Jong-un Kim Jong-un (; , ; born 8 January 1982) is a North Korean politician who has been Supreme Leader of North Korea since 2011 and the leader of the Workers' Party of Korea (WPK) since 2012. He is a son of Kim Jong-il, who was North Korea's sec ...
and the administration of
Donald Trump Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who served as the 45th president of the United States from 2017 to 2021. Trump graduated from the Wharton School of the University of Pe ...
in the US: "Hyperbolic rhetoric and provocative actions by both sides have increased the possibility of nuclear war by accident or miscalculation". The clock was left unchanged in 2019 due to the twin threats of nuclear weapons and climate change, and the problem of those threats being "exacerbated this past year by the increased use of information warfare to undermine democracy around the world, amplifying risk from these and other threats and putting the future of civilization in extraordinary danger." On January 23, 2020, the Clock was moved further, to 100 seconds (1 minute 40 seconds) before midnight, meaning that the Clock's current setting is the closest it has ever been to midnight since its inception in 1947. The ''Bulletin''s executive chairman,
Jerry Brown Edmund Gerald Brown Jr. (born April 7, 1938) is an American lawyer, author, and politician who served as the 34th and 39th governor of California from 1975 to 1983 and 2011 to 2019. A member of the Democratic Party, he was elected Secretary of S ...
, said "the dangerous rivalry and hostility among the superpowers increases the likelihood of nuclear blunder... Climate change just compounds the crisis". The "100 seconds to midnight" setting remained unchanged in 2021 and 2022, and continued to remain so after Russia invaded Ukraine in February 2022.


Reception

The Doomsday Clock has become a universally recognized metaphor according to ''The Two-Way'', an NPR blog. According to the ''Bulletin'', the Clock attracts more daily visitors to the ''Bulletin'''s site than any other feature.
Anders Sandberg Anders Sandberg (born 11 July 1972) is a Swedish researcher, futurist and transhumanist. He holds a PhD in computational neuroscience from Stockholm University, and is currently a senior research fellow at the Future of Humanity Institute at th ...
of the
Future of Humanity Institute The Future of Humanity Institute (FHI) is an interdisciplinary research centre at the University of Oxford investigating big-picture questions about humanity and its prospects. It was founded in 2005 as part of the Faculty of Philosophy and t ...
has stated that the "grab bag of threats" currently mixed together by the Clock can induce paralysis. People may be more likely to succeed at smaller, incremental challenges; for example, taking steps to prevent the accidental detonation of nuclear weapons was a small but significant step towards avoiding nuclear war. Alex Barasch in ''
Slate Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. ...
'' argues that "Putting humanity on a permanent, blanket high-alert isn't helpful when it comes to policy or science", and criticizes the ''Bulletin'' for neither explaining nor attempting to quantify their methodology. Cognitive psychologist
Steven Pinker Steven Arthur Pinker (born September 18, 1954) is a Canadian-American cognitive psychologist, psycholinguist, popular science author, and public intellectual. He is an advocate of evolutionary psychology and the computational theory of mind. P ...
harshly criticized the Doomsday Clock as a political stunt, pointing to the words of its founder that its purpose was "to preserve civilization by scaring men into rationality." He stated that it is inconsistent and not based on any
objective Objective may refer to: * Objective (optics), an element in a camera or microscope * ''The Objective'', a 2008 science fiction horror film * Objective pronoun, a personal pronoun that is used as a grammatical object * Objective Productions, a Brit ...
indicators of security, using as an example its being farther from midnight in 1962 during the
Cuban Missile Crisis The Cuban Missile Crisis, also known as the October Crisis (of 1962) ( es, Crisis de Octubre) in Cuba, the Caribbean Crisis () in Russia, or the Missile Scare, was a 35-day (16 October – 20 November 1962) confrontation between the United S ...
than in the "far calmer 2007". He argued it was another example of humanity's tendency toward historical pessimism, and compared it to other predictions of self-destruction that went unfulfilled. Conservative media often clash against the ''Bulletin''. Keith Payne writes in the ''
National Review ''National Review'' is an American conservative editorial magazine, focusing on news and commentary pieces on political, social, and cultural affairs. The magazine was founded by the author William F. Buckley Jr. in 1955. Its editor-in-chief i ...
'' that the Clock overestimates the effects of "developments in the areas of nuclear testing and formal arms control". Tristin Hopper in the ''
National Post The ''National Post'' is a Canadian English-language broadsheet newspaper available in several cities in central and western Canada. The paper is the flagship publication of Postmedia Network and is published Mondays through Saturdays, with ...
'' acknowledges that "there are plenty of things to worry about regarding climate change", but states that climate change is not in the same league as total nuclear destruction. In addition, some critics accuse the ''Bulletin'' of pushing a political agenda.


Timeline


In popular culture

* " Seven Minutes to Midnight", a 1980 single by Wah! Heat, refers to that year's change of the Doomsday Clock from nine to seven minutes to midnight. * Australian rock band
Midnight Oil Midnight Oil (known informally as "The Oils") are an Australian rock band composed of Peter Garrett (vocals, harmonica), Rob Hirst (drums), Jim Moginie (guitar, keyboard) and Martin Rotsey (guitar). The group was formed in Sydney in 1972 by ...
's 1984 LP '' Red Sails in the Sunset'' features a song called "
Minutes to Midnight The Doomsday Clock is a symbol that represents the likelihood of a man-made global catastrophe, in the opinion of the members of the ''Bulletin of the Atomic Scientists''. Maintained since 1947, the clock is a metaphor for threats to humanity ...
", and the album's cover shows an aerial-view rendering of
Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountain ...
after a nuclear strike. In 1984, lead singer
Peter Garrett Peter Robert Garrett (born 16 April 1953) is an Australian musician, environmentalist, activist and former politician. In 1973, Garrett became the lead singer of the Australian rock band Midnight Oil. As a performer he is known for his sign ...
ran for a seat in the
Australian Senate The Senate is the upper house of the Bicameralism, bicameral Parliament of Australia, the lower house being the House of Representatives (Australia), House of Representatives. The composition and powers of the Senate are established in Chapter ...
as a candidate for the
Nuclear Disarmament Party The Nuclear Disarmament Party (NDP) was an Australian political party formed in June 1984. It was founded by medical researcher Michael Denborough as the political arm of the Australian anti-nuclear movement, which had been active since the earl ...
. He has since been elected to the
Australian House of Representatives The House of Representatives is the lower house of the bicameral Parliament of Australia, the upper house being the Senate. Its composition and powers are established in Chapter I of the Constitution of Australia. The term of members of the ...
as a member of the Labor Party and later served as Minister for the Environment. * The title of
Iron Maiden Iron Maiden are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris. While fluid in the early years of the band, the lineup for most of the band's history has consisted of Harri ...
's 1984 song " 2 Minutes to Midnight" is a reference to the Doomsday Clock. * The Doomsday Clock appears in the beginning of the 1985 music video for "
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" by
Sting Sting may refer to: * Stinger or sting, a structure of an animal to inject venom, or the injury produced by a stinger * Irritating hairs or prickles of a stinging plant, or the plant itself Fictional characters and entities * Sting (Middle-eart ...
. * The 1986 short story "
The End of the Whole Mess "The End of the Whole Mess" is a short science fiction story by American writer Stephen King, first published in ''Omni Magazine'' in 1986. It was collected in King's ''Nightmares & Dreamscapes'' in 1993 and in '' Wastelands: Stories of the Apocal ...
" by
Stephen King Stephen Edwin King (born September 21, 1947) is an American author of horror, supernatural fiction, suspense, crime, science-fiction, and fantasy novels. Described as the "King of Horror", a play on his surname and a reference to his high s ...
refers to the Doomsday Clock being set at fifteen seconds before midnight due to elevated geopolitical tension. * The Doomsday Clock was a recurring visual theme in
Alan Moore Alan Moore (born 18 November 1953) is an English author known primarily for his work in comic books including ''Watchmen'', ''V for Vendetta'', ''The Ballad of Halo Jones'', ''Swamp Thing'', ''Batman:'' ''The Killing Joke'', and ''From Hell' ...
and
Dave Gibbons David Chester Gibbons (born 14 April 1949) is an English comics artist, writer and sometimes letterer. He is best known for his collaborations with writer Alan Moore, which include the miniseries ''Watchmen'' and the Superman story "For the Man ...
's seminal ''
Watchmen ''Watchmen'' is an American comic book Limited series (comics), maxiseries by the British creative team of writer Alan Moore, artist Dave Gibbons and colorist John Higgins (comics), John Higgins. It was published monthly by DC Comics in 1986 a ...
'' graphic novel series (1986–87), its 2009 film adaptation, and its 2019 television miniseries sequel. Additionally its sequel series, which takes place in the main
DC Universe The DC Universe (DCU) is the fictional shared universe where most stories in American comic book titles published by DC Comics take place. Superheroes such as Superman, Batman, Wonder Woman, Robin, Martian Manhunter, The Flash, Green Lant ...
, borrows the title. * The title of
Linkin Park Linkin Park is an American rock band from Agoura Hills, California. The band's current lineup comprises vocalist/rhythm guitarist/keyboardist Mike Shinoda, lead guitarist Brad Delson, bassist Dave Farrell, DJ/turntablist Joe Hahn and drummer ...
's 2007 album ''
Minutes to Midnight The Doomsday Clock is a symbol that represents the likelihood of a man-made global catastrophe, in the opinion of the members of the ''Bulletin of the Atomic Scientists''. Maintained since 1947, the clock is a metaphor for threats to humanity ...
'' is a reference to the Doomsday Clock. * In the
Flobots Flobots is an experimental rap rock band from Denver, Colorado, formed in 2005 by Jamie Laurie. The band's origins date back 5 years earlier to a similar project by Laurie. Flobots found mainstream success with their major label debut ''Fight ...
' song "
The Circle in the Square ''The Circle in the Square'' is the third full-length studio album by alternative hip-hop band Flobots." The album was released on August 28, 2012 and peaked at No. 198 on the U.S. Billboard 200 album chart. The Circle in the Square was released ...
", the lyrics say "the clock is now 11:55 on the big hand", which was the Doomsday Clock's setting in 2012 when the song was released. * The title of the 1982 ''
Doctor Who ''Doctor Who'' is a British science fiction television series broadcast by the BBC since 1963. The series depicts the adventures of a Time Lord called the Doctor, an extraterrestrial being who appears to be human. The Doctor explores the u ...
'' episode "
Four to Doomsday ''Four to Doomsday'' is the second serial of the 19th season of the British science fiction television series '' Doctor Who'', which was first broadcast in four twice-weekly parts on BBC1 from 18 to 26 January 1982. The serial is set almost enti ...
" references the Doomsday Clock. In the 2017 episode "
The Pyramid at the End of the World "The Pyramid at the End of the World" is the seventh episode of the tenth series of the British science fiction television series ''Doctor Who''. It was written by Peter Harness and Steven Moffat and broadcast on 27 May 2017 on BBC One. "The Pyr ...
",
the Monks The Monks, referred to by the name monks on record sleeves, were an American garage rock band formed in Gelnhausen, West Germany in 1964. Assembled by five American GIs stationed in the country, the group grew tired of the traditional format ...
changed every clock in the world to three minutes to midnight as a warning about what will happen if humanity does not accept their help. Representatives of the
three 3 is a number, numeral, and glyph. 3, three, or III may also refer to: * AD 3, the third year of the AD era * 3 BC, the third year before the AD era * March, the third month Books * '' Three of Them'' (Russian: ', literally, "three"), a 1901 ...
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powerful armies on Earth agreed not to fight each other, believing a potential war is the catastrophe. However, the clock remained displaying two minutes to midnight. After the Doctor averted the true catastrophe - an accidental bacteriological disaster, the clock began moving backwards. * The Doomsday Clock is featured in
Yael Bartana Yael Bartana ( he, יעל ברתנא; born 1970) is an Israeli artist, filmmaker and photographer, whose past works have encompassed multiple mediums, including photography, film, video, sound, and installation. Many of her pieces feature polit ...
's ''What if Women Ruled the World'', which premiered on July5, 2017 at the
Manchester International Festival The Manchester International Festival is a biennial international arts festival, with a specific focus on original new work, held in the English city of Manchester and run by Factory International. The festival is a biennial event, first taking ...
. * One minute to midnight on the Doomsday Clock is heavily referenced in the
grime Grime may refer to: * Dirt, in the form of black, ingrained dust * Grime (music genre), a genre of music * ''Grime'' (album), a 2001 album by Iniquity * ''Grime'' (video game), a 2021 Metroidvania video game * "Grime", a 2022 song by Dallas Woo ...
/punk crossover song "Effed" by
Nottingham Nottingham ( , East Midlands English, locally ) is a city status in the United Kingdom, city and Unitary authorities of England, unitary authority area in Nottinghamshire, East Midlands, England. It is located north-west of London, south-east ...
rapper Snowy and Jason Williamson of
Sleaford Mods Sleaford Mods are an English post-punk music duo, formed in 2007 in Nottingham. The band features vocalist Jason Williamson and, since 2012, musician Andrew Fearn. They are known for their abrasive, minimalist musical style and embittered explo ...
. Because of the track's political content, there was an initial reluctance from mainstream radio stations to play the track before the
2019 United Kingdom general election The 2019 United Kingdom general election was held on Thursday, 12 December 2019. It resulted in the Conservative Party (UK), Conservative Party receiving a Landslide victory, landslide majority of 80 seats. The Conservatives made a net gain of 4 ...
. However, the track was later championed by a number of
BBC Radio BBC Radio is an operational business division and service of the British Broadcasting Corporation (which has operated in the United Kingdom under the terms of a royal charter since 1927). The service provides national radio stations covering th ...
DJs, including punk innovator
Iggy Pop James Newell Osterberg Jr. (born April 21, 1947), known professionally as Iggy Pop, is an American singer, musician, songwriter and actor. Called the "Honorific nicknames in popular music, Godfather of Punk", he was the vocalist and lyricist of ...
. * In the ''
Criminal Minds ''Criminal Minds'' is an American police procedural crime drama television series created and produced by Jeff Davis (writer), Jeff Davis. The series premiered on CBS on September 22, 2005, and originally concluded on February 19, 2020; it was r ...
'' season 13 episode "The Bunker", the unsubs abduct women using the Doomsday Clock. * The '' Madam Secretary'' season 2 episode "On the Clock" features the Doomsday Clock, as the characters try to keep it from moving forward.


See also

*
Apocalypticism Apocalypticism is the religious belief that the Eschatology, end of the world is imminent, even within one's own lifetime. This belief is usually accompanied by the idea that civilization will soon come to a tumultuous end due to some sort of c ...
* ''The Bomb'' (film) *
Climate apocalypse A climate apocalypse (also called a climate dystopia and a climate-induced collapse, among other names) generally denotes a predicted scenario involving the global collapse of human civilization and potential human extinction as either a di ...
*
Climate Clock The Climate Clock is a graphic to demonstrate how quickly the planet is approaching 1.5 °C of global warming, given current emissions trends. It also shows the amount of CO2 already emitted, and the global warming to date. The Climate Clock ...
*
DEFCON The defense readiness condition (DEFCON) is an alert state used by the United States Armed Forces. (DEFCON is not mentioned in the 2010 and newer document) The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and spe ...
*
Doomsday device A doomsday device is a hypothetical construction — usually a weapon or weapons system — which could destroy all life on a planet, particularly Earth, or destroy the planet itself, bringing "doomsday", a term used for the end of planet Earth. ...
*
Eschatology Eschatology (; ) concerns expectations of the end of the present age, human history, or of the world itself. The end of the world or end times is predicted by several world religions (both Abrahamic and non-Abrahamic), which teach that negati ...
*
Extinction symbol The extinction symbol represents the threat of holocene extinction on Earth; a circle represents the planet and a stylised hourglass is a warning that time is running out for many species. The symbol dates to at least 2012 and has been attribu ...
*
Global catastrophic risk A global catastrophic risk or a doomsday scenario is a hypothetical future event that could damage human well-being on a global scale, even endangering or destroying modern civilization. An event that could cause human extinction or permanen ...
* ''Metronome'' *
Mutual assured destruction Mutual assured destruction (MAD) is a doctrine of military strategy and national security policy which posits that a full-scale use of nuclear weapons by an attacker on a nuclear-armed defender with second-strike capabilities would cause the ...
*
Nuclear terrorism Nuclear terrorism refers to any person or persons detonating a nuclear weapon as an act of terrorism (i.e., illegal or immoral use of violence for a political or religious cause). Some definitions of nuclear terrorism include the sabotage of a ...
*
Svalbard Global Seed Vault The Svalbard Global Seed Vault ( no, Svalbard globale frøhvelv) is a secure backup facility for the world's crop diversity on the Norwegian island of Spitsbergen in the remote Arctic Svalbard archipelago. The Seed Vault provides long-term stora ...
*
World Scientists' Warning to Humanity The "World Scientists' Warning to Humanity" was a document written in 1992 by Henry W. Kendall and signed by about 1,700 leading scientists. Twenty-five years later, in November 2017, 15,364 scientists signed "World Scientists' Warning to Humanity ...


References


External links

* *
''Bulletin of the Atomic Scientists''

Doomsday Clock homepage

Timeline of the Doomsday Clock
{{Doomsday Alert measurement systems Clocks Fear Nuclear warfare Political symbols Symbols introduced in 1947