The Doomsday Clock is a symbol which represents the likelihood of a man-made
The Clock's original setting in 1947 was seven minutes to midnight. It has been set backward and forward 23 times since then, the smallest-ever number of minutes to midnight being two (in 1953 and 2018) and the largest seventeen (in 1991). As of January 2018, the clock is set at two minutes to midnight, due to "the looming threats of nuclear war and climate change.”
The Doomsday Clock's origin can be traced to the international group of researchers called the Chicago Atomic Scientists, who had participated in the
The Bulletin's Clock is not a gauge to register the ups and downs of the international power struggle; it is intended to reflect basic changes in the level of continuous danger in which mankind lives in the nuclear age...
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
The 5th Doomsday Clock Symposium was held on November 14, 2013, in Washington, D.C.; 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
"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 included nuclear threats, climate change, bioterrorism, and artificial intelligence. Members of the board judge Midnight by discussing how close they think humanity is to the end of civilization. In 1947, during the
The two tied-for-lowest points for the Doomsday Clock have been 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 2 minutes 30 seconds in 2017. Discussing the change to 2½ minutes in 2017, the first use of a fraction in the Clock's history, Krauss, one of the scientists from the Bulletin, warned that our 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 we still can. In January 2018, the Clock was lowered further to 2 minutes to midnight, meaning that the Clock's status today is tied for closest to midnight since the Clock’s start in 1947.