The Doomsday Clock is a symbol which represents the likelihood of a man-made global catastrophe.
Maintained since 1947 by the members of the Bulletin of the Atomic Scientists' Science and Security Board, the Clock represents an analogy for the threat of global nuclear war.
In 2017, world leaders failed to respond effectively to the looming threats of nuclear war and climate change, making the world security situation more dangerous than it was a year ago—and as dangerous as it has been since World War II.
The greatest risks last year arose in the nuclear realm. North Korea’s nuclear weapons program made remarkable progress in 2017, increasing risks to North Korea itself, other countries in the region, and the United States. Hyperbolic rhetoric and provocative actions by both sides have increased the possibility of nuclear war by accident or miscalculation.
Read more at: https://thebulletin.org/2018-doomsday-clock-statement