The Doomsday Clock was was furthest away at 17 minutes to midnight in 1991. The clock now stands two minutes to midnight. These include the decision a year ago to withdraw from the Paris Climate Accord, and the administration's disparagement of the Iran nuclear deal.
The Bulletin was founded by United States scientists involved in the Manhattan Project, which developed the world's first nuclear weapons during World War Two.
The Doomsday Clock was first introduced in 1947 to represent a threat of man-made global catastrophe or nuclear war. For over 70 years, the science and academic society has used it as an unofficial barometer to evaluate how the planet is effected by developments in fields like technology, politics, climate change, and worldwide conflict.
It's the closest to the symbolic point of annihilation that it has been since 1953, during the Cold War.
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The hands did not move especially close during the Cuban Missile Crisis of 1962, moving to seven minutes.
Among the group's recommendations for turning back the clock is for President Donald Trump to "refrain from provocative rhetoric regarding North Korea", said Sharon Squassoni, board member of the Bulletin Science and Security Board.
That the US and Russian Federation are engaged in nuclear arms control talks and both are upgrading their arsenals has, in the view of the scientists, increased global risk.
The last time the clock showed humanity this close to total and utter annihilation was 1953, shortly after the US made a decision to pursue the hydrogen bomb, a weapon far more powerful than any atomic bomb, according to the Bulletin's timeline. "The time for the citizens of the world to demand such action is now", the group that was founded by some of the scientists who helped build the first nuclear weapons said in their annual assessment.
What is the Doomsday Clock?
The organisation wrote on their website: "The failure of world leaders to address the largest threats to humanity's future is lamentable-but that failure can be reversed". A new arms race is heating up, the group said, one that will be expensive and could lead to "accidents and misperceptions" - putting us that much closer to our undoing. "But when that person is the new president of the United States, his words matter".