Doomsday clock ticks 30 seconds closer to midnight

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This is closest the clock has been to midnight since the height of the Cold War in 1953. (Carolyn Kaster/AP Photo)

A panel of scientists and scholars said Thursday they believe the world is as close as it has ever been to a so-called doomsday scenario.

The Bulletin of Atomic Scientists, which has been tracking the threat posed by nuclear weapons and other technologies since the 1940s, moved the second hand forward on their Doomsday Clock forward closer to its symbolic apocalyptic midnight.

"It is with considerable concern that we set the time of the 2018 doomsday clock and offer a plea to rewind the doomsday clock," said Bulletin of Atomic Scientists President and CEO Rachel Bronson. "As of today, it is two minutes to midnight."

The board pointed to ongoing nuclear provocations from North Korea and the United States' response - specifically the "unpredictability in statements and tweets by the President of the United States," according to Bronson.

The last time the clock was so close to midnight was in 1953, the year both the United States and Russia exploded hydrogen bombs, when the U.S. and the Soviet Union were engaged in a nuclear arms race.

In 2017, the board moved the clock from three minutes to midnight, to two and a half minutes to midnight, due in part to rhetoric by then-incoming President Donald Trump. Climate change was also a significant factor in the decision.

The furthest the clock has been from midnight is 17 minutes in 1991.

Chicago's Museum of Science and Industry is currently running an exhbit on the Doomsday Clock called Turn Back the Clock. The exhibit is included in general admission to the museum.

Copyright 2018 Cable News Network. Turner Broadcasting System, Inc. All Rights Reserved. ABC News and WLS contributed to this report.
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politicsu.s. & worldnuclear weaponsdonald trumpPresident Donald Trumpkim jong un