100 seconds to midnight

The Doomsday Clock on Thursday ticked down to 100 seconds to midnight, symbolizing the greatest level of peril to humanity since its creation in 1947 as the threat posed by climate change and a growing nuclear race loomed large.

The danger level was compounded by information warfare and disruptive technologies ranging from deepfake video and audio to the militarization of space and the development of hypersonic weapons.

“We are now expressing how close the world is to catastrophe in seconds - not hours, or even minutes,” said Rachel Bronson, president of the Bulletin of the Atomic Scientists, in announcing the change. The decision on the clock is taken by panels of experts, including 13 Nobel laureates.

It was originally set at seven minutes to midnight, and the previous worst -- two minutes to midnight -- held from 2018 to 2019 as well as 1953. The furthest it has ever been is 17 minutes, following the end of the Cold War in 1991.

On the nuclear front, the arms control boundaries that helped prevent catastrophe over the last half century are being dismantled and may be gone by next year, said expert Sharon Squassoni.

This includes the demise in 2019 of the Intermediate-Range Nuclear Forces (INF) Treaty, with the US and Russia entering a new competition to deploy once banned weapons. The US has suggested it won’t extend New START, an arms reduction treaty signed in 2010. And despite initial hopes, North Korea and Iran crises are escalating. 

On climate, two major UN summits fell dismally short of the action required to limit long-term warming.

“We ask world leaders to join us in 2020 as we work to pull humanity back from the brink,” said Mary Robinson, chair of The Elders leadership group and former president of Ireland.

“Now is the time to come together -- to unite and to act.”