As for climate change, scientists acknowledged "public awareness of the climate crisis grew over the course of 2019, largely because of mass protests by young people around the world".
The time on their so-called Doomsday Clock has been moved backwards and forwards over the years as a metaphor for how close to catastrophe we are.
"It is 100 seconds to midnight".
This year the Bulletin released a 5000-word statement, a press release with bolded capital letters ("IT IS NOW 100 SECONDS TO MIDNIGHT") and held an hourlong press conference with The Elders, a group of influential global leaders including Ban Ki-moon, former UN Secretary General ("my frightening sense of what is happening in this world without any governance structures of global disarmament of nuclear weapons") and former UN High Commissioner for Human Rights and past president of Ireland Mary Robinson ("we ask world leaders to pull humanity back from the brink").
"At a time when world leaders should be focused on the clear and present dangers of nuclear escalation and the climate emergency. we are instead witnessing denial, disregard and unsafe brinksmanship", former United Nations secretary-general and deputy chair of The Elders Ban Ki-moon said.
Not to be a doomsday sayer or anything, but really, we need to get our act together or we are going to go the way of the dinosaurs.
The closer we are to "midnight" on the clock, the worse off we are.
The decision was made by the group's science and security board following a year in which man-made threats to humanity, such as nuclear proliferation and climate change, were hastened by moves away from global cooperation, she said.
It was created in 1947, and at that point, the greatest danger to humanity came from nuclear weapons, in particular from the prospect that the United States and the Soviet Union were headed for a nuclear arms race. He added that governments across the globe have normalized a unsafe world in terms of the risks of nuclear warfare and climate change.
"We are now expressing how close the world is to catastrophe in seconds - not hours, or even minutes", says Bulletin President and CEO Rachel Bronson. "Today we feel no more optimistic". It remained unchanged in 2019, and is now at two minutes to midnight. Let us know your thoughts in the comments.
The clock has been reset dozens of times since its debut in 1947.
Ban said that from the USA withdrawal from the 2015 Paris climate agreement and the Iran nuclear deal to deadlock at nuclear disarmament talks and divisions in the UN Security Council, "our mechanisms for collaboration are being undermined when we need them most". That arms control agreements should be signed to reduce the threats'.
This year, the bulletin moved the clock 20 seconds, and we are now just 100 seconds to midnight. Previously, the closest position was 2 minutes to midnight, which the clock was set to first in 1953 (following the USA and then-Soviet Union's hydrogen bomb tests) and then again in 2018, amid world leaders' failure to appropriately address global warming and other humanity-threatening political and environmental issues.