Doomsday Clock warns humans are trending closer to catastrophe at 85 seconds from midnight. Here's what to know.
The Doomsday Clock highlights rising nationalistic tensions worldwide.
A rapid transition away from fossil fuels could help slow down the Doomsday Clock as it edges closer to midnight. View on ...
What is the Doomsday Clock? Atomic scientists say we're closer to midnight than ever before - It is now 85 seconds to ...
USA TODAY asked Alexandra Bell, the president and CEO of the Bulletin of the Atomic Scientists, a few questions about the ...