Last month, the "Doomsday Clock" was moved up to 89 seconds, the closest the world has ever been to total annihilation. The Bulletin of Atomic Scientists, based at the University of Chicago, uses the clock as a metaphor to show how close the planet is to reaching human extinction.

It was a small change, but a frightening one. Last month, the "Doomsday Clock" was moved up to 89 seconds, the closest the world has ever been to total annihilation. The Bulletin of Atomic Scientists,

Conservation strategies are turning back the doomsday clock in threatened Florida-Scrub Jays – but not without caveats, a new study published in Current Biology shows.

In the mid- 80s, as the newly appointed chair of Barry Jones’s Commission for the Future (an organisation that brought together scientists, pollies and the public in the hope of better long-term policies),

We really like the look of this clock. Honestly, with those uniform tics around the edge, it sort of reminds us of the doomsday clock — you know, the ‘minutes to midnight’ quarter clock face ...