The Doomsday Clock has been used to examine the world’s vulnerability to global catastrophe for nearly a century.

The Doomsday Clock, which represents how close humanity is to the end of civilisation, has been moved one second forward to 89 seconds to midnight - the closest it has ever been

The Bulletin of the Atomic Scientists shifted the hands of the symbolic clock to 89 seconds to midnight, citing the threat of climate change, nuclear war and the misuse of artificial intelligence.