Doomsday clock hits 90 seconds to midnight as world gets closer than ever to “global catastrophe” CBS NewsThe Doomsday Clock reveals how close we are to total annihilation CNNThe Doomsday Clock Is Closer to Catastrophe Than Ever Before TIMEOpinion: The Doomsday Clock is ticking — clock’s hands move closest ever to midnight and catastrophe CNN‘Doomsday Clock’ moves closest ever to midnight Yahoo News