‘Doomsday Clock’ moves closer to midnight over threats from nuclear weapons, climate change and AI

Earth is closer than it’s ever been to destruction as Russia, China, the U.S. and other countries become “increasingly aggressive, adversarial, and nationalistic,” a science-oriented advocacy group said Tuesday and advanced its “Doomsday Clock” to 85 seconds till midnight. The Bulletin of the Atomic Scientists cited risks of nuclear war, climate change, potential misuse of biotechnology and the increasing use of artificial intelligence without adequate...