The Doomsday Clock moved 30 seconds closer to midnight due to a year of cavalier talk about the use of nuclear weapons and inaction on climate change and other global threats.

Rachel Bronson, executive director and publisher of the Bulletin of the Atomic Scientists, announced Thursday that it is now two-and-a-half minutes to midnight. She said two factors played into the decision: loose talk about nuclear weapons and the continued discrediting of expert analysis.

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