Scientists are moving the hands of the "Doomsday Clock" closer to midnight -- amid increasing worries over climate change and nuclear weapons.
The clock estimates how close humans are to nuclear annihilation and it is now set at two minutes to midnight.
The Doomsday Clock is now the closest it has been to midnight since 1953, when the first hydrogen bomb was tested.
"The year just past proved perilous and chaotic, a year in which many of the risks foreshadowed in our last Clock statement came into full relief," Dr. Rachel Bronson said a statement on the scientists' behalf. "In 2017, we saw reckless language in the nuclear realm heat up already dangerous situations and re-learned that minimizing evidence-based assessments regarding climate and other global challenges does not lead to better public policies."