CNN

The Doomsday Clock reveals how close we are to total annihilation

Sign up for CNN’s Life, But Greener newsletter. Our limited newsletter series guides you on how to minimize your personal role in the climate crisis — and reduce ...
CNN

Doomsday Clock 2025: Scientists set new time

Sign up for CNN’s Life, But Greener newsletter. Our limited newsletter series guides you on how to minimize your personal role in the climate crisis — and reduce ...