Fun fact: it’s pretty much impossible to get those bodies down and there’s not really anywhere to bury them on the mountain so they’re literally laying pretty much wherever they died. They call that section of the mountain “Rainbow road” because of the multi-colored winter coats of the corpses you have to walk past to get to the summit.
The doomsday clock is symbolic with the minutes (or seconds) to midnight symbolizing how close we are to doomsday. Traditionally, that has meant nuclear war, but I believe more recently, they’ve factored in climate change