Hah, you made me think of the future with regards to this fool. Why do I see a future where amongst all the chaos and destruction of a big climate-induced disaster, the headline "Mark Zuckerberg and his family have reportedly retreated into his doomsday bunker" will appear...

I thought the bunker is only a rumor, but DDGing it, it's "rumor" that's been covered in many news outlets, so, I'm guessing it's real although the news outlets might have some details wrong.