Alien826
No religious beliefs
Biden could be right about this.
Great loss of land due to seas expanding,
coping with higher temperatures, massive
population relocation. Nuclear war, if it
happens, could be to a limited extent.
And then there's the question of certainty
vs likelihood.
And some things that we might not have considered fully. Like animal "pests" migrating north, and from a recent news item some kind of fungus disease being seen further north than before.
You are right about certainty vs likelihood. An all out nuclear war, we have been told, would cause a nuclear winter that would wipe out most life forms on the Earth. But that seems unlikely (not impossible) these days, and something like Iran nuking Israel and Israel responding is more worrying.
Climate change on the other hand is in my opinion almost certain to happen. Finally we have moved out of the denial stage, and are now applying the "lets see how much we can do and still get elected" method. It could have been handled by progressive steps years ago, maybe, but now it's got to the stage where really drastic measures are necessary, and given that the typical human can't think far beyond next week there will always be something else to worry about. Yes, we should not give up, but I fear we are f****d.