Not zombies. Not another ice age. Not rising oceans. Not a pandemic. Not global warming. Not a cooling sun. Not an asteroid. Not an alien attack. Not nuclear war.
Earth is going to end with the judgment of God. He's real, He's angry, and He won't put up with sin forever.
At the same time the entire creation (known also as the universe) will roll up as a scroll, so an escape to Mars or anywhere else on a space ship will be futile.
This prediction is more sure than anything else that anyone is saying who is being paid six or seven figures for that opinion.
Both free range or caged hens could care less.