what is non-religious? most (and i believe all) religions explain what happens to you after you die... in that case my religion is that i go into the ground and i rot... there... that's religious right?
You don't nessecarily have to be "religious" per se to believe the end of the world is coming.
All you have to be is extremely superstitious (which is the origin of religion). However, most people that are conciously agnostic or atheist are not superstitious.
There is no logical reason to suppose that the world is ending anytime soon. Even if there were, there's little that worrying about it is going to accomplish.
The end of the world is gonna be fun. I can't wait for the party. I think it's gonna be fun, Because I am a bhuddist, and I will come an eternal light in the sky, even if there is no one to look at me and try to figure out why i'm there...