what do you mean by 'world is ending'? is it your personal world, your life and the people in it? is it the way of life that your society has? is it the natural environment and it's ability to support life? the man-made environment and it's function in housing society? or are you talking more about a meteor hitting the earth and all life ends? this whole 'end of the world' thing is just too ill defined. no, there is no god or jesus coming to wipe out man kind and giving the self righteous the satisfaction of being right and seeing everyone else who ever disagreed burning and dying. but yes, the natural environment can be stressed to the point of breaking from our pollution at which point, our way of life may come to an end. but that just means a new way of life will be adapted, and society continues.
If you were to believe in the mayan calendar, I will believe in Microsoft windows calendar, on my PC the date cuts off in 2099, I'll be just fine with that date. And no, it won't end, it will end my society going crazy and having civil wars, but the world won't just end like that.
yes it will end one day. everyone thinks that it will end this december. this is not true. NASA has scientifically concluded that there will be no asteroids or meteors hurling towards the earth. don't worry.
There are millions of asteroids and black holes out there with trajectories we have not mapped out, and any one them could take us out--either directly or indirectly--with very little or no notice. This planet could end today or it could go on for billions of years after our Sun burns out, but the fact is it will eventually end. We should all live like it is our last day to enjoy life--because it might be.