The Mayan had predicted it. There are lots of doomsday theories doing the round which back this up. The date given is 21st December, 2012, the winter solstice. Scientists and astronomers, however, do not see any impending calamity to cause the 'apocalypse'. They term all the apparently scientific reasoning to substantiate the 'end of the world' and New Age phenomena as pseudo-science. You can read more details at Wikipedia (2012 Phenomenon). I hope you also watched the movie - '2012'!
But what if the scientists confirm that the world is indeed going under in 2012. How would we react and behave? Read on.