Is this a serious question?
Even the mayans disnt believe the world was going to end in 2012. That's simply when the calendar rolls over, which is supposedly followed by five years (iirc) of cleansing, then another age. They believed this has already happened four times, none of which ended the world (obviously). From what I've seen, it's only a very few people that actually believe the "prophecy," but the media decided to make a huge deal out of it anyway which is why everyone keeps talking about it.