The Mayan apocalypse: What it is (or probably isn't)What it actually means: The Mayan Calander will end on the 21st of December 2012. No Mayan prophecy has ever actually predicted the end of the world, but this hasn't stopped people from forming their own conspiracies. Just time for a new calender, is all.
How it will happen: The top three suggestions are death by solar storm followed by starvation, the collapse of financial systems and disease, death by comet unseen, death by planetary alignment.
Should I be worried: Absolutely not. That said, given the increase in natural disasters over the years, it doesn't help to keep a small, sensible amount of supplies so that if your town floods you don't have to fight off panicked masses in the supermarket.
And don't forget the beer and scotch whiskey or whatever you need.