Re: 2012
...learn your facts before you start talking.
What will happen is that the interior rotation of the earth's liquid core will change direction, causing a reversal of the earth's magnetic poles.
There is no earth shattering whatever, so person, stop being stupid, not everything dies.
The danger however, is that during the transition from one side to the other, our magnetic field will be f***ed up and radiation levels on earth are going to rise a significant amount.
We aren't all gonna die, it's just gonna be interesting.
Even then, it's still going to be a good 5k years at least.