As NASA states, no, it will not end. You might be very worried (I'm more worried than you XD) that the 21st of Dec. would be the last time to play Black Ops 2, well, you are still able to play it. Earth has been in good condition for more than 4 billion years. Most of the trusted information is from NASA or CNN. If you're still worried that the world will end, please visit to these links:
http://www.nasa.gov/topics/earth/features/2012.html
http://www.youtube.com/watch?v=QY_Gc1bF8ds
http://lightyears.blogs.cnn.com/2012/12/12/nasa-science-prepares-for-the-not-end-of-the-world/?hpt=hp_t3
There's more...
I am still having a fun time at school and at home, and you should too! Get your mind off of 12/21/12 and just enjoy your life! Be with your friends, play Black Ops, and keep dreaming about a good future.
Q. Did the movie '2012' start the END OF THE WORLD rumors?
A. No.The Mayan Calender End started rumors, but again, the world is not ending.
Q. Many websites say that the world will end. Is that true?
A. NASA has the same answer as me, the websites you are getting that info from are not true.
[HUMOR]
Set: Night Time
Date: Dec 21, 2012.
BOB: Ahhh... a nice warm night.
*looks at sky, sees large white planet*
OH S--T NIBURU IS HEADING TOWARDS US.
*tells neighbor*
THE WORLD IS GONNA END. NIBURU WILL HAVE A COLLISION COURSE TOWARDS EARTH!!!
NEIGHBOR: That's the moon idiot.
BOB: Oh.
So just remember, the world will not end. Even if your friends say it will, ignore them.
Happy Holidays!!!