Having a debate Friday on 2012, I need a little help?

The following is a question being asked on Yahoo Answers. Both the questions and answers given do not reflect the view of our website.

Question:
I am on the debate team for my high school and we are having a debate about 2012, I know, I don’t pick the topics. I went through Yahoo answers and looked at all the 2012 questions, (And there are ALOT), I also went to a couple links that people had and to NASA’s website. I stayed away from google, I made that mistake and I stayed off youtube, just because I can make a video saying that I am the next big thing and put it on there. I am on the side that is saying its not going to happen. I am listing my argument, will you please tell me if I am missing anything or if I have some wrong information? Thank you

1. Niberu doesn’t exist, if it did we would see it.
2. The Mayan Calendar does not end, it’s just ending a cycle.
3. The alignment happens every year.
4. Solar flares have no direct effect on humans, only on radio and other communication devices.
5. There have been predictions before this and there are actually predictions after 2012 about the end of the world.
6. Polar shifts take thousands of years to happen, and it would only mess up our compasses.
7. The sun heats up and cools down every 11 years.

Please tell me if I missed something or if I have some wrong information. Thank you.