Will the world end in 2012?

Yes, I believe the world will end in 2012. First, the Mayan calender gives a potential date for the world ending on December 21, 2012. On December 21, it's said there will be a mass destruction caused by a massive planet that will strike earth. This mass destruction will kill all living things on planet earth; causing nothing to survive. Also, others believe that the earth is slated for another ice storm which is another reason for nothing to survive.
Another reason I believe the world will end in 2012 is because Nasa has predicted many different observations about the sun. They predict there will be an increase of sunspots and sun flares in 2012. A polar reversal will cause the north to become the south and the sun to rise in the west. After this happens, earthquakes will shatter, massive tidal waves will occur, and volcanoes will erupt.
One last reason I believe the world could end is according to astronomers, billions of years from now, the sun will become a red giant, expanding to a size larger than the Earth's orbit and consuming Earth in the process. Even though this says it may happen in billions of years from now, you never know when it could happen. Even if the planet somehow survives, the sun will eventually shrink, becoming a white dwarf and gradually cooling off until it can no longer warm anything in the solar system.
Although scientists and astronomers predict bad things may happen, we could be able to stop this process because of all the observations and technology today. All scientists have many different observations about the world ending in 2012, but hopefully soon, somebody can come up with a way to save our earth.