What will really happen on 21st december 2012?

Nothing different is going to happen on december 21st 2012. I don't know what part of the world you live on, but "war and lots of anger, famine, and m death from natural disasters and war" are very common things on Earth, so that doesn't sound out of the ordinary. The Mayan calendar did not predict the end of the Earth in 2012, that's simply when they stopped making calendars for future years. The Sun is blank of sunspots because they are on 11 year cycles, and estimates say they will begin showing this year.