LOL okay, now serious. There is nothing that could destroy the planet and life on it in a matter of one year. no planet/asteroid, no unusual activities inside Earth. the global warming will last years too, and this surely wont cause the end of all lives.
Second, the Mayan Calendar is made before the leap 년 is made. Therefore, for the Mayans December 21, 2012 is already over. We've passed it (Mayans). If the leap 년 is not made, it should be mid-2013 의해 now..
probably not but were gona see alot of crazy stuff happen in the 다음 3 years.im talkin earthquakes,solar storms,freaky weather,and so on.the earth is going 2 go thru some crazy changes.