Well 2012 has become hottest issue of discussions online and offline but i don't think so that earth is going to end on 2012 ya one thing is for sure that in other 50-60 years it can happen due to global warming and all. If Mayan calendar ends on 2012 it doesn't mean that it is also the end of the world. Mayan civilization peoples are also human like all of us and they are not GODS of this planet and without any strong and relevant proof we cannot say that this planet is going to end in 2012.
So enjoy your lives and stop polluting this planet and stop global warming, It is a strongest truth of life that we all have to die one or other day so why should we afraid of death, live life to the full and don't believe on such baseless talks.