As a species - about 1 billion years, if a stray asteroid doesn't wipe us out first.
As a planet - Current research seems to speculate that the Earth will not be devoured by the Sun, (when it becomes a red giant), but will slowly move it's orbit away from the Sun.
Still in about 7 billion years, the Earth will be nothing more than a cold lump of rock in a cold and boring Solar System
The earth doesnt end in 2012, no one knows when its going to end
mayan calender is a mith
probably
Yes.
Is the world really going to end
no
Everyone will die.
only God knows when the world is going to end . non religious answer: only time will tell.
The world is most likely to end when you and I are no longer alive.
IN BILLIONS AND BILLIONS OF YEARS
In about 8 billion years
No