The world will end when the globalization hits 100% of efectiveness. What happens is that with globalization the world is getting smaller and smaller, and when it hits 100%, the internet will be on everyone's houses, people will comunicate, a terrorist group (myself included) will make friendship with the security managers of all credit card companies headquarters and the TWE building, and explode those buildings when there's noone on them.
Everyone's credit record will go back to zero, the internet will colapse, the third world war will happen, humankind will be annihilated, the continents will merge again, the ice poles will melt, and the world will be ruled by sea monsters. The world we once knew has ended.
Of course that this is all speculation, the theory of chaos is the only 100% true theory at all times.. Everything is unpredictable.