The world will actually never end. Only change. We are simply star stuff, made from molecules that were once in something else, and in time, we change back into the dust we were made from. We have no influence on a universal scale, and like the dinosaur, our day will one day come and we will be no longer.
As for being enslaved by a one world government, we already are. We don't know it, because we have been told we are free. Nobody is more hopelessly enslaved, than those who falsely believe they are free.
Have you ever asked yourself why you pay interest on borrowed money the banks don't even have to give you? Or why you pay for land your forefathers fought to own outright? Every institution is inheritly corrupt becuase an institution exits for its own benefit, not for the benefit of the people. Governments exist to oppress people, not help them. If a government helped people, and solved problems, they would not achieve their own personal goals. Bush and Cheney made boat loads of money on one of many BS wars, in a long line of BS wars. Not the first one, nor the last. The price unfortunately will now be paid by US taxpayers and the dead have already lost everything.
The real criminals in this world are not thugs carrying sawed on shotguns wearing bandanas. They are rich, mostly white men who wear $10k suits, drive in bentleys and go to church on Sunday. They are the people we chose to elect, chose to run our education systems, religious systems, corrupt money systems, and we follow them like sheep on the pretense they operate for the good of the people. They do not.
Those who question this human system of power and corruption are quieted, and those who rebel and succeed eventually turn into what they fought in the first place. The human weakness of selfishness, inherit in each and every person.