The End of the World as We Know it

It seems that mankind has a never ending thirst for rumors and speculation about the end of the world.  Since we are the only species on this planet that can contemplate our own existence and see that it has a possibility to not continue it should seem odd that we're perpetually dispelling such myths.  My wife and I enjoy a good disaster flick, Independence Day for example, but man has been fascinated about this topic since long before the motion pictures came along to give it special effects.
Why is it that we can't seem to put an end to such speculation?  The minute one deadline passes (like Y2K), another pops up (like 2012).  The minute one crisis is averted (Nuclear Winter) another comes to the fore (Global Warming).  What is it about humanity (in general) that ensures that such speculation always finds an audience?
The answer is relatively simple.  Because we are aware of our own personal existence, and because we have reasonable concerns about what will happen to us when we die, we seek out comfort and hope through religion (or philosophy) to assure us that it will be ok.  For Christians, we have our hope in Jesus Christ, a hope that is secure and a promise that we can count on.  Others may find some comfort in the Eight-Fold Path or the Five Pillars (Buddhism and Islam), but they won't find the Hope that can quite the anxiety of their hearts.
This quest for assurance, and fear of the future is simply writ large when it comes to humanity as a whole.  Millions of people throughout the world are hopelessly looking for some sort of answer to their own personal need and as such are willing to listen to those who predict an end to this struggle even if it means that they begin to believe that we are all doomed (at least that would solve their problem too).  Each time one of these false doomsayers is proven false, another pops up with a "new" scenario to find ever willing listeners.
By the way, it's a waste of time to argue the folly of such ideas, the improbability of them actually adds to the appeal (When logic and reasoning haven't led to answeres, people will embrace the illogical and the unreasoned)
What does the future hold?  How will this world end?  Take a look at Revelation if you want the visions that the Apostle John saw, just don't ask me to explain all of them.  There is at least one thing that I'm confident to say I understand about those future prediction though: "'Now the dwelling of God is with men, and he will live with them.  They will be his people, and God himself will be with them and be their God.  He will wipe every tear from their eyes.  There will be no more death, or mourning, or crying, or pain, for the old order of things has passed away."