Human extinction : Choose the way we go.

[Evolved]

All of the adults on the planet have sex simultaneously and throw the orbit of the Earth off track, and we spin wildly out of the solar system.  We all freeze, of course, but not until we spend some time under the covers trying to keep warm.  I guess this is the final big bang.

[susangail]

I'm going for the ironic ending:

A group of fundies invents a highly contagious virus to "cure" homosexuality.
However, due to a random evolutionary mutation in the virus, and an accidental release from the lab, it ends up turning everyone gay.
The human race dies out in one generation due to lack of procreation.

... but as the end nears there will be FABULOUS parties!!!
(plus, designer coffins and urns will be all the rage)

Ok, I'm done,
JoeActor

Hahahahaha! I love it!! Oh the irony!!

[Loffler]

Nearby supernova. The destructive radiation would reach as at the same time as the light, so we'd never even see it coming.

You read right. The entire Earth could be destroyed instantly, before astronomers even saw it coming.

[afreethinker30]

All of the adults on the planet have sex simultaneously and throw the orbit of the Earth off track, and we spin wildly out of the solar system.  We all freeze, of course, but not until we spend some time under the covers trying to keep warm.  I guess this is the final big bang.

You have to admit this would be a fun way to go!I wonder would there be something to cause all of this sex?Maybe a group of terrorist plant what they believe to be deadly nightshade berries (cheaper then arsenic) ,but turns out to be a harmless aphrodisiac.

[Tom62]

I would love to see the Vogon Destructor Fleet demolish the Earth to make way for a new interstellar bypass.

[tornado]

I would love to see the Vogon Destructor Fleet demolish the Earth to make way for a new interstellar bypass.

"There's no point in acting all surprised about it. All the planning charts and demolition orders have been on display in your local planning department on Alpha Centauri for fifty of your Earth years, so you've had plenty of time to lodge any formal complaint and it's far too late to start making a fuss about it now."

[MariaEvri]

I would love to see the Vogon Destructor Fleet demolish the Earth to make way for a new interstellar bypass.

and later on find out that it wasn't needed after all.

[karadan]

I'd like to think that the humans could all leave the earth in relatively good condition so that nature could take hold again. I'd feel really bad if a human created cataclysm takes all animal and plant life with it. Animals do not deserve that

[Asmodean]

I'd like to think that the humans could all leave the earth in relatively good condition so that nature could take hold again. I'd feel really bad if a human created cataclysm takes all animal and plant life with it. Animals do not deserve that

Of course, most animals will surely die as a result of two of those scenarios and probably die as a result of the remaining one, but as long as life itself survives, in time the Earth will probably be inhabited again, maybe by creatures more advanced than us.

[afreethinker30]

Dinosuars cloned to walk the earth again.Eating every human in reach until we are all gone.Then and only then will Jesus come back!Why you ask....to ride them of course.

Bill Hicks
      “A lot of Christians wear crosses around their necks. You think when Jesus comes back he ever wants to see a f*&#ing cross? It's like going up to Jackie Onassis wearing a rifle pendant.”

[Steve Reason]

Planet collision, Black hole, or Tom62's scenario.