The end of the world and humanity. Your theories?
While you think about this, enjoy the beautiful destruction:
- 09 December 2011 - 10:27 AM
- 09 December 2011 - 10:45 AM
Don't worry, I won't be doing that anytime soon.
- 09 December 2011 - 11:40 AM
Also I am saddened that the thread title wasn't a song title from REM.
- 09 December 2011 - 02:36 PM
This post has been edited by Carcharocles: 09 December 2011 - 02:41 PM
- 09 December 2011 - 02:41 PM
... That is a really crazy thing that is mildly making me freak out. Damn...
But 100 years is good, no way I will have to worry too much.
Unless we learn how to keep people alive longer... then it will be my problem.
Oh My God.
- 09 December 2011 - 02:48 PM
Our oceans produce the majority of the oxygen on our planet. This oxygen comes from plankton blooms. An anoxic event is where oxygen producing plankton blooms die. This causes both a lack of oxygen in the oceans, and the atmosphere. Sounds really nasty, doesn't it? Well, I'm about to make it worse.
The oceans, at some point during the events will go stagnant. At that point, the entire ocean will emit hydrogen sulfide, which is mildly toxic. That's right--our atmosphere would be mildly poisonous. Not pretty, of course. Anoxic events contributed to several past mass extinctions, including the one in the Mesozoic (you know, the one that "killed off" the dinosaurs).
Now to really fuck with you, we're already seeing signs of this happening. Jellyfish blooms and oceanic dead zones are believed to be key indicators, and they're both popping up in the oceans. To top it off, we have the hunting of "keystone predators" in the ocean, mass oceanic polluting, and the now much stronger evidence for globing warming and climate change. These could very well lead to an anoxic event, and with all of them together being major problems right now the outlook isn't really good.
I can imagine, if it does happen, that oxygen would suddenly become more valuable than gold. We would probably try to save ourselves by creating biodomes or other controlled environments. However, as much as Hollywood would like you to believe otherwise, these artificial environments are not as self sustainable as we would want them to be. Migrating to other planets wouldn't be a choice, because we are nowhere near that level of technology.
This post has been edited by Carcharocles: 09 December 2011 - 03:14 PM
- 09 December 2011 - 03:11 PM
Though if I was forced to pick I would choose super volcano eruption. Yellowstone is suppose to explode soon. Actually it was already suppose to.
- 09 December 2011 - 04:31 PM
Another one to think about would be nuclear winter, which would cool off the planet significantly and threaten agricultural production. This could be caused by nuclear war, a large asteroid impact, or massive volcanic eruptions. Still, there would probably be a few survivors left somewhere on the globe.
The human species has been through a couple of these events already, e.g. the population bottleneck of some 70,000 years ago.
- 09 December 2011 - 05:08 PM
Edit: now that's a couple of typos I never thought I'd make.
This post has been edited by Carcharocles: 09 December 2011 - 05:12 PM
- 09 December 2011 - 05:11 PM
- 09 December 2011 - 05:18 PM
- 09 December 2011 - 05:21 PM
War itself has never even come close to exterminating the global population. There are always survivors.
The after-effects of war, maybe, but that would probably require an extensive nuclear war, and I don't think anyone really wants to go down that path, even those countries developing nuclear weapons.
- 09 December 2011 - 05:35 PM
I wouldn't put it past North Korea, if they ever get the delivery method figured out. They crazy.
- 09 December 2011 - 07:05 PM
- 09 December 2011 - 07:33 PM
- 09 December 2011 - 09:01 PM
- 09 December 2011 - 09:05 PM
Nuclear war? Fallout shelters.
Super volcano? Doesn't effect enough people.
Something else I forgot? Probably survivable.
- 09 December 2011 - 09:46 PM
Directly. Its indirect effect would be very similar to the concept of nuclear winter.
- 09 December 2011 - 10:03 PM
Which we could totally survive.
Go team human
Also cockroaches, I guess go them too.
- 09 December 2011 - 10:24 PM
For a nuclear winter event, I am rather badly placed, living in the middle of Canada. ^_^
- 10 December 2011 - 12:33 AM
- 10 December 2011 - 02:14 AM
... I /hope/ it ends in that kind of divine intervention that many religions speak of. And I want to be there to see it. I think of it this way: I'm going to die one way or another. Why not an awesome way like seeing the end of the world in the very definitely final battle (could be a trope...) of time between good and evil?
There will always be that looming threat that the earth could end at any moment. But to dwell on it would be unwise.
And Bourbon, I want the world to make that sound effect, too.
I have to wonder what I'd do at the end of the world.
This post has been edited by Lux Aeterna: 10 December 2011 - 02:35 AM
- 10 December 2011 - 02:30 AM
In case I was there I guess I'd just ponder the chances of survival and if it really was the last show I'd just grab a soda and watch it.
- 04 September 2012 - 07:06 AM
- 04 September 2012 - 03:58 PM
I assume you mean the red giant phase of the sun's life cycle? True, that will not happen for another five billion years. But the earth will begin to feel the effects of changes in the sun quite a bit sooner than that. In a mere billion years, the sun will be about 10% brighter than it is now, and that will be sufficient to cause runaway evaporation of the oceans. Much of the hydrogen will eventually be permanently lost to space.
Another consequence of increased solar luminosity is a higher weathering rate of silicate minerals, which will cause a decrease in the level of carbon dioxide in the atmosphere. In perhaps 600 million years or so, carbon dioxide levels will fall too low for plants using C3 carbon fixation to continue photosynthesis. Even plants using C4 photosynthesis will eventually die off as well, thus they will stop producing the oxygen necessary for animal life to survive.
So, humanity has roughly half a billion years to get off this rock, or change the earth's orbit so that it orbits farther from the sun. The flip side is that the solar system's habitable zone will expand, thus some of the icy moons (e.g. Europa or Enceladus) may become habitable in the distant future.
Uh, large asteroids (over 5 km in diameter) hit the Earth on average about once every 10 million years. That does pose somewhat of a threat to humanity!
This post has been edited by wacko: 04 September 2012 - 04:27 PM
- 04 September 2012 - 04:25 PM
One can hope that humanity will survive at least another 1000 years.
- 05 September 2012 - 03:37 AM
Just kidding, in all seriousness, I'd say we'd destroy ourselves with the amount of nukes the US and Soviet Union built during the Cold War.
But that's just my theory.
- 05 September 2012 - 04:52 AM
It'd be quite a feat for our species to make itself extinct in only a thousand years. Whatever humans may do to themselves or their environment in that time, you can likely count on a few survivors somewhere.
Still, evolution may eventually solve the problem. After all, nothing says that humans must become more intelligent...
- 05 September 2012 - 05:19 AM
A. takes most of the solar system with it
B: leaves the solar system in total darkness with no warmth for any form of life, thus we could possibly freeze to death.
It's just me, though.
- 06 September 2012 - 10:34 PM
- 07 September 2012 - 12:08 AM