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Strange future; what live will looks like in 75000000 AD
Topic Started: Apr 2 2010, 02:30 PM (2,435 Views)
janlor Apr 2 2010, 02:30 PM Post #1
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Adolescent
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we speak about an earth in 750000000

first, conditions will change:
-sun will be 7.5% larger, brighter and hoter
-the day will probably will have lenght of 31 hours
-the ocenas will be slowly vaporising
Edited by janlor, Apr 2 2010, 02:38 PM.
my projects:

Romeo 5
http://s1.zetaboards.com/Conceptual_Evolution/topic/3108148/1/ 2 creatures presented!

alien-like earth
http://s1.zetaboards.com/Conceptual_Evolution/topic/3223527/1/

The New Humans
http://s1.zetaboards.com/Conceptual_Evolution/topic/3253024/1/

Feliearth
Feliearth

Few jokes:
addition to fashion: fasism
why two Stiupid SNAIADIAN CHILDS WAS KISSING Because they observed they pet kahydrons and wants to have baby
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Pando Apr 7 2010, 11:00 PM Post #31
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Obey or I'll send you to the moon
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I believe that humans are extinction proof. Soon we will have the technology to terraform entire worlds, we will survive.
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Canis Lupis Apr 7 2010, 11:05 PM Post #32
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Dinosaurs eat man, woman inherits the Earth.

 Well, in the long run, humanity might survive elsewhere in the cosmos. But, on Earth, humanity is doomed with a capital D. With our sun's expansion and the danger of NEOs and the danger of nuclear bombs and the danger of biological warfare, etc, we are Doomed on Earth. And I highly doubt that we'll establish a permanent colony on Mars or even our own moon before we ultimately destroy ourselves.

It might be misanthroic, but it seems likely to me.
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Pando Apr 7 2010, 11:08 PM Post #33
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I agree, humanity is doomed if they stay on Earth. But if we get off we will survive.
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colddigger Apr 7 2010, 11:09 PM Post #34
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Joke's over! Love, Parasky
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I think that we will easily develop the technology to manipulate entire stars within the next million years.
Oh Fine.

Oh hi you! Why don't you go check out the finery that is SGP??

v Don't click v
Spoiler: click to toggle

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Pando Apr 8 2010, 12:10 AM Post #35
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But that'd be too risky. How about just get all the energy from a star?
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Holben Apr 8 2010, 03:14 AM Post #36
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 That'd involve igniting it, yes? We're doomed.

We will have unimaginable tech in the next few thousand years, if we survive. The further you go, the less accuracy you have.
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
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janlor Apr 10 2010, 01:56 PM Post #37
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this topic is about the earth in 750MYF not about posibilites of human extinction
my projects:

Romeo 5
http://s1.zetaboards.com/Conceptual_Evolution/topic/3108148/1/ 2 creatures presented!

alien-like earth
http://s1.zetaboards.com/Conceptual_Evolution/topic/3223527/1/

The New Humans
http://s1.zetaboards.com/Conceptual_Evolution/topic/3253024/1/

Feliearth
Feliearth

Few jokes:
addition to fashion: fasism
why two Stiupid SNAIADIAN CHILDS WAS KISSING Because they observed they pet kahydrons and wants to have baby
Offline Profile Quote Post Goto Top
 
Canis Lupis Apr 10 2010, 03:32 PM Post #38
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Dinosaurs eat man, woman inherits the Earth.

 Yes, but like we said, speculation into 750MYF, while you are free to do that, is pretty much impossible to predict.

It will be unrecognizable. No mammals, no birds, no chordates, no mollusks, no arthropods, just simple life. If life survives.
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Pando Apr 11 2010, 12:03 AM Post #39
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why no chordates or arthropods in 750 million years future? They survived the last 500 million years, and the only major arthropod groups that went extinct were trilobites and eurypterids, all others never died. How about we could start in 100 million years, then 250, then 400, then 600, then finally 750, going generation by generation? It would be possible, although extremely inaccurate. But we could still try.
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Holben Apr 11 2010, 02:26 PM Post #40
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Rumbo a la Victoria

 What would they eat? Thanks to the death of plants, energy transfers would fall apart from the bottom. Unless they got protist-size and ate microbes.
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
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Forbiddenparadise64 Sep 6 2010, 09:09 AM Post #41
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Holbenilord
Apr 6 2010, 08:24 AM
Hang on, source location time-


Quote:
 

Present day- human induced mass extinction
500 MYH- extinction of plant life
515 MYH- loss of oxygen atmosphere
1 BYH- sterile earth.
(New scientist)

See? One billion years.
I remember that issue. But it's was written by peter ward, who is known for being pessimistic and depressing, especially in future evolution and his book on how the earth will die proves. And canis's estimate is even more pessimistic, I'd estimate 800-1000 million years for animal life and at least 2 billion for microbes. Sorry I had to update this guys :;S:
Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new

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Holben Sep 6 2010, 09:12 AM Post #42
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Rumbo a la Victoria

 2 billion?
But how?

Well, i found stuff.
Quote:
 
Within the next 600 million years from the present, the concentration of CO2 will fall below the critical threshold needed to sustain C3 photosynthesis: about 50 parts per million. At this point, trees and forests in their current forms will no longer be able to survive.[41] However, C4 carbon fixation can continue at much lower concentrations, down to above 10 parts per million. Thus plants using C4 photosynthesis may be able to survive for at least 0.8 billion years and possibly as long as 1.2 billion years from now, after which rising temperatures will make the biosphere unsustainable.
...Once the solar luminosity is 10% higher than its current value, the average global surface temperature reaches 320 K (47 °C). The atmosphere will become a humid greenhouse leading to a runaway evaporation of the oceans.[49] At this point, models of the Earth's future environment demonstrate that the stratosphere would contain increasing levels of water. These water molecules will be broken down through photodissociation by solar ultraviolet radiation, allowing hydrogen to escape the atmosphere. The net result would be a loss of the world's sea water in about 1.1 billion years from the present.
...The loss of the oceans could be delayed until two billion years in the future if the total atmospheric pressure were to decline.
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
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Dragon wasp Sep 6 2010, 10:13 AM Post #43
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Sliversaurus
Apr 2 2010, 02:56 PM
Its impossible to predict past 200-300 million years future. And you don't know how many mass extinctions took place in that time (750 MYF), and the Cambrian explosion was only 570 million years ago, animal life itself is around 700 million years old.

And you could of just said 750 MYF instead of 750000000.
nothing is impossible.

:P
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Forbiddenparadise64 Sep 6 2010, 10:20 AM Post #44
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Dragon wasp
Sep 6 2010, 10:13 AM
Sliversaurus
Apr 2 2010, 02:56 PM
Its impossible to predict past 200-300 million years future. And you don't know how many mass extinctions took place in that time (750 MYF), and the Cambrian explosion was only 570 million years ago, animal life itself is around 700 million years old.

And you could of just said 750 MYF instead of 750000000.
nothing is impossible.

:P
Yeah, but if something is incredibly hard to do, and I mean INCREDIBLY HARD, as in the chances are 1 in a trillion, than you can probably discredit it as impossible. If I was an alien visiting Earth 750 million years from now, I wouldn't even hope of predicting even remote predictions, because the time given is so massive. You'd need either time travel, or a mass extinction on the scale of snaiad's to even hope of predicting it.
Prepare for the Future Walking with the future: Allozoic (pts 4-6)http://s1.zetaboards.com/Conceptual_Evolution/topic/3252142/14/#new

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Holben Sep 6 2010, 10:35 AM Post #45
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Rumbo a la Victoria

 Seeing as most of evolution is down to the chance beneficial mutation, there is room for randomness in natural selection.
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
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