lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

Earth's Long Term Future, You Decide

Thu Sep 19, 2002 8:19 am

Is it:

Mars (where we basically dry up to death)

-or-

Venus (where we end up boiling to death)


Aside from predicting our fates, how the heck do you think those planets ended up the way they are? What happened? We'll figure out Mars soon enough; but Venus; we can't really go there for obvious reasons...
The meaning of life is curiosity; we were put on this planet to explore opportunities.
 
KROC
Posts: 18919
Joined: Mon May 08, 2000 11:19 am

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 8:28 am

We have a shot at making Mars habitable. We will never be able to make Venus habitable.

As for how the planets ended up the way they are, thats mostly a mystery of the universe.
 
jessman
Posts: 1457
Joined: Sun Jul 08, 2001 1:11 pm

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 8:32 am

Mars may be very close to habitable now, it seems to just need some terraforming, you know some plants to facilitate gas exchange and such. Appearantly there is water on the planet in frozen form. It would be cold, but it could work.

Venus would be really hot, but I don't think it's really too much different than trying to go to mars. Again, we'd need to put some plants and such there to clean up the terrible atmosphere.

On both we would have to have domed cities or something similar to control climate for habitability.
 
H. Simpson
Posts: 933
Joined: Sat Mar 10, 2001 7:30 am

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 8:37 am

If you really want to see your future, chances are you probably will never see it. Living in mars or venus is probably something after me and you died.
 
lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 8:44 am

I guess what I meant was: Which future will Earth be like most, i.e., which planet will we become?

Mars is cold, and Venus is hot, I think if we could teraform one planet, it should be possible to do so to another or any celestial body, except stars, BH, etc. Heck doesn't our moon have oxides in its "soil"?

But how would one teraform Venus? Mars has a high percentage of CO2 which plants would love. Venus on the other hand has CO2 plus the intense heat of a runaway greenhouse effect, how does one reverse that? We could remove the heat by some chemical equivalent of a giant air conditioner, but I am not familiar with this stuff so I'll leave that to you guys/gals.
The meaning of life is curiosity; we were put on this planet to explore opportunities.
 
desertjets
Posts: 7588
Joined: Fri Feb 18, 2000 3:12 pm

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 8:58 am

The story of Venus, Earth and Mars is a lot like Goldilocks and the Three Bears.

Venus... a little too close to the sun so it would already be a little too hot. And there had to have been some event that triggered a major greenhouse gas.

Mars... a little too far from the sun and not enough mass and gravity to hold an atmosphere together. Without an atmosphere all the water (most of it) was allowed to evap.

Earth... just right. The seemingly right distance from the sun for liquid water to exist, enough gravity to hold an atmosphere and there was no event to offset the delicate balance that was created.
Stop drop and roll will not save you in hell. --- seen on a church marque in rural Virginia
 
lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 9:03 am

I'm guessing that we are "Golilocks", the "bears" are time, and Earth, Mars, & Venus may very well be the "poridge, chairs, and finally the bed"

am I right?
The meaning of life is curiosity; we were put on this planet to explore opportunities.
 
POSITIVE RATE
Posts: 2121
Joined: Sun Sep 16, 2001 11:31 am

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 4:52 pm

Mars can be terraformed and it's certainly nowhere near as unhospitable as Venus is. Venus is useless for future inhabitents- the temperature/pressure are just way to high. Mars on the other hand has temperatures roughly equivalent to Earths North and South polar areas and it has a thinner atmosphere. Mars contains water in frozen form at it's polar caps. One idea is to sprinkle black sun absorbing powder onto these polar caps so that they can melt and liquid water can come about. Then eventually trees and plants could be planted- although astronauts on mars would need shielding from solar radiation due to the planets very thin atmosphere.
 
DragonRapide
Posts: 133
Joined: Thu Sep 27, 2001 6:59 pm

RE: Earth's Long Term Future, You Decide

Thu Sep 19, 2002 8:03 pm

The answer to your question is very simple. Earth will become like Venus and then dissapear.
As the sun grows older in age and burn the last parts of her H, she will grow bigger and bigger. This will put the Earth closer to the Sun so Earth will become like Venus. Then the Sun will swallow the earth and all other planets, explode and implode.
That's a fact. But don't worry about it. Depending on estimates we still have a couple of hundred millions till 2 billion years to go before that happens.
Chances are bigger that not a trace of humanity is found on earth by that time than the chance of humans being there when it happens.
 
SInGAPORE_AIR
Posts: 11619
Joined: Mon Nov 13, 2000 4:06 am

RE: Earth's Long Term Future, You Decide

Fri Sep 20, 2002 12:26 am

We could turn more pro-environemntal and realise that we can't make money from saving the environment and deal with that problem and the problem of the environment.
Anyone can fly, only the best Soar.
 
POSITIVE RATE
Posts: 2121
Joined: Sun Sep 16, 2001 11:31 am

RE: Earth's Long Term Future, You Decide

Fri Sep 20, 2002 5:09 pm

The sun will indeed turn against us in the future. In 1 billion years time it will be approximately 10-15% hotter than it is now which means bad news for any inhabitants of Earth. 15% hotter= boiling oceans/greenhouse effect/NO life and then 2 billion or so years after that the sun will exhaust all of its Hydrogen supply, expand to a red giant and then finally shrink down to become a brown dwarf. Our sun will not go supernova as some other stars do simply because it is too small for that- it will however become a very small and insignificant Brown Dwarf.
 
godbless
Posts: 2680
Joined: Tue Apr 04, 2000 5:26 am

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 6:48 am

Thank God I have other problems  Wink/being sarcastic

Max
 
Lortab 7.5mg
Posts: 771
Joined: Fri Nov 02, 2001 2:13 am

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 6:51 am

 
lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 7:37 am

That lady can mean both. Either you care too much for the planet to the point that your kill yourself in order to stick it to those who don't care, or that not caring could have yourself in a bad situation.

Or the jpeg could have been altered.
The meaning of life is curiosity; we were put on this planet to explore opportunities.
 
jessman
Posts: 1457
Joined: Sun Jul 08, 2001 1:11 pm

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 7:52 am

Lephron; I think the real message there is that human (as opposed to animal or plant) intervention causes global warming; Humans pollute our environment with chemicals (other animals do not). Humans build enough nuclear bombs to kill all life on this planet. Humans chop down the tropical rain forest. Humans kill every plant. Humans caused the extinction of many animals. Humans overfish the oceans. Humans consume and do not replace; and humans do not seem to be willing to do anything at all to reverse this trend. Therefore the only way to truly save this beautiful flourishing planet Earth is to eliminate humans. Save the Planet; Kill yourself.
 
lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 8:27 am

But just because we kill ourselves does not mean something else will not evolve and redo what we undid.

Killing the inventor does not render the invention nonexistent. Eventually someone else will come along; can't keep killing everyone.

In terms of our planet future, despite what we've done, I don't think there is anything we can do in the short term that satisfies putting our energy into it. Everybody is an impatient "now now now results" person. Don't believe me? Look @ all the weight loss programs out there and see who they are aimed @?
The meaning of life is curiosity; we were put on this planet to explore opportunities.
 
srbmod
Posts: 15446
Joined: Tue Mar 20, 2001 1:32 pm

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 9:03 am

I see Earth's long-term future this way:

I know that may sound disturbing, but with well over 31,000 nuclear warheads in the arsenals of the five acknowledged nuclear powers, and who knows how many are in the hands of other countries. And add to this the fact that six "broken arrows" have yet to be recovered over the last 50+ years. Nuclear destruction is highly possible, and it may not come for many years, but it will eventually happen.
 
FDXmech
Posts: 3219
Joined: Sun Mar 19, 2000 9:48 pm

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 9:10 am

SingaporeAir: We could turn more pro-environemntal and realise that we can't make money from saving the environment and deal with that problem and the problem of the environment.

When you're hungry, have no roof over your head and your prospects are bleak, the environment is the last thing you care about.

Deforestation, overburdening natural resources whether renewable or finite, these are largely byproducts of societies whose people are living a hand to mouth existance. Big picture ideals such as a healthy clean planet mean little or nothing if you're not sure when the next meal or paycheck is coming.

Though it appears to me that a strong, vigorous economy is anathma (sic) to many environmentalists, it's mainly well off societies who actually have the option and wherewithal to care and actually improve our planets health, and they most definitely do.

I see this every day, even in unexpected places like KEWR, environmental regs and procedures are increasingly stringent. Anyone who thinks otherwise, should actually get out into the world. There has been a marked improvement over the past several decades in many measurable and visual areas of the environment.
You're only as good as your last departure.
 
brianhames
Posts: 743
Joined: Tue Feb 15, 2000 2:22 pm

RE: Earth's Long Term Future, You Decide

Wed Sep 25, 2002 10:15 am

Earth's long term future? Just read the Book of Revelations...

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