It means absolutely nothing.
comparing apples to oranges, is what comparing Mars to Earth is.
completely different atmospheres(for now).
completely different distances from the sun.
one has life that actively effects the environment, the other most likely does not.
completely different planet sizes
completely different temperatures, which has a large effect on the maximum threshold of causing environmental damage(what life would go extinct on mars from climate change anyway?).
completely different environmental and atmospheric processes
Mars doesn't have an Ozone layer, Earth does(for now).
Mars doesn't have an H2O cycle, that is similar to Earth's.
and Mars probably doesn't have microorganisms that are responsible for its atmosphere, and balancing of its environment.
The ice melting on Mars, may be composed mostly of CO2, which has a far different melting point than the ice on Earth, composed of H2O. Compare an ice cube melting to a chunk of dry ice melting. how long does it take the CO2 to become vapor vs the ice cube, at the same temp and B. pressure? does that say anything to you?
it should. at the very least, it should tell you that CO2 requires far less energy to become vapor than ice(H2O), which makes the ice melting on Earth vs the Ice melting on Mars a very innacurate estimate of the intentisty of warming.
so how can CO2 becoming vapor on Mars allow someone to predict that Mars is warming as fast as Earth?
your guess is as good as mine.
http://marswatch.tn.cornell.edu/jgr_co2.html
The ice compose of H20, may not even be ice at all, but hydrogen bonded to chemical components of the soil.
if you read this article, you will notice that they are only detecting Hydrogen, and assuming it to be bonded with oxygen, creating water.
http://science.nasa.gov/headlines/y2002/28may_marsice.htm
with that in mind, remember from freshman chemistry class, how weak hydrogen bonds are.
It also appears to me, that they are almost guessing that the ice is melting from global warming, on Mars.
2007-06-02 14:03:49
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answer #1
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answered by jj 5
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Exactly. Mars is simply too different to act as a decent proxy for Earth. Even if it were showing signs of a global trend, we wouldn't be able to glean anything from it since Mars' atmosphere is simply so antithetic to here, and the Martian climate is subject to a whole different set of variables than we are. For example, the recent warming on Mars is attributable mainly to a decrease in Martian dust storms in the southern hemisphere (where the only observed warming is occurring) due in part to variations in the planet's orbit.
Of course, the fact that the sun is the only connecting thread between Mars and the Earth makes the Red Planet even less useful to us when looking at Earth's climate. According to research done by the Max Planck Institute, there hasn't been an increase in solar irradiance since the the 1940's, which all but rules out the sun as a source for the recent warming.
2007-06-02 14:44:44
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answer #2
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answered by SomeGuy 6
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Most of the planets/moons are not warming. So it's not the sun warming things in general.
Scientists here measure the sun all the time and know increased solar radiation is not the main reason for global warming. It is about 10% of it.
http://solar-center.stanford.edu/sun-on-earth/FAQ2.html
http://www.globalwarmingart.com/wiki/Image:Climate_Change_Attribution.png
NASA believes dust storms on Mars are the cause of Mars heating.
http://www.space.com/scienceastronomy/070404_gw_mars.html
The urban heat island effect has been considered by scientists and, because of the numerical data (not "logic") rejected as a cause of global warming.
http://gristmill.grist.org/story/2006/10/26/224634/48
For more about Mars:
http://www.realclimate.org/index.php?p=192
2007-06-02 05:25:31
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answer #3
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answered by Bob 7
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Well, well, well...too true, too true. ;)
I like your picture, but, yeah I don't see how Mars has anything to do with the earth. It's a completely different planet. It's farther away from the sun, has no atmosphere like you said, and no human being has ever even been to Mars.
So, how can we know everything about this planet all of a sudden if we've never actually been there and studied it more closely? I would expect us to know much more about our own planet (seeing as we live on it), however, we don't even know everything, albeit a lot, about our own planet!
I mean, think about it, skeptics.
2007-06-02 08:20:49
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answer #4
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answered by Anonymous
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The northern hemisphere on earth is warming at a much higher rate than the southern hemisphere. I have seen articles that say mars is warming because of storms which have made the surface darker thus absorbing more light. The northern hemisphere is where much of the populated landmass of the earth is located, many new roads and parking lots are built with black asphalt and concrete. Has anyone considered that we are warming the same way as mars, an overall darker and therefore more heat absorbent surface?
2007-06-02 04:51:48
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answer #5
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answered by Darwin 4
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Isn't it amazing that Mars is heating up too but the so called experts can come up with numerous causes other than solar activity. Yet here on earth, there is only one cause for global warming:
The United States!
Do you get it yet?
.
2007-06-02 06:55:21
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answer #6
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answered by Jacob W 7
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This warming stuff is messing with your mind. Now you are talking about Mars!? Give me a break. The temperature gets a little warm and people freak out. I would like to know how we can know with any certainty the temperature 100+ years ago. We are talking about to the hundredth of a degree here.
2007-06-02 05:05:51
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answer #7
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answered by en tu cabeza 4
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That's a classic Association Fallacy, you're pulling at straws to substantiate an invalid argument.
2016-04-01 11:24:36
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answer #8
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answered by Michele 4
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Actually, what I heard NASA say is that Mars IS warming globally an that it IS due to the recent increased solar output over the last few decades.
If that weren't the case, then I guess you would have to conclude that mankind is now overheating MARS as well.
2007-06-02 04:33:47
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answer #9
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answered by Daniel T 4
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simple
global warming is happening
but it is not man caused
and it is because of the sun\
either that
or the martians better stop driving those SUVs
2007-06-02 05:12:38
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answer #10
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answered by Anonymous
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