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#127 Sep 26 2012 at 7:23 AM Rating: Good
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rdmcandie wrote:

Quote:
Global Atmospheric Cooling due to Increase in CO2 Content
Increase in CO2 content leads to global cooling of atmosphere. This paradoxical, at first
sight, conclusion can be inferred from the adiabatic theory of heat transfer. To compare
the temperature characteristics of a planet at various compositions of its atmosphere, one
can use Eq. (11).
If one assumes that the existing nitrogen–oxygen atmosphere of Earth is replaced
entirely by an imaginary carbon dioxide atmosphere with the same pressure of 1 atm
and adiabatic exponent Ë› D 0:1428, then the value of b
Ë› D 1:597
0:1428 D 1:069 and the
near-surface temperature would decline to 281.6 K. Thus, the atmospheric temperature
would decreases by 6.4
ı
C, instead of increasing according to the traditional theory.
Constructing the distributions of temperature in the carbon dioxide atmosphere, one
should take into consideration the fact that for the same pressure the corresponding
elevation above sea level is lower than that for the nitrogen–oxygen atmosphere of
Earth: h.CO2/ D h.N2 C O2/  29=44, where h is the elevation, and 29 and 44 are
the molecular weights of nitrogen–oxygen and carbon dioxide atmospheres, respectively.
Such temperature distributions are shown in Figure 1. In this figure, the graph of temperature distribution for the carbon dioxide troposphere lies below the graph of distribution
for the nitrogen–oxygen atmosphere. Thus, the near-surface temperature for the carbon
dioxide atmosphere is 6.4
ı
C lower than that for the nitrogen–oxygen atmosphere and not
considerably higher as some scientists continue to believe. Therefore, the accumulation
of carbon dioxide in great amounts in atmosphere should lead only to the cooling of
climate, whereas insignificant changes in the partial pressure of CO2 (few hundreds of
ppm) practically would not influence the average temperature of atmosphere and the
Earth’s surface.
Similarly, if one assumes that the existing carbon dioxide atmosphere of Venus is
entirely replaced by the nitrogen–oxygen atmosphere at the same pressure of 90.9 atm,
then its surface temperature would increase from 735 to 796 K. Thus, increasing the
saturation of atmosphere with carbon dioxide (despite its radiation absorbing capacity),
with all other conditions being equal, results in a decrease and not an increase of
the greenhouse effect and a decrease in average temperature of planet’s atmosphere.


As for Venus. its included in the last paragraph.




http://ruby.fgcu.edu/courses/twimberley/EnviroPhilo/CoolingOfAtmosphere.pdf
So you're in agreement that CO2 emissions are changing our atmosphere?
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#128 Sep 26 2012 at 7:24 AM Rating: Decent
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Jophiel wrote:
rdmcandie wrote:
There has been 5 or 6 years of studies that claim the opposite, again what is your point.

Smiley: laugh


I am beginning to think you don't know what my issue is.
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#129 Sep 26 2012 at 7:24 AM Rating: Good
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Jophiel wrote:
Right. The only issue with using a right wing think tank funded by oil companies for your climate science needs is that they might not agree with me.
They'd never have an agenda.
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#130 Sep 26 2012 at 7:25 AM Rating: Default
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Elinda wrote:

So you're in agreement that CO2 emissions are changing our atmosphere?


Yes it is cooling our atmosphere.

Edited, Sep 26th 2012 9:25am by rdmcandie
#131 Sep 26 2012 at 7:28 AM Rating: Excellent
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rdmcandie wrote:
I am beginning to think you don't know what my issue is.

It's entirely possible.
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#132 Sep 26 2012 at 7:59 AM Rating: Decent
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Jophiel wrote:
rdmcandie wrote:
I am beginning to think you don't know what my issue is.

It's entirely possible.


Well I find the human element to be quite over exaggerated, probably the worst thing humans have done to the heating/cooling of the planet is deforestation. CO2 isn't the reason but it sure makes a good sound byte when you want to add in CO2 caps, or Auto Emissions restrictions.
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#133 Sep 26 2012 at 8:08 AM Rating: Excellent
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Ah, well, now that I understand you: Smiley: laugh
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#134 Sep 26 2012 at 8:20 AM Rating: Good
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Samira wrote:

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Plants give off water through tiny pores in their leaves, a process called evapotranspiration that cools the plant, just as perspiration cools our bodies. On a hot day, a tree can release tens of gallons of water into the air, acting as a natural air conditioner for its surroundings. The plants absorb carbon dioxide for photosynthesis through the same pores (called stomata). But when carbon dioxide levels are high, the leaf pores shrink. This causes less water to be released, diminishing the tree's cooling power.


So the cause is higher than normal CO2 levels. The effect is the diminishing of the cooling we get at normal CO2 levels. Saying plants are to blame is a bit, well, wrong.


It's a moot point anyway. The cooling effect is localized. It's like saying air conditioners can cool the planet. Air conditioners don't remove heat from the system they just move it around. In fact, they generate heat. In the case of plants all they're really doing is taking heat from the plant, transferring it to the water and letting it evaporate and float off somewhere else with said heat.

The only way to remove heat from the earth is to radiate it out into space in various forms of radiation. Greenhouse gasses slow that process like a blanket. There is currently no feasible way to cool the earth all we have right now is prevention.

Edited, Sep 26th 2012 10:20am by Yodabunny
#135 Sep 26 2012 at 8:23 AM Rating: Excellent
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I think candie needs to believe humans have nothing to do with it because somehow they'll take his pot away from him. Or something.

god, please tell me you're stoned
#136 Sep 26 2012 at 8:46 AM Rating: Decent
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Nadenu wrote:
I think candie needs to believe humans have nothing to do with it because somehow they'll take his pot away from him. Or something.

god, please tell me you're stoned

Hell, even I've never been *that* stoned.
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#137 Sep 26 2012 at 8:47 AM Rating: Default
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Nadenu wrote:
I think candie needs to believe humans have nothing to do with it because somehow they'll take his pot away from him. Or something.

god, please tell me you're stoned


Nope not stoned. Just waiting for the evidence to actually back up the claims. As it is, there is no empirical proof that humans are the cause of climate change, CO2 is not causing Global Warming, which means us nasty emitters are not causing it either. The Earth has actually been slowly cooling over the past decade. The IPCC predictions are not remotely close (based on their 2007 models they have more coming in 2013) in some cases their data is out .2-.4 degrees. Maybe we are the cause of Global cooling, because CO2 is actually responsible for cooling atmospheric temperatures, which eventually play on surface temperatures.

But ya, until they can say without doubt that it is humans ill continue to disagree that we are the cause of the warming. But in order to do that they will have to first disprove things such as Oceanic Heating, The Sun warming up (which has already been confirmed so hard to disprove).

I don't buy into the fact that we are causing global warming, at least not in the popular sense. The worst thing we do to our climate is deforestation, which rarely gets a side bar notation in the Alarmists handbooks.
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#138 Sep 26 2012 at 8:48 AM Rating: Good
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rdmcandie wrote:
Jophiel wrote:
rdmcandie wrote:
I am beginning to think you don't know what my issue is.

It's entirely possible.


Well I find the human element to be quite over exaggerated, probably the worst thing humans have done to the heating/cooling of the planet is deforestation. CO2 isn't the reason but it sure makes a good sound byte when you want to add in CO2 caps, or Auto Emissions restrictions.


You do realize that deforestation affects the CO2 cycle by reducing the outtake from the system, right? It doesnt particularly matter for this particular point whether you have more trees or lowered emmissions, but the net change in the system is what affects atmospheric heat exchange.
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#139 Sep 26 2012 at 8:49 AM Rating: Decent
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Well, which do you want? Evidence, or proof? Coz there's a metric shit-ton of the former.
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#140 Sep 26 2012 at 9:09 AM Rating: Good
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Yodabunny wrote:
Samira wrote:

Quote:
Plants give off water through tiny pores in their leaves, a process called evapotranspiration that cools the plant, just as perspiration cools our bodies. On a hot day, a tree can release tens of gallons of water into the air, acting as a natural air conditioner for its surroundings. The plants absorb carbon dioxide for photosynthesis through the same pores (called stomata). But when carbon dioxide levels are high, the leaf pores shrink. This causes less water to be released, diminishing the tree's cooling power.


So the cause is higher than normal CO2 levels. The effect is the diminishing of the cooling we get at normal CO2 levels. Saying plants are to blame is a bit, well, wrong.


It's a moot point anyway. The cooling effect is localized. It's like saying air conditioners can cool the planet. Air conditioners don't remove heat from the system they just move it around. In fact, they generate heat. In the case of plants all they're really doing is taking heat from the plant, transferring it to the water and letting it evaporate and float off somewhere else with said heat.

The only way to remove heat from the earth is to radiate it out into space in various forms of radiation. Greenhouse gasses slow that process like a blanket. There is currently no feasible way to cool the earth all we have right now is prevention.

Edited, Sep 26th 2012 10:20am by Yodabunny


Well, sequestering or deflecting input energy works. Storing solar energy in a non heat form can change atmospheric variables to an extent where they affect the heat venting rate. Solar shades can directly limit the heat input, but are generally undesirable for reasons I won't get into here.
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#141 Sep 26 2012 at 9:27 AM Rating: Decent
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Timelordwho wrote:
Well, sequestering or deflecting input energy works. Storing solar energy in a non heat form can change atmospheric variables to an extent where they affect the heat venting rate. Solar shades can directly limit the heat input, but are generally undesirable for reasons I won't get into here.


Key word is feasible. Sequestering isn't even close to an option, same with solar shades. Deflection could be accomplished by lacing the atmosphere with reflective particles but who here likes breathing silver?
#142 Sep 26 2012 at 9:37 AM Rating: Default
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Debalic wrote:
Well, which do you want? Evidence, or proof? Coz there's a metric shit-ton of the former.


I want both because I want to see how they derived at the conclusion.

As of today the theory is such.

Over the last 250 years the planet had been heating up more rapidly than we have seen in historical records. The only change we have observed is the Industrial Revolution. So it must be humans burning fossil fuels!

Meanwhile the Sun has had several periods of heating. If the Sun gets hotter it would makes sense that we would as well. I mean its not like humans are spewing CO2 into the Martian atmosphere, yet it has been gradually warming up just like us!. The best part, we know the sun has been heating up over the last decade or so, and our friendly Odyssey Satelite on Mars has observed the great CO2 Ice Cap diminish since 2002.

But then again it could be the wobbles of the planets axis that occur every 20,000 years or so. Which times just about right with the expected mini Ice Age due in the next 10-20 years. It has been about 20,000 years since our last mini Ice Age, and we are now about half way through our interglacial period according to historical data.

Of course, those are just crack pot theories. Obviously 250 years worth of burning fossil fuels is the reason. I mean heck its not like burning trees for industry for the previous 25,000 years of our existence didn't release CO2. (which would mean something is CO2 was actually contributing to the heating of the planet anyway.)

Of course in 2009 the US and UK governments decided that we aren't privy to certain tid bits of information. Not to mention detailing how the hockey stick graph was cooked up. According to 50% of their source information heating actually stalled around 1960....yet somehow that data appears to be ignored. (Climategate look it up).


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#143 Sep 26 2012 at 9:41 AM Rating: Excellent
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gbaji wrote:
No. It's considered a current working theory, or model, for the area in question. Facts and data are wholly different than theories and models. Amazing how often people mix them up though.


Good lord, why do you think I used terms like pretty much and put 'fact' in quotations? Smiley: tongue

There's a point it doesn't matter from a practical point of view. World is round (or a flattened sphere, whatever...), Imatinib inhibits tyrosine kinase activity causing apoptosis, world is slowly warming...

gbaji wrote:
But in this case, anyone who does is called the kinds of names being tossed my way in this thread. All because I disagree with the argument that it's "settled science". Surely you can see how this is problematic. I hope you don't think that this forum is the only place where that sort of attack goes on.


Viewing with skepticism is fine, but there's a point the field moves on. As problematic as it can be it's necessary for the field to advance. There's a lot of things in my own field that we've moved on from before I considered them 'settled science.' Some of these things got settled later on.

There's always a place for 2nd tier scientists, newly minted PhD's and the like, in refining and ironing out the wrinkles in old theories. Something may turn out to be wrong. A theory that people accept as universal, may only be true in a limited scope, etc. etc. The best labs won't take the time to iron out the wrinkles in their own theories, a lot of times there isn't as much money in it. You don't stay ahead of the field by doing those kinds of things.

Realistically though, once a working theory (there I used your words) has been established it takes a lot of contradictory science to overturn it. It takes a lot more work on convince a reviewer. The science has to be better than other studies. Many times the best you get out of this is a publication in a backwater journal and funding difficulties. But hey, I'm guessing you already knew that, it's not unique to climate science by any means, and has more to do with human nature IMO.

gbaji wrote:
No. The difference is that those other fields do not have an international organization created specifically to push forward an agenda based on the absolute assumption that a given conclusion within that field is true, and which primarily serves the function of pressuring governments into compliance and to discredit any scientist who dares to disagree with that assumed conclusion. The fact that you refer to anyone who questions their conclusions as "lawn chair scientists" speaks volumes about how this has affected your own perception of the issue.


Right, because I don't have to deal with bodies like the NIH or anything? Certainly they don't have an agenda... Smiley: rolleyes

"Lawn chair scientists" refers to people like you and me sitting here debating this topic. Neither of us are climate scientists, hence the term. I don't recall the last time a couple of people sat around on a forum discussing whether using MSMS ion intensities to improve the quantitative aspect of spectral count values was valid or not. If they did, would someone who published a paper on the topic take them seriously? Probably not.

gbaji wrote:
The question you should be asking yourself is why it even enters your mind that someone shouldn't have a say (or a stake) in this at all.


Fine, but there still needs to be a point where 'non-experts' such as ourselves, politicians, etc. come in second to people who are actually doing the work in the field.

gbaji wrote:
]Good. When "getting anything done" means implementation of policies that have a lot more to do with damaging the US economy than with actually doing anything about the problem, then we should put the brakes on. Hard.


The scientists, not the politicians who use their theories to further their own agendas. I don't like the way these things get a knee-jerk reaction from the liberal left either, it can be just as damaging as an entrenched skeptic with their head in the sand.

gbaji wrote:
stuff

stuff

stuff

And at the end of the day, it's not really the science people are bothered by, but the political agenda being pushed based on that science.

more stuff

dear god more stuff? Smiley: eek

okay I'm done reading this...


I concur, it bothers me too. Which is partly where my stance with rdm earlier came in. Well that and my opinion the 'global warming' crowd doesn't have the support needed for drastic change, just like the 'anti-abortion' crowd is a long way from outlawing the procedure.

Lets say we're projecting a 1.5 - 4 degree increase temperature for the U.S. over the next 100 years or so. What does that mean, what are the consequences, and how to we address the issues that's going to cause? Let the scientists play with their theories, and give the rest of us something concrete to work with.

Edited, Sep 26th 2012 8:42am by someproteinguy
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#144 Sep 26 2012 at 9:44 AM Rating: Good
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rdmcandie wrote:
Elinda wrote:

So you're in agreement that CO2 emissions are changing our atmosphere?


Yes it is cooling our atmosphere.

Edited, Sep 26th 2012 9:25am by rdmcandie
What makes this article about CO2 having an over-all cooling effect more convincing than all about CO2 warming the atmosphere? In general the green house effect is not really disputed.

Are there any dire consequences to atmospheric cooling?
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#145 Sep 26 2012 at 9:46 AM Rating: Excellent
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rdmcandie wrote:
I want both because I want to see how they derived at the conclusion.

Well, there are literally hundreds, if not thousands, of studies out there so you can't complain for lack of data.

Quote:
(Climategate look it up).

Ok

Also, ok.


Edited, Sep 26th 2012 10:47am by Jophiel
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#146 Sep 26 2012 at 9:46 AM Rating: Good
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Jophiel wrote:
so you can't complain
Ha.
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#147 Sep 26 2012 at 10:00 AM Rating: Default
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Jophiel wrote:
rdmcandie wrote:
I want both because I want to see how they derived at the conclusion.

Well, there are literally hundreds, if not thousands, of studies out there so you can't complain for lack of data.

Quote:
(Climategate look it up).

Ok

Also, ok.


Edited, Sep 26th 2012 10:47am by Jophiel


Data is not Fact. Data can lead to fact, but it is not fact. So once again the lack of proof makes the evidence irrelevant. Or in other words, the Evidence does not support the theory.

Also to your links again whats your point? The hockey stick graph has already been phased out, they have a new graph with new parameters. Like adding in the Medival Warm Period and the Little Ice Age which were not present on the initial Its humans get them! Graph. (ironically enough the "new" hockey stick graph shows us merely returning to pre mini ice age temperatures.)


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#148 Sep 26 2012 at 10:10 AM Rating: Excellent
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rdmcandie wrote:
Data is not Fact. Data can lead to fact, but it is not fact.

For someone who keeps stomping his feet and demanding things, you're incredibly unwilling to show any initiative. Which doesn't bother me; it's pretty much the answer why I'm not wasting my time trying to educate you so that's a win for me, I guess.

Quote:
Also to your links again whats your point?

To laugh at you for pulling out "OMG Climategate! Look it up!" as a talking point. You really need to work on your reading comprehension.
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#149 Sep 26 2012 at 10:13 AM Rating: Excellent
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rdmcandie wrote:
Data is not Fact. Data can lead to fact, but it is not fact.

No, it's literally fact.

da·ta
   [dey-tuh, dat-uh, dah-tuh]
noun
1.
a plural of datum.
2.
(used with a plural verb) individual facts, statistics, or items of information: These data represent the results of our analyses. Data are entered by terminal for immediate processing by the computer.
3.
(used with a singular verb) a body of facts; information
#150 Sep 26 2012 at 10:20 AM Rating: Default
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Elinda wrote:
rdmcandie wrote:
Elinda wrote:

So you're in agreement that CO2 emissions are changing our atmosphere?


Yes it is cooling our atmosphere.

Edited, Sep 26th 2012 9:25am by rdmcandie
What makes this article about CO2 having an over-all cooling effect more convincing than all about CO2 warming the atmosphere? In general the green house effect is not really disputed.

Are there any dire consequences to atmospheric cooling?



Well I guess you could call an Ice Age a negative effect. As the Atmosphere cools the surface temps eventually cool as well. Glaciers will slowly return and parts of oceans might freeze over. The freezing of oceans and lakes would result in a reduction to CO2 production, which means after a few thousand years CO2 levels will be to low to effectively keep the planet cool. Then the atmospheric temperature begins to rise, and eventually the surface temperature rises, and presto back to good ol temperate Earth for another 20,000 years or so.

Its the natural cycle, that is if you assume that any of our climate research is actually reliable. It has happened many times in the 400,000 years of data we have from the Volstok Ice Cores. When you view the temperature changes with CO2 you see the trend, as the planet begins warming CO2 is at a low, when it begins cooling CO2 is at a high.

If anything our continued contribution to CO2 will only speed up the process, which is actually kind of evidenced in the history of Ice Ages over the last 400,000 years. Heck each preceding Ice age had similar CO2 as we have today, yet had higher temperatures associated with them. Id feel safer saying humans are speeding up cooling, as opposed to speeding up heating.

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#151 Sep 26 2012 at 10:24 AM Rating: Excellent
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rdmcandie wrote:
Debalic wrote:
Well, which do you want? Evidence, or proof? Coz there's a metric shit-ton of the former.


I want both because I want to see how they derived at the conclusion.


I'm feeling generous, and not wanting to hone my non-existant programming skills atm.

Here's a list of citations from the Historical Overview portion of the IPCC's report. If nothing else by reading those papers you should have a general idea of why they came to the conclusions they did.

Here's their summary outline if you don't have that kind of time.

Edited, Sep 26th 2012 9:28am by someproteinguy
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