co2=green house gas, meaning it retains heat within the climate system that otherwise would go to space.
How does it do that? It is true that CO2 absorbs IR radiation, but it immediately emits precisely the same amount of energy and it emits it in a wavelength that is to long to be absorbed by another CO2 molecule. This absorption and emission is happening at the speed of light. Once the energy is emitted, it is again on its way at the speed of light.
Where is the retention of heat, how is it retained, and what law of physics supports the claim?
Increase co2=retain more heat within the system. Less energy going to space with the same amount going to earth=surplus of energy within the climate system. This idea is a case in point below inside of the " ".
Retain it where? CO2 can't retain it. CO2 only absorbs and immediately emits it. It can't be emitted down towards the earth because the EM field propagated by the earth is stronger than the field propagated by the atmosphere and as a result, all energy flow is in the direction of the field propagated by the stronger field. No energy can go against the current unless you can prove that energy from two opposing EM fields can travel in opposite directions along the same vector.
My friends water vapor is a green house gas too.
Greenhouse gas is a misnomer. CO2 and none of the other gasses are greenhouse gasses if you are referring to them as capable of retaining heat EXCEPT water vapor. Water vapor can trap and retain heat, but the molecule itself doesn't necessarily get warmer. If you would like an experiment to prove this to yourself, ask and I will be happy to describe it.
We all know it retains heat within our atmosphere and so does co2. Frank remember my post about how the extra co2 within our atmosphere currently is unnatural and doesn't fit within the ice cores of the past 2.1 million years? That is what our friends the warmers believe is causing the extra imbalance.
Water vapor is the only substance in our atmosphere that can actually absorb and retain energy. CO2 does not. If you believe it does, then describe the mechanism. If you expose CO2 or any of the other so called "greenhouse gasses" to IR, you will see an absorptio spectrum and before you can even form the thought, you see an emission spectrum that is precisely the opposite of the absorption spectra. No energy is retained.
All you need do is look at the past climate to see that CO2 is not the culprit. It has been both warmer and cooler with less CO2 in the atmosphere. It has been warmer and cooler with more CO2 in the atmosphere. When the climate has been warmer and cooler with more and less CO2 in the atmosphere, it doesn't take a rocket scientist to realize that CO2 is not causing the rise and fall in temperature.
The earth has one energy source. It is the sun. The climate is driven by energy. You want to know what drives the climate, look to the energy source.
"Kind of like the seasons on earth
In summer you have the sun at near 20 north around this time of the year and the northern hemisphere is getting a surplus of energy=warmer temperatures.
There is no surplus of energy. There is only the amount of energy incoming from the sun.
Look at the ice cores and you find that during the interglacial periods that co2 avg's near 260-300 ppm. 300 ppm 120 thousand years ago during the interglacial that was hotter then today.
Look at the same ice cores and you see that the rise in CO2 lagged behind the warming. This tells a rational being that CO2 is the result of warmer themperatures, not the cause. You want to know what started the warming in the first place? Again, look to the only energy source available.
And if you believe that CO2 is an amplifier, describe the mechanism and show me the math.
You people love to use mars to disprove this, but the truth is heat and temperature are different. Different being that heat energy can only produce a higher temperature if the molecules bump into each other. Mars atmosphere is so thin that the protocols are far away from each other and so the temperature is COOL. The opposite is true on venus with a thick atmosphere and which molecules can bump into each other and create higher temperatures. Case in point is the thermalsphere that is cool, but produces very little molecules that strike into each other.
By the same token, warmers like to use venus as a proof. Venus, however has an atmospheric pressure of more than 90 times that of the earth. One only need look at the ideal gas laws to explain the heat there. If you go up in the atmosphere of venus to a point where the atmospheric pressure is 1 bar (earth equivilent) the temperature is the same as on earth once you compensate for the difference in incoming solar radiation. If you take earth atmosphere and increase it 92 times that of earth, ideal gas law tells you that the temperature here would be near that of venus once you compensate for the difference in incoming solar radiation.
As you increase green house gases on the planet, we call earth you get=increased temperature because a green house gas radiates heat back towards the surface, which causes a compounding of energy within the system. Small, yes, but there. That is what global warming is. How much warming, who knows.
Absolutely not true. The whole hypothesis of the greenhouse effect rests on that statement and the mathematics required to prove it wrong are very basic. The law of conservation of energy states pretty clearly that you can not create energy. There is X amount of energy coming in from the sun and that is what we have. You can't compound it. You can change it, you can use it, you can ignore it if you like, but you can not compound it. If compounding energy were possible, we would have no energy woes at all. We could simply set up reflectors, compound the energy and collect the excess for our use.
According to warmists, the surface of the earth receives 161 watts per square meter of radiation from the sun. If it were a perfect reflector, which it is not, the most energy it could reflect would be 161 watts per square meter. According to the same warmists, the surface of the earth that receives 161 watts per square meter of radiation from the sun is radiating 356 watts per square meter. I would like for you to describe the law of physics that predicts such a thing, and describe the mechanism by which it happens, and show me the math to prove it. To date, no climate scientist has done those three things. Acceptance of the claim is a matter of faith, not science.
Here is an exchange between RWatt and myself in which he eventually proves once again that the atmosphere is not radiating downward to warm the earth.
http://www.usmessageboard.com/3739629-post138.html
http://www.usmessageboard.com/3747723-post160.html
http://www.usmessageboard.com/3749183-post165.html
http://www.usmessageboard.com/3752896-post193.html
http://www.usmessageboard.com/3757921-post208.html
http://www.usmessageboard.com/3757983-post209.html
http://www.usmessageboard.com/3758427-post211.html
http://www.usmessageboard.com/3774581-post215.html
Energy can not travel in opposite directions along a single vector. That is an undeniable fact and is at the very core of energy transfer. If you propose a hypothesis that requires that energy move in opposite directions along a single vector, then your hpothesis is false.
The earth radiates some of the energy it absorbs from the sun outward. That radiation take the form of an EM field. That EM field has a magnitude of X. The atmosphere radiates an EM field as well. Its magnitude is Y. When the two fields are in opposition as in the claim that the atmosphere radiates downward toward the earth, you simply subtract the two fields and the result tells you in which direction all energy flows. All energy flows in the direction propagated by the field of greater magnitude. No energy flows against it. The EM field generated by the atmosphere is "swept" so to speak in the same direction as the greater EM field propagated by the earth. No energy from the atmosphere is coming down to warm the earth.
Once more, if you believe that radiation can come down from the cooler atmosphere and warm the earth, describe which law of physics might allow energy to move in opposite directions along the same vector, and show me the math to prove it.
That is the hypothesis of global warming.
And it is false because the mechanics required, at its very foundation violate both the law of conservation of energy and the 2nd law of thermodynamics. If you want a simple, inexpensive experiment in which you can prove to yourself and actually observe that downdwelling radiation is not warming the earth, just ask and I will describe it to you and provide a link to construction instructions.