10 June 2017
The Settled Science of Catastrophic Man-Made Global Warming Violates the Laws of Physics
President Trump has just recently announced that the U.S. will not
participate in the Paris Climate Agreement. He implied that he regarded it as a bad deal
for the U.S. economy, while not necessarily disputing its premise that man’s
use of fossil fuels was going to cause a disastrous deterioration of the Earth’s
climate. Only a minority of Americans
seriously claim that the science behind the catastrophic man-made global
warming hypothesis is wrong. Most of mankind has been seriously misinformed on this critically important topic.
Almost all of the debate about the science is about whether
the number of hurricanes of late; the world area under drought conditions; the
area of melting ice somewhere in the arctic, Antarctica, or at the site of some
glacier in the mountains is greater or reduced recently; the temperature of the
ocean surface or at land stations near population centers has increased; or
whether some area of the ocean has an increasing acidity or not. Given the complexity of all the factors that might
be linked to increased carbon dioxide in the atmosphere and their cycles over
decades and more, this debate could easily go on for decades with no certain
conclusion. The possible symptoms of man-made
global warming are too much affected by weather, cycles in solar energy output,
ocean heat cycles, and high altitude wind currents to clearly see the
underlying long-term climate equilibrium trends.
Meanwhile, the alarmists will go on claiming that the
Precautionary Principle requires us to make radical cut-backs in our use of
carbon-based fuels, no matter the consequences in the cost of energy and its
availability for the poor and most everyone else, on jobs, and on economic
growth. Preventing an imagined disaster
decades into the future takes precedence over the well-being of billions of
humans in the meantime in the eyes of the many advocates of the catastrophic
man-made global warming hypothesis.
This long, drawn out debate is unnecessary. Worrying about a future climate catastrophe
has no basis in the physics of the climate.
It turns out that the so-called settled science has internal flaws in
the physics that constitutes its very most fundamental basis. The advocates of the global warming by carbon
dioxide hypothesis have told us that the science is settled. They make some very specific claims about how
so-called greenhouse gases cause the present temperatures of the Earth’s
surface and atmosphere to be warm as a part of what they claim to be the
settled science. Consequently, we can
challenge the physics they claim to be behind the present conditions that control
the Earth’s basic climate. We do not
even need to wait to see if their catastrophic man-made (anthropogenic) global
warming hypothesis makes correct predictions for the future. In challenging the physics of their theory,
we may well learn more about what the effect of additional carbon dioxide on the climate
in the future will be. In any case, if
their reasoning for the present temperatures of the surface and atmosphere is substantially
wrong and in violation of fundamental laws of physics, then any further
predictions they may make have no basis in science. If they do not understand the present, they
certainly do not understand the future.
Let me first lay out what their basic argument for how
infrared-active (so-called greenhouse) gases cause the Earth to be much warmer
than it would be without them. Having
done so, I will proceed to demolish their argument by showing the many ways in
which it defies well-known physics principles, none of which the scientific advocates
of the strong greenhouse effect will actually deny are true principles of
science. In fact, they make a pretense
of using these same principles of science themselves.
Let us begin with an examination of the Earth Energy Budget
NASA currently has on its website to explain the effect of infrared-active
gases in warming the Earth. Because this
and many similar Earth energy budgets have been a key part of the claimed science
of anthropogenic global warming by infrared-active gases for many years now and
because they are adamant in claiming that the science is settled, then any
violations of scientific principles in this NASA Earth Energy Budget invalidate
the complete argument for catastrophic man-made global warming.
When faced with a complex scientific problem, a good
scientist should have the wisdom to first establish whatever limits he can on
what the range of physically possible solutions might be by seeing if he can
establish lower or upper bounds for the values of a property he wishes to
measure or calculate. He will learn
something about the essence of the complex problem in the process and he will
protect himself from becoming an advocate for a physically impossible solution
to the problem. This has the real
benefit of protecting him from making ridiculous conclusions.
According to this energy budget, the total photon energy
flux absorbed by the entire Earth system is the incoming solar radiation
absorbed by the atmosphere plus that absorbed by the surface, which is
P (solar absorbed) = (77.1 + 163.3) W/m2 = 240.4
W/m2
Watts are Joules/second, or the rate at which energy flows. This 240.4 W/m2 is the largest possible photon energy supply that the
surface might ever be able to absorb. It
is an upper limit, since nothing on the Earth can add to the energy introduced
into the Earth system from the solar radiation, save a possible very minor
contribution of heat leakage from the hot interior of the Earth, which they do
not consider in their energy budget. This
upper limit is actually further reduced by the amount of any energy absorbed by
the atmosphere which is directly emitted as radiation into space, which is the
case for sure of much of the 77.1 W/m2 absorbed from sunlight in the
atmosphere. This upper limit is a simple
matter of conservation of energy.
Now we can immediately see that this energy budget claims
that there is a miraculous supply of energy-bearing photons absorbed by the
surface with a power of
P (surface absorbed) = (163.3 + 340.3) W/m2 =
503.6 W/m2
Where does this addition energy in the form of photons come
from? According to the settled science,
this is not additional energy because the total energy flowing out of the Earth
system at the top of the atmosphere is the maximum power of the first equation
minus the net absorbed heat (0.6 W/m2 ) in the surface of a slowly warming Earth. According to them, one can add as many
photons as one wishes with as much energy as one wishes within the Earth system
of atmosphere and surface, so long as enough of those photons have negative
energy to cancel out the positive energy of other photons.
Of course, they never say it this way because there is no
such thing as positive and negative energy photons. The reality is that there are only positive
energy photons and this settled theory has created a huge supply of energy carried by photons in violation of the Law of Conservation of Energy. Somehow, greenhouse gases are supposed to
have created a supply of photons with an additional energy flow rate of (503.6 –
240.4) W/m2 = 263.2 W/m2 compared the maximum possible energy in the form of photons, which is even more energy than
was absorbed in the entire Earth system from the sun!
If the total rate of energy into the Earth system is 240.4
W/m2, this is the highest rate at which energy might leave the
surface. However, since the energy
budget provides for a net absorption, thermals losses, and water evaporation,
the largest possible flux of energy carried by photons leaving the surface on
invoking the Law of Conservation of Energy is
P (photon energy flux leaving surface) = (240.4 -0.6 – 18.4 –
86.4) W/m2 = 135.0 W/m2
But having no regard for the Conservation of Energy, the
settled science insists that photons carrying energy at the rate of 398.2 W/m2
are leaving the surface. Somehow photons
carrying energy at a rate of (398.2 – 135.0) W/m2 = 293.2 W/m2
have materialized out of nowhere through the miracle of greenhouse gases. The photon flux leaving the surface is 398.2
/ 135.0 = 2.95 times the theoretical upper limit. Well, never let mere physics stop you from
making whatever argument you might think will be good for the maintenance of
the environment or the justification to propagate more governmental controls and
taxes.
The ridiculous physics does not stop with these violations
of the Conservation of Energy. When once
one has deviated so far from physical reality, it is necessary to violate still
more well-known physics. I will now
apply a similar examination of physical limits to the issues of the amount of
infrared radiation from the surface that is absorbed by the atmosphere and the
amount of radiation from the atmosphere which is absorbed by the surface.
There is a well-known law of thermal radiation called the
Stefan-Boltzmann Law which says that the power per unit area of thermal
radiation from a black body radiator is
P (W/m2) = σ T4,
which is the maximum power that can be radiated by a black
body when it has no competing power loss mechanisms to radiative cooling and is
surrounded by vacuum at absolute zero temperature, or 0 K. σ = 5.6697 x 10-8 W/m2
K4 and T is the absolute temperature in Kelvin, represented by K. Of course, real materials usually radiate less
power than this and do so to an environment which is not at 0 K, though deep
space is at least close to that temperature.
The power that a cooler black body at Tc absorbs from a
warmer black body radiator at Tw is
P (absorbed, W/m2) = σ ( Tw4
– Tc4 )
This power is greater than that which can be gained by a
real material which is not a black body material from warmer real material
which is more like a black body material.
Consequently, we will be using this to establish the upper limits of the
transfer of heat by thermal radiation from the warmer Earth surface to the
cooler atmosphere.
Returning to the NASA Earth Energy Budget, the Earth’s
surface is shown to deposit 358.2 W/m2 of energy flux into the
atmosphere out of the 398.2 W/m2 that it emits. This surface emission of thermal infrared
radiation from a black body behaving as though it were surrounded by 0 K vacuum
implies a surface temperature of
P = 398.2 W/m2 = (5.6697 x 10-8 W/m2K4)
T4, so T= 289.5 K,
Which is the highest average surface temperature for the
Earth that I have ever seen claimed. The
usual range of temperatures claimed in the settled science is 287.5 to 288.5
K.
As I have done in some of the recent
articles I have written, we will now calculate the temperature of a black body
spherical shell surrounding the Earth which would be capable of absorbing the
358.2 W/m2 said to be absorbed from the surface thermal radiation by
the atmosphere. This is
P (absorbed, W/m2) = 358.2 W/m2 = σ ( Tw4
– Tc4 ) =
(5.6697 x 10-8 W/m2K4)
[(289.5 K)4 – Tc4], so Tc = 163.0 K
As I have previously pointed out, there is no part of the
Earth’s atmosphere with a temperature as low as 163.0 K. Insofar as infra-red absorbing gases in the
atmosphere fall short of absorbing all of the infrared radiation from the Earth’s
surface as efficiently as a black body absorber would, the required temperature
of the absorbing gas molecules would have to be lower yet. In fact, since they simply cannot absorb some
of the infrared radiation frequencies or wavelengths from the surface at all,
even if the so-called greenhouse gas were at zero Kelvin, absolute zero
temperature, those greenhouse gases could not absorb as much energy flux as a
black body absorber can at 163K.
Of course water vapor tends to condense in the atmosphere
when it reaches just 273.15 K (0⁰C), so there is a rapid decrease in the
water vapor concentration even in the upper troposphere. However, at pressures below 5.1 atmospheres
carbon dioxide does not liquefy, let alone solidify. In fact, the coldest part of the Earth’s
atmosphere, the mesopause, at 86 km to 90 km has a minimum temperature of about
187 K because carbon dioxide radiates heat to space so efficiently from that super
low density layer of the atmosphere.
Carbon dioxide is generally an effective coolant in the atmosphere above
the altitude of water vapor condensation.
This is just one of many ways that CO2 acts to cool the
Earth.
So let us examine the spectrum of energies of the photons
that make up the thermal radiation from the Earth’s surface modeled as a black
body radiator in vacuum and surrounded by nothing but space at absolute zero
temperature. Because we are interested
in the flux of energy carried away from this hypothetical surface, which is
exactly the surface assumed real in the settled science of the NASA Earth
Energy Budget, I will provide the spectrum of radiated energy flux versus the radiated
photon energy E = h ν, where h is Planck’s constant
equal to 6.625 x 10-34 Joule-sec and ν
is the frequency per second.
Because the
energy of each radiated photon is very small, I will plot the energy scale in
eV, a unit of energy equal to 1.602 x 10-19 Joules. One Joule/second is a Watt. This plot of power in W/m2 is for
a more commonly accepted Earth average surface temperature of 288 K. The area under the power output curve is the
total power output due to the radiation from a black body radiator at 288 K,
which is 390.06 W/m2.
Below the power output of the
black body model of the Earth’s surface is a plot showing the infrared
absorption spectra of water vapor and carbon dioxide taken in my laboratory
using my FTIR infrared spectrometer.
This spectrometer does not produce an infrared beam with adequate
intensity to make absorption measurements below an energy of 0.05 eV, so the
absorption spectra start there and extend to about 0.9 eV for generally useful
data. The carbon dioxide concentration
was several times that of the normal atmosphere and the water vapor was above
50% RH measured against an instrumental background spectrum made at about 25%
RH.
The important point here is not
one of the relative degree of absorption of water vapor compared to carbon
dioxide. The critical point here is that from
about 0.09 to 0.155 eV there is no absorption by either water vapor or carbon
dioxide. A good fraction of the infrared
radiation emitted by the black body modeled surface of the Earth lies in this
range, which is called the atmospheric window.
This portion of the power spectrum in which no absorption takes place is
about 35.5% of the power radiated from the black body modeled Earth surface. This is about 138.5 W/m2 which
should be emitted to space if the Earth’s surface really radiated as a black
body radiator as the settled science says it does. Any incomplete absorption of the surface
radiation at other energies would have to be added to this.
So how is it that the NASA
Earth Energy Budget says that only 40.1 W/m2 is emitted from the
surface into space? If a minimum of what
they say is emitted from the surface and will not be absorbed by water vapor or
carbon dioxide is 138.5 W/m2, then the power they claim is emitted
to space is only 29% of that minimum.
NASA says only 10.1% of the surface emitted radiation is emitted to
space through the atmospheric window.
This sure would make the use of infrared sensors a lot more difficult
than it is. Fortunately, our military
infrared sensor designers know that the NASA story on the atmospheric window is
wrong. In fact, many scientists in NASA surely
know this is wrong, except for those steeped in Climate Change funding for
their work there. About half of the NASA
budget recently has been directed at Climate Change investigations, so NASA has
a huge incentive to hype climate alarmism.
The bottom line is that for the
358.2 W/m2 to be absorbed in the atmosphere out of the 398.2 W/m2
that NASA says is emitted from the surface, the absorber needs to be a black
body absorber located about 6 Earth orbit radii from the sun. That is how far one has to go out into our
solar system to find sufficiently cold space to serve as the absorbing black
body sphere to absorb so much radiation.
This is in no way a part of the Earth’s atmosphere and energy dumped
into space cannot become significant back radiation to constitute a good part
of the 340.3 W/m2 that NASA is claiming is back radiation from the
atmosphere to the surface. Of course we
already know that 340.3 W/m2 of back radiation is impossible because
there is only 240.4 W/m2 of power entering the entire Earth
system. But if you are willing to
violate the Conservation of Energy, it is hardly surprising that you are driven
to violate the Stefan-Boltzmann Law of thermal radiation. One violation of reality inevitably leads to
numerous other violations of reality.
We can also ask what the temperature of the black body
radiator would have to be to generate the 340.3 W/m2 of back
radiation that NASA is claiming in the settled science occurs. We have
P = 340.3 W/m2 = (5.6697 x 10-8 W/m2K4)
T4, so T= 278.3 K,
which in the U.S. Standard Atmosphere of 1976 means this
radiation could originate from a black body sphere at an altitude of about 1500
meters. Now we have learned that the
398.2 W/m2 emitted from the surface could not contribute 358.2 W/m2
to the atmosphere at an altitude of 1500 m. Let us calculate about how much it could
deposit into the atmosphere if it were a black body absorber. This number will of course be a generous
upper limit. In fact, we could say the
upper limit will be only 64.5% of this taking into account our measurement of
the minimum power lost through the atmospheric window.
The maximum black body absorbed power at 278.3
K in the atmosphere from the surface would then be:
P = (5.6697 x 10-8 W/m2K4) [(289.5K)4
- (278.3K)4] = 58.1 W/m2,
where I have used the NASA Earth average surface temperature
of 289.5 K. If we then subtract from
this the minimal fraction lost through the atmospheric window, which is 35.5%,
the power at about 1500 m altitude absorbed from the surface is only 37.5 W/m2.
Now let us determine an upper limit for the amount of power
available in the atmosphere at 1500 m altitude.
We clearly have less than
77.1 W/m2 total atmospheric absorption from the
sun, a large over-estimate
18.4 W/m2 in thermals
86.4 W/m2 in latent heat due to water
condensation (much of which happens well above 1500 m altitude
37.5 W/m2 absorbed from the surface
Total Upper Limit Power Available in Atmosphere near 1500 m
altitude = 219.4 W/m2
Now converting this upper limit power into radiation
properly would mean that it would flow from warmer air to cooler air and
therefore would almost all be transported upward through the atmosphere. But in the NASA mindset, one fallaciously a
part of the settled science viewpoint, thermal radiation is isotropic. If one accepts that viewpoint, then only half
of this upper limit of 219.4 W/m2 could become back radiation to the
surface. That value of half is then
109.7 W/m2. Any claim of back
radiation in excess of this amount is clearly absurd. So, the NASA claim of 340.3 W/m2
of back radiation to the surface is at least (a lower bound) 3.1 times absurd. In fact, any real back radiation is many
times smaller than 109.7 W/m2.
Having discovered so many ways in which the NASA Earth
Energy Budget of the settled science is ridiculous, one has to wonder if they
got anything right. I find myself very
suspicious of the surface power loss to thermals and to latent heat through
water evaporation. On the other hand,
one would think that they might be able to make good measurements of the
reflection of solar radiation at least in total if not separately for that from
the atmosphere and the surface. I would
also think that they could measure the radiation from the surface through the
atmospheric window quite well also.
Let us examine some implications of this atmospheric window
measurement. If it is minimally 35.5% of
the surface emission, then the surface radiative emission is at least 113.0 W/m2. Let us now calculate the maximum power that
the surface can emit in the form of radiation now that we have a very high
upper bound for the back radiation under the assumption that NASA has the other
absorbed and loss energy fluxes correct:
163.3 W/m2 absorbed from the sun
-18.4 W/m2 lost to thermals
-86.4 W/m2 lost to water evaporation
-0.6 W/m2 residual absorbed heat causing long
term warming of the surface
109.7 W/m2 in greatly exaggerated back radiation
Maximum total radiation emitted from the surface = 167.6 W/m2
This generous maximum is only 42% of what NASA claims the
thermal radiative emission to be.
Apparently, the surface of the Earth cannot radiate thermal energy as a
black body radiator in vacuum surrounded by absolute zero would. This should be no surprise. This is once again a consequence of the Conservation
of Energy. Consequently, we know that
within the framework of some of the measurements claimed as a part of the
settled science that the thermal radiation from the Earth’s surface has be
between 113.0 and 167.6 W/m2.
Why do materials emit thermal radiation? The temperature of a material is determined
by its kinetic energy. Materials with
internal modes of vibration share the kinetic energy they have equally with all
the modes of motion available to the material.
The internal vibrations of atoms bound to one another necessarily cause
electric charges to accelerate and decelerate due to oscillatory vibrations in
the material. The emission of
electromagnetic radiation then depends upon the kinetic energy of bound atoms
and their resonance states. Solid
materials tend to have so many modes of vibration that they emit radiation
across a very wide spectrum of photon energies.
Liquids tend to be similar in this regard, though the range of energies
tends to be a bit less. Gas molecules,
however, consist of very small numbers of atoms and consequently have few modes
of vibration. There emission spectra
tend to have more discrete and narrow emission lines. Contrary to popular belief, nitrogen and
oxygen molecules do have electromagnetic emission spectra, though they lie
outside of the infrared portion of the spectrum. Oxygen actually has a small absorption and
emission line near the border of the red visible light to near infrared
spectrum that allows it to absorb some of the incoming solar insolation.
Let us suppose we are examining a few atoms on the surface
of wet soil. Each time a water molecule
is evaporated from that wet soil, that molecule carries away an energy equal to
its latent heat of evaporation. This
cools those atoms immediately around the site from which the water molecule
evaporated from the surface. Now heat
will flow into this microscopic region from the warmer surrounding atoms, but
for an instant in time this fractional area of the surface is cooler than the
nominal average temperature of the surface.
As a result, any thermal emission of radiation from this microscopic
area will be that from a slightly cooler surface. This means that fractional area will be
emitting slightly less power than will areas of the surface at the average
temperature of the material. The mean emitted
photon energy will be slightly less also.
Similarly, if a cooler air molecule strikes a warmer surface and carries
away a bit of energy as a result of that collision, then the surface will
locally be cooler for a moment and that area will emit less thermal radiation.
Materials with water in them or in contact with air do not
act exactly like black body radiators in space for this reason. Energy is conserved. Energy used to evaporate water cannot also be
used to emit photons. Energy transferred
to the air molecules by collisions to increase their kinetic energy cannot be
emitted as a photon. This is not to say
that there are not fractions of a macroscopic surface which are radiating on
the microscopic level as one expects the same material to do in vacuum with no
energy loss mechanisms except thermal radiation. A square meter of the Earth’s surface might
have 60% of the area emitting thermal radiation as though it were in vacuum,
while the rest of the surface is radiating slightly less power and with a
slight shift in the distribution of emitted photons to lower photon energies.
The emission is also limited by the temperature of the
materials surroundings. As we noted
above, the radiation emitted is proportional to the difference of the fourth
power of the temperature of the emitter and the absorber of the radiation. Photon emission occurs because of
electromagnetic fields and those photons travel along an electric field
dependent upon the gradients of the electromagnetic field. Photons are not just flung about as a primary
entity. They are creatures of
electromagnetic fields. The emitting
higher temperature source is connected to the absorbing lower temperature photon
sink by this electromagnetic field. When
you assume that every material is emitting radiation as a black body would when
surrounded by vacuum at 0K, you will necessarily generate a host of
non-existent photons which will upset the energy balance.
The act of ignoring the proper transfers of radiative power
between objects has played a great role in the failure to recognize that the
Earth’s gravitational field causes a kinetic energy gradient in the
atmosphere. Because the temperature of
perfect or ideal gas is proportional to its kinetic energy, this means that
gravity produces a temperature gradient in the atmosphere. This long known gravitational temperature
gradient does not imply a heat transfer or flow along the temperature gradient,
though most scientists are under the misconception that any temperature
gradient implies a flow of heat energy.
That belief is wrong. Because the
settled science ignores this gravitational temperature gradient and posits an
exaggerated surface thermal radiative cooling compensated with a gigantically
exaggerated back radiation, it could hardly be more in error.
As I have shown, the settle science represented by the NASA
Earth Energy Budget is nonsense science.
It is self-contradictory in numerous ways. It violates the Conservation of Energy. It violates the transport of energy between
objects of different temperatures by thermal radiation. These are simple problems clearly and easily
observed. Given the huge expenditures of
federal funds, United Nations funds, and the funds of many governments of
developed nations around the world on issues relating to the catastrophic
man-made global warming hypothesis, it is impossible to believe that there are
not many scientists who are aware of these violations of physics and
reality.
Yet there are too few scientists who are trying to bring
these colossal mistakes to light. There
are many pressures on scientists to conform to the prescribed theory. Most scientific research performed at
universities is funded by the federal government and it has been the policy of
the government to only fund those who accept or at least do not deny the truth
of the catastrophic man-made global warming hypothesis. There are also many government employee
scientists under great pressure to conform.
Publishing papers opposed to the hypothesis in scientific publications
has been made very difficult by what can only be termed a conspiracy. There are many scientists who have told me
that catastrophic man-made global warming theory is wrong, but they will not
tell the public that out of fear for their careers. This is why many of the open critics of this
nonsense theory are retired scientists.
Nonetheless, the claims that 97% of scientists believe in
catastrophic man-made global warming are completely bogus. A more realistic assessment would be that
about one-third do believe in it, about one-third are not sure, and about
one-third think the hypothesis is unlikely true.
I am not retired. I
operate a materials analysis laboratory which uses electromagnetic radiation
extensively to characterize material properties. Relatively little of our funding comes
directly from government agencies. We
have performed analyses for carbon fuel companies, but have actually done more
work for so-called green energy companies.
I really do not have a horse in this race from a financial standpoint. I am only concerned about the integrity of
science, the freedom to think and act independently, and the well-being of my
fellow man. There is much evil being
done in the name of the catastrophic man-made global warming hypothesis and the
alarmist attempts to promote it at the expense of rational thought and action.
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16 comments:
Terrific analysis. I would love to see your analysis if Henrik Svensmark's cosmic ray theory.
Looks like an 'air tight' argument. Keep pounding away.
I agree. The concept violates the laws of thermodynamics. Energy cannot be created or destroyed and heat cannot travel from a cold to a hot object. Nothing else needs to be said but we have to read pages of nonsense from many sources trying to prove that the laws of thermodynamics apply to back radiation.
Steady state analysis cannot be used to make sense of a nonlinear, dynamic system such as the climate. It is never in a steady state on any time scale. The energy balance diagram you reproduce is completely wrong. It is easier to see the error by drawing a simplified version with just the earth's surface, the atmosphere and the top of the atmosphere. Let S units of energy arrive at the surface from the sun. Let the earth emit E units, so E=S. Let the atmosphere absorb E units and emit A unit both up and down, so E=2A. At the top of the atmosphere S=A. These equilibrium points are assumed but are not justified. Do the substitution and E=2S. The sun's energy has been doubled by the assumption of equilibrium points. Nobody seems to realise this and the nonsense of human caused global warming is the result.
Thank you Anthony. With the rebounding manufacturing sector and a renewed confidence in the future of the American economy, my laboratory has been inundated with work, which has limited my time to address the many errors of physics in the so-called consensus science of the catastrophic man-made global warming hypothesis. I would like to find a way to spend more time on revealing these errors, but I am, of course, totally unfunded for performing such work and do so only because I am trying to save science from some of the damage being done to its reputation and I have an unusually strong love of the rights of the individual to manage and live his own life.
Thank you for your comment AlanT. The response to your thermodynamic argument that heat cannot travel from a cold to a warm object is always that thermodynamics only says that heat cannot have a net positive transfer from a colder to a warmer object. As a result, the consensus group claims to be fine as long as the warmer object is emitting more radiation than the cooler object is in the exchange between the objects. They then try to make it look as though this is always the case, but because of their many errors of physics, they can never create a self-consistent over-all picture of what is going on. The errors have consequences which they cannot hide, though they try very hard to evade those consequences and they refuse to discuss them. In the end, their most consequential error is their refusal to obey the Conservation of Energy. In addition, they violate Stefan's Law for the energy density of black body radiators, which causes them to greatly exaggerate the energy density of the Earth's atmosphere due to radiation.
the Steffan-Bolzman calc generates a base temp for earth
Then the pressure of the atmosphere adds the rest of the temp .
No Green house gases need apply.
(bad boy Posting first then read article ;)
The Stefan-Boltzmann calculation applied correctly to both the surface radiation through the atmospheric window and to the radiation from the infrared-active (greenhouse if you will) gases in the upper troposphere and higher portions of the atmosphere provide base power inputs on which the atmospheric molecular kinetic energy gradient created by the gravitational potential energy gradient produce a baseline temperature profile. Changes in the water vapor vapor content of the atmosphere can cause significant changes to the temperature profile, so it is an exaggeration to say that greenhouse gases are unimportant. Fortunately, water vapor mechanisms do tend to moderate temperature changes caused by other mechanisms to a large degree. The effects of carbon dioxide are small and its increase from zero concentration in the atmosphere at first warms the Earth at the surface slightly, but that effect saturates rather quickly as CO2 concentration increases. Meanwhile, CO2 does also have some small cooling effects, which saturate less rapidly. I suspect that adding CO2 at first warms slightly then cooling sets in though the net effect from zero concentration is just a diminished warming and then finally with still more CO2 the net effect is likely to be a net small cooling effect. None of the effects of CO2 are ever likely to be of catastrophic proportions, however. Indeed, it is going to be tough science to ever directly measure the effects in the actual Earth system given the many parameters that one does not have control over. As for estimating the effects in theory, this will be difficult as well as long as those who fund climate research have as little interest as they have had in measuring those effects which do not lend themselves to the alarmist viewpoint.
I don't accept the argument that carbon dioxide can warm the earth's surface. It cannot generate thermal energy and except in some exceptional cases the atmosphere is always colder than the surface and so the atmosphere cannot heat the surface. Often people say the atmosphere acts like insulation and so it heats the surface. It does not. Insulation does not provide any heat. It only reduces the heat loss which is not the same at all. In the case of home insulation it does not increase the temperature of the flame in the boiler and we have a thermostat to keep a required temperature where we want it. If you think of the earth the temperatures across the system are the temperature of the sun and the temperature of space. The atmosphere does not change these, but the temperatures within the system change constantly - the climate.
I made a small edit on my earlier response: As I have explained many times, infrared absorbing molecules can only decrease the power of radiation emitted by the warmer body. For a thorough discussion of why this is please see my article on two parallel plates https://objectivistindividualist.blogspot.com/2017/11/solving-parallel-plane-black-body.html
I show that CO2 thermalized in the cooler atmosphere will not emit radiation toward the warmer infrared absorbing molecules below it and it will not emit radiation to the surface of the Earth where it is warmer. If it did so, two parallel plates in the limit that a cooler plate approached the temperature of the warmer plate would constitute a black body, yet the usual idea of radiative emission always being given by the Stefan-Boltzmann Law would cause the energy density between the two plates to be twice that which we know it to be by Stefan's Law. It is Stefan's Law that tells us the most basic property of a black body cavity. The Stefan-Boltzmann Law only tells us the radiation between the edge of the volume with the black body cavity radiation energy density and an environment at absolute zero. The minimum energy density distribution consistent with a proper understanding of black body radiation between two black body radiators says that the radiation emitted by the warmer body toward the cooler body actually is only proportional to the difference of the fourth power of the two plates temperatures. The cooler plate cannot emit any photons toward the warmer plate at all. Everyone I know of either simply invokes the second law of thermodynamics to claim this or they much more commonly (as in the settled science viewpoint) assume that every emitter emits radiation in accordance with the Stefan-Boltzmann Law no matter whether it is surrounded by temperatures greater than absolute zero or not. The argument from the 2nd Law of Thermodynamics with an additional appeal to a total system minimization of energy might be an adequate argument, but the added need for the minimum system energy argument is rarely or never discussed. My argument in the referenced article is from a very different angle, but comes to the same conclusion.
If I say there are warming effects of CO2 along with its cooling effects, I am only saying that CO2 can slow down the rate at which warmer bodies are cooling. At some point you have to use a bit of shorthand when you have explained the more subtle reality as often as I have.
Charles: Once again thanks for your response. I have only just discovered your posts, so trying to catch up. I will read the link you provide. I come to this from engineering thermodynamics rather than physics.
I have some issues with your comments here. Surely all the so called greenhouse gases in the atmosphere emit radiation in all directions. The problem is created by the assumption that radiation is the same as heat and this results in the idea of a net heat transfer between hot and cold bodies. This is not correct. Even though both bodies emit IR, the heat transfer is not net, it is always from hot to cold. This is a reference that I think explains this correctly:
http://hockeyschtick.blogspot.co.uk/2014/11/why-cant-radiation-from-cold-body-make.html
I also do not agree with your point about slowing down cooling. A fundamental issue for me about the global warming argument is that the claim is that the average temperature of the earth's surface is increasing and from this it follows that actual temperatures are increasing. This is why I said elsewhere that this is not a physical temperature and the concept is part of the problem. Some say that this increase in temperature is because the rate of cooling is slowed down. This is because of confusion between temperature and heat. Slowing the rate of cooling down does not increase the actual temperatures of the surface of the earth. The average temperature could change but science is not based on the use of averages of any parameter. It has to derive the actual temperature first before an average can be calculated. These come from models and we can see that all the models produce incorrect averages. There is also no measured increase in the temperature of the atmosphere either from satellites or balloons. I struggle to understand what the satellites actually measure. I understand that it is not the actual surface temperature but an average of the temperature of the depth of the atmosphere close to the earth, from memory about 1000 feet.
Hi Alan,
The link I gave you in my previous reply explains why it is wrong to believe that radiation is emitted in all directions, even toward warmer objects. That radiation always consists of real energy and if it were emitted in all directions then energy conservation is literally violated and black body cavities would have twice their known energy density.
There are problems with average temperatures both in terms of knowing the actual average, but also because the variations over the Earth's surface are great and the daily and seasonal fluctuations are great. Nonetheless, I use the idea to create simple cases which can be used to show the inconsistencies and the false physics of the settled science models.
Water vapor and CO2 can play a role in decreasing the rate of surface cooling at night, since some of their cooling effects during the day are reduced. They play a bigger role in arid regions where increases in their concentrations in the atmosphere are not such that their slowing cooling rate effects are near saturation.
The satellite measured temperatures cover a much greater depth of the troposphere, but do not give very much information at 1000 feet.
Charles. I haven't read that article yet but I cannot see at first glance how this is relevant to EMR in general or specifically to the atmosphere. The link I gave you describes the relevant physics in detail. The point is that all radiation does contain energy but there is no heat transfer when the radiation is from a cooler to a warmer body. The link I gave you explains why.
The heat transfer between bodies can be calculated with the correct answer in the usual way applying Stefan-Boltzmann power emissions incorrectly, but the number of photons then believed to be in existence is much exaggerated. Once you believe the non-existent photons are real, then one tends to believe that radiation is a much more dominant means of energy transport in the atmosphere and that the excitation of infrared-active molecules occurs much more frequently than they do. This is a natural extension of the many settled science Earth Energy Budgets which view the atmosphere as a single layer with energy inputs from the sun and from the surface. It is the reason it is believed that back radiation from the atmosphere is a great source of heat input to the surface than is solar insolation, for instance. This is a huge error and it allows people to overlook the temperature gradient in the atmosphere due to the potential and kinetic energy gradients caused by gravity. Being careless with the Conservation of Energy also causes people to underestimate the importance of the roles of water evaporation and thermals in transporting heat in the lower atmosphere. If one is not extremely careful to develop a model that obeys the Conservation of Energy, then one will create a model that is nonsense.
The major point is that the influence of C02 is very, very small on any "climate" change. Historical records prove and where did the CO2 that we liberate again by burning fossil fuels come from anyway? The major influences are the sun, water vapor/condens in our atmosphere and cosmic rays that create more condens. A simple question: why are desserts so hot during the day and so cold at night? Because there is very little water vapor. Why did after 9/11 increase the ground temperature during the day and dropped it during the nights after just 3 days of a no-fly zone? Not because the planes were not emittting CO2 but because the absence of their condens trails. Nevertheless, there are many good reasons for not burning fossil fuels (pollution, oil as a resource, geo-political, ...) but CO2 is not one of them.
The part I like best about the NASA diagram is the albedo. If there is 340.4 W/m2 coming in, and 99.9 W/m2 total are reflected, that is an albedo of .293. NASA’s own Earth fact sheet says that the real albedo for Earth is .306. The real reflected amount, matching the correct albedo, should be 104.2 W/m2. That means that the net incoming radiation should be 236.2 W/m2. If the outgoing radiation is 239.9 W/m2, then instead of .6 W/m2 of “heating in the pipeline”, there is 3.7 W/m2 of cooling “in the pipeline”. Oh oh, global cooling!
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