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Originally posted by ElectricUniverse
Wow, I guess physicists have nothing to say now about the "physics" of GHGs?....
First of all that paper you gave comes from ONE physicist, meanwhile the other paper had two physicist... Someone wise enough once said two heads think better than one...
Did anyone ever tell you what ASSUMING proves?.... That's what AGW claims are all about flawed assumptions made by people whose whole career depend on the survival of GCMs nomatter how flawed they are...
Originally posted by metamagic
Science is exact, scientists are not.
Really science is exact?.... Obviously you don't know much about science because science is ALWAYS EVOLVING..... Science is neither exact nor is it settled....
From the time of the Egyptians, or the ancient Chinese, or the Greeks til today science has EVOLVED quite a bit, and we keep learning new things, and we keep finding out things that once was thought impossible "because science said so" are more than possible.
Originally posted by ElectricUniverse
Your point seems to be that you are trying to refute this by making a claim which really refutes nothing, and has nothing to do with the thread. I have worked with scientists of many different fields and I have valued their opinions as they have valued mine, but that doesn't prove anything at all does it?
Well, i guess your point must be then not to trust anyone who dares to argue against models which are based on flawed assumptions...
Actually i have to say beware of those who would tell you not to believe scientists just because they, and their research happens to disagree with "standard models".
It isn't just a single piece of paper. There are hundreds of peer-reviewed research papers, and thousands of scientists who have shown and or state AGW is a lie. A lie that is as dead as Mann's Hockey Stick graph.
Then we have the leaked emails, the several errors that the IPCC had to concede recently they based their claims on, and the fact that nature itself has shown AGW is a lie.
As i said above there is more than just this paper, and btw should people be impressed by your statements that "you have worked with both types of scientists" and take this claim of yours as proof that AGW is true?
Originally posted by melatonin
So, science is exact, scientists are not. Science is logical and has no ego, scientists are not and do have 'em.
Caveat discipulus.
No offense, but I have a hard time believing you have worked with scientists and yet you claim "science is exact"...
Science is not exact, science is always evolving because at the end science is but the estimated guess of a human who is flawed just because he/she is human.
Computer models are made by men, or women, and like humans computer models are flawed, and this is a fact that several peer-reviewed research has shown.
Originally posted by ElectricUniverse
reply to post by SaturnFX
What in the world are you talking about?... Please learn how to make a coherent argument before you post illogical rhetoric which proves nothing but your state of mind...
The Earth is NOT a closed system,
Originally posted by pikestaff
I would really like to see an answer to a very simple question, just how does %0.004 of the atmosphere( thats rounded up) (CO2, thats 383 parts per million) heat up the other %99.006?
All the blogs I go on, never get an answer, I have read that Methane holds 20 times more heat than CO2, but it hardly gets a mention, or water vapour.
Originally posted by john124
reply to post by FortAnthem
Oh look I'm a physicist and I can do better climate science than a climate scientist!!!
So who is going to be right? Scientists who have decades of experience in climate science, or retired scientists taking up climate science as a hobby. Stick to your own field of expertise please guys!
[edit on 27-1-2010 by john124]
Originally posted by ventian
No one seems to have the ba**s to say it so I will. Those two guys may be just a handful of scientists we have left. Science is about disproving theories in order to prove theories. This whole global warming thing has destroyed the scientific communities credibility. These so called scientists (for funding) have continually tried to prove global warming. They immediately jumped on board in order to please TPTB and line their pockets. Flame me and say I am wrong but it doesn't change the fact that most of the leading "scientists" aren't expanding our knowledge, they are expanding their wallets.
Originally posted by SaturnFX
Also, how does a virus, basically taking a fraction of a bodys mass, end up killing a person...its soo small...this logic also dismisses viruses as potentially deadly.
Never underestimate the impact of something simply because its smaller than the rest of the system...
Originally posted by Ionut
Originally posted by SaturnFX
Also, how does a virus, basically taking a fraction of a bodys mass, end up killing a person...its soo small...this logic also dismisses viruses as potentially deadly.
Never underestimate the impact of something simply because its smaller than the rest of the system...
you got that right.. once I warmed up a mansion with 14 rooms by use of a single light-bulb
[edit on 28-1-2010 by Ionut]
[edit on 28-1-2010 by Ionut]
Originally posted by Danna
reply to post by SaturnFX
earth is a closed system it means it only receives energy (as you said sunlight) but not matter. And when you think about meteors and outer space well that isn't enough matter compared to earth's size.
December 23, 2009: The solar system is passing through an interstellar cloud that physics says should not exist...
...that physics says should not exist...
Astronomers call the cloud we're running into now the Local Interstellar Cloud or "Local Fluff" for short. It's about 30 light years wide and contains a wispy mixture of hydrogen and helium atoms at a temperature of 6000 C.
...at a temperature of 6000 C...
...possibly affecting terrestrial climate and the ability of astronauts to travel safely through space...
Originally posted by DINSTAAR
The question isn't, "Does climate change exist"? It is "What is the most prudent form of action that we could take if climate change exists or not"? You will find the answer for the latter question is the same regardless of climate changes validity.
Physicist's Summary
A thorough discussion of the planetary heat transfer problem in the framework of theoreticalphysics and engineering thermodynamics leads to the following results:
1. There are no common physical laws between the warming phenomenon in glass housesand the fictitious atmospheric greenhouse effect, which explains the relevant physicalphenomena. The terms \greenhouse effect" and \greenhouse gases" are deliberate misnomers.
2. There are no calculations to determinate an average surface temperature of a planet
_ with or without an atmosphere,
_ with or without rotation,
_ with or without infrared light absorbing gases.
The frequently mentioned difference of 33 degrees C for the fictitious greenhouse effect of the atmosphere is therefore a meaningless number.
3. Any radiation balance for the average radiant flux is completely irrelevant for the determination of the ground level air temperatures and thus for the average value as well.
4. Average temperature values cannot be identified with the fourth root of average values of the absolute temperature's fourth power.
5. Radiation and heat flows do not determine the temperature distributions and their average values.
6. Re-emission is not reflection and can in no way heat up the ground-level air against the actual heat flow without mechanical work.
7. The temperature rises in the climate model computations are made plausible by a perpetuum mobile of the second kind. This is possible by setting the thermal conductivity in the atmospheric models to zero, an unphysical assumption. It would be no longer a perpetuum mobile of the second kind, if the \average" fictitious radiation balance, which has no physical justification anyway, was given up.
8. After Schack 1972 water vapor is responsible for most of the absorption of the infrared radiation in the Earth's atmosphere. The wavelength of the part of radiation, which is absorbed by carbon dioxide is only a small part of the full infrared spectrum and does not change considerably by raising its partial pressure.
9. Infrared absorption does not imply \backwarming". Rather it may lead to a drop of the temperature of the illuminated surface.
10. In radiation transport models with the assumption of local thermal equilibrium, it is assumed that the absorbed radiation is transformed into the thermal movement of all gas molecules. There is no increased selective re-emission of infrared radiation at the low temperatures of the Earth's atmosphere.
11. In climate models, planetary or astrophysical mechanisms are not accounted for properly. The time dependency of the gravity acceleration by the Moon and the Sun (high tide and low tide) and the local geographic situation, which is important for the local climate, cannot be taken into account.
12. Detection and attribution studies, predictions from computer models in chaotic systems, and the concept of scenario analysis lie outside the framework of exact sciences, in particular theoretical physics.
13. The choice of an appropriate discretization method and the definition of appropriate dynamical constraints (flux control) having become a part of computer modelling is nothing but another form of data curve fitting. The mathematical physicist v. Neumann once said to his young collaborators: \If you allow me four free parameters I can build a mathematical model that describes exactly everything that an elephant can do. If you allow me a fifth free parameter, the model I build will forecast that the elephant will fly." (cf. Ref. [185].)
14. Higher derivative operators (e.g. the Laplacian) can never be represented on grids with wide meshes. Therefore a description of heat conduction in global computer models is impossible. The heat conduction equation is not and cannot properly be represented on grids with wide meshes.
15. Computer models of higher dimensional chaotic systems, best described by non-linear partial differential equations (i.e. Navier-Stokes equations), fundamentally differ from calculations where perturbation theory is applicable and successive improvements of the predictions - by raising the computing power - are possible. At best, these computer models may be regarded as a heuristic game.
16. Climatology misinterprets unpredictability of chaos known as buttery phenomenon as another threat to the health of the Earth.
Study
Earth is heating up lately, but so are Mars, Pluto and other worlds in our solar system, leading some scientists to speculate that a change in the sun’s activity is the common thread linking all these baking events.
“It’s believed that what drives climate change on Mars are orbital variations,” said Jeffrey Plaut, a project scientist for NASA’s Mars Odyssey mission. “The Earth also goes through orbital variations similar to that of Mars.”
Simultaneous warming on Earth and Mars suggests that our planet's recent climate changes have a natural—and not a human-induced—cause, according to one scientist's controversial theory.
In 2005 data from NASA's Mars Global Surveyor and Odyssey missions revealed that the carbon dioxide "ice caps" near Mars's south pole had been diminishing for three summers in a row.
ScienceDaily (Mar. 21, 2003) — Since the late 1970s, the amount of solar radiation the sun emits, during times of quiet sunspot activity, has increased by nearly .05 percent per decade, according to a NASA funded study.
"This trend is important because, if sustained over many decades, it could cause significant climate change," said Richard Willson, a researcher affiliated with NASA's Goddard Institute for Space Studies and Columbia University's Earth Institute, New York.
in June 2006 voiced a "high level of confidence" that Earth is the hottest it has been in at least 400 years, and possibly even the last 2,000 years. Studies indicate that the average global surface temperature has increased by approximately 0.5-1.0°F (0.3-0.6°C) over the last century. This is the largest increase in surface temperature in the last 1,000 years and scientists are predicting an even greater increase over this century.
Photosynthesis (from the Greek φώτο- [photo-], "light," and σύνθεσις [synthesis], "putting together.", "composition") is a process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight.[1] Photosynthesis occurs in plants, algae, and many species of Bacteria, but not in Archaea. Photosynthetic organisms are called photoautotrophs, since it allows them to create their own food. In plants, algae and cyanobacteria photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product.
In other words: Already the natural greenhouse effect is a myth beyond physical reality. The CO2-greenhouse effect, however is a \mirage" [205]. The horror visions of a risen sea level, melting pole caps and developing deserts in North America and in Europe are fictitious consequences of fictitious physical mechanisms as they cannot be seen even in the climate model computations. The emergence of hurricanes and tornados cannot be predicted by climate models, because all of these deviations are ruled out. The main strategy of modern CO2-greenhouse gas defenders seems to hide themselves behind more and more pseudo-explanations, which are not part of the academic education or even of the physics training. A good example are the radiation transport calculations, which are probably not known by many. Another example
are the so-called feedback mechanisms, which are introduced to amplify an effect which is not marginal but does not exist at all. Evidently, the defenders of the CO2-greenhouse thesis refuse to accept any reproducible calculation as an explanation and have resorted to unreproducible ones. A theoretical physicist must complain about a lack of transparency here, and he also has to complain about the style of the scientific discussion, where advocators of the greenhouse thesis claim that the discussion is closed, and others are discrediting justified arguments as a discussion of \questions of yesterday and the day before yesterday". In exact sciences, in particular in theoretical physics, the discussion is never closed and is to be continued ad infinitum, even if there are proofs of theorems available. Regardless of the specific field of studies a minimal basic rule should be fulfilled in natural science, though, even if the scientific fields are methodically as far apart as physics and meteorology: At least among experts, the results and conclusions should be understandable or reproducible. And it
should be strictly distinguished between a theory and a model on the one hand, and between a model and a scenario on the other hand, as clari_ed in the philosophy of science. That means that if conclusions out of computer simulations are to be more than simple speculations, then in addition to the examination of the numerical stability and the estimation of the effects of the many vague input parameters, at least the simplifications of the physical
original equations should be critically exposed. Not the critics have to estimate the effects of the approximation, but the scientists who do the computer simulations.
Global warming is good : : : The net effect of a modest global warming is positive." (Singer). In any case, it is extremely interesting to understand the dynamics and causes of the long-term fluctuations of the climates. However, it was not the purpose of this paper to get into all aspects of the climate variability debate.
The point discussed here was to answer the question, whether the supposed atmospheric effect has a physical basis. This is not the case. In summary, there is no atmospheric greenhouse effect, in particular CO2-greenhouse effect, in theoretical physics and engineering thermodynamics. Thus it is illegitimate to deduce predictions which provide a consulting solution for economics and intergovernmental policy.