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Originally posted by ElectricUniverse
Sorry but the AGW argument has always been that "CO2 is the main reason for Climate Change" and you even got scientists claiming "CO2 is more important than any natural factor including the Sun"....
Originally posted by Essan
However, at present Arctic regions have less ice cover than at any time since at least before the MWP ............
Originally posted by ElectricUniverse
Originally posted by Essan
However, at present Arctic regions have less ice cover than at any time since at least before the MWP ............
Essan....that's not true and you know it because i have shown to you several research papers that show global temperatures during the MWP were WARMER than it has been in the 20th, or 21st century....
Originally posted by Essan
I'm not talking about global temperature, I'm talling about Arctic ice cover - specifically the Baffin region. 2 very different things. It can be globally warmer but the Arctic can still be colder. Do you dispute this?
Originally posted by Essan
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IMO there shoud be growing ice caps on Baffin, not shrinking ones. And therefore I ask myself why?
Originally posted by ElectricUniverse
....The Arctic regions will almost certainly still exist for a long time. Are you disputing the fact that the Arctic, and Antarctic have CHANGED and there have been times in the past when glaciers had receeded more than they are now?.... Do you dispute this fact?.....
Originally posted by Essan
............
IMO there shoud be growing ice caps on Baffin, not shrinking ones. And therefore I ask myself why?
You see, people like you don't want to accept the fact that there are factors that affect the climate which do not happen in any schedule made up by man....
You seem to think that nature must follow YOUR schedule in order for Climate change to be natural.... Sorry Essan but that is not the way the Universe works.....
Do you not understand the fact that the Solar System has entered a new region of space and even in 1978 it was predicted that in the "near future" there could be dramatic Climate Change?.... which is exactly what has occurrred.
Originally posted by TheWalkingFox
Yes, you were lying with your claim that I did not excerpt from the source.
Originally posted by Essan
Based on current orbital parameters we would expect to see ice sheets increase over the Arctic over a multi centenial period - this does not exclude shorter term reductions.
Originally posted by Essan
It's possible the current reduction - data indicates this to be the lowest extent of ice cover since before the MWP - may be entirely due to natural reasons. On the other hand, we do have a possible smoking gun and must therefore consider that as a possibilty.
Originally posted by Essan
I know that that is the case.
Originally posted by Essan
Whereas you KNOW that climate chnages accoridng to YOUR schedule and you cannot accept any other possibility.
Originally posted by Essan
How can you be so absolutely sure that nothing humans do has any effect on climate whatsoever and that everything is due to other factors - but only the factors you personally believe in?
Originally posted by Essan
Can you not countenance the possibilty that some human actiovity may have an effect, however small?
Originally posted by Essan
No, I don't. The space aliens don't speak to me
Surprise In Earth's Upper Atmosphere: Mode Of Energy Transfer From The Solar Wind
www.sciencedaily.com
"Its like something else is heating the atmosphere besides the sun. This discovery is like finding it got hotter when the sun went down," said Larry Lyons, UCLA professor of atmospheric and oceanic sciences and a co-author of the research, which is in press in two companion papers in the Journal of Geophysical Research.
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"We all have thought for our entire careers — I learned it as a graduate student — that this energy transfer rate is primarily controlled by the direction of the interplanetary magnetic field," Lyons said. "The closer to southward-pointing the magnetic field is, the stronger the energy transfer rate is, and the stronger the magnetic field is in that direction. If it is both southward and big, the energy transfer rate is even bigger."
However, Lyons, Kim and their colleagues analyzed radar data that measure the strength of the interaction by measuring flows in the ionosphere, the part of Earth's upper atmosphere ionized by solar radiation. The results surprised them.
"Any space physicist, including me, would have said a year ago there could not be substorms when the interplanetary magnetic field was staying northward, but that's wrong," Lyons said. "Generally, it's correct, but when you have a fluctuating interplanetary magnetic field, you can have substorms going off once per hour.
"Heejeong used detailed statistical analysis to prove this phenomenon is real. Convection in the magnetosphere and ionosphere can be strongly driven by these fluctuations, independent of the direction of the interplanetary magnetic field."
Space radiation hits record high
Now, the influx of galactic cosmic rays into our solar system has reached a record high. Measurements by NASA's Advanced Composition Explorer (ACE) spacecraft indicate that cosmic rays are 19 per cent more abundant than any previous level seen since space flight began a half century ago."The space era has so far experienced a time of relatively low cosmic ray activity," says Richard Mewaldt of Caltech, who is a member of the ACE team. "We may now be returning to levels typical of past centuries."
Voyager makes an interstellar discovery
The solar system is passing through an interstellar cloud that physics says should not exist. In the Dec. 24th issue of Nature, a team of scientists reveal how NASA's Voyager spacecraft have solved the mystery.
"Using data from Voyager, we have discovered a strong magnetic field just outside the solar system," explains lead author Merav Opher, a NASA Heliophysics Guest Investigator from George Mason University. "This magnetic field holds the interstellar cloud together and solves the long-standing puzzle of how it can exist at all."
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"Voyager data show that the Fluff is much more strongly magnetized than anyone had previously suspected—between 4 and 5 microgauss*," says Opher. "This magnetic field can provide the extra pressure required to resist destruction."
Is the solar system entering a nearby interstellar cloud
Vidal-Madjar, A.; Laurent, C.; Bruston, P.; Audouze, J.
Astrophysical Journal, Part 1, vol. 223, July 15, 1978, p. 589-600.
Observations indicating a hydrogen density gradient in the vicinity of the solar system are reviewed, particularly observations of an anisotropy in the far-UV flux around 950 A from the brightest and closest O and B stars as well as a variation in the local D/H ratio along the lines of sight to Alpha Cen and Alpha Aur. Possible mechanisms that may strongly affect the observed D/H ratio on a very small scale are considered, selected radiation pressure is proposed as the most likely mechanism for deuterium separation, and it is shown that this mechanism would be effective only if the density gradient of the nearby interstellar medium has remained stable for at least about 10 million years. This time scale is taken to imply the existence of a nearby (less than 2 pc distant) interstellar cloud. Observational arguments in favor of such a cloud are presented, and implications of the presence of a nearby cloud are discussed, including possible changes in terrestrial climate. It is suggested that the postulated interstellar cloud should encounter the solar system at some unspecified time in the near future and might have a drastic influence on terrestrial climate in the next 10,000 years.
Originally posted by TheWalkingFox
As you apparently know, the Second Law applies to a closed system.
Ergo, by applying the second law to Earth - the globe in "global" - they are making the claim that the earth is a closed system.
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Originally posted by ElectricUniverse
Let's keep showing Essan, and some others what are the real causes of the ongoing Climate Change the Earth, and all planets in the Solar System, and even the changes the Sun is experiencing.
NOWHERE do they say what you are claiming
The atmospheric greenhouse effect,
...
essentially describes a fictitious mechanism, in which a planetary atmosphere acts as a heat pump driven by an environment that is radiatively interacting with but radiatively equilibrated to the atmospheric system. According to the second law of thermodynamics such a planetary machine can never exist.
What they are "implying" is since ANY CLOSED SYSTEM WOULD DETERIORATE BY ITSELF, AND SINCE THE EARTH'S SYSTEM IS NOT DETERIORATING THE EARTH IS NOT A CLOSED SYSTEM AND AGW IS A FICTITIOUS CLAIM.....
The Second Law of Thermodynamics is commonly known as the Law of Increased Entropy. While quantity remains the same (First Law), the quality of matter/energy deteriorates gradually over time. How so? Usable energy is inevitably used for productivity, growth and repair. In the process, usable energy is converted into unusable energy. Thus, usable energy is irretrievably lost in the form of unusable energy.
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From this short tutorial, the scientists go on to show the vast difference in physical laws between real greenhouses and Earths atmosphere. They expose the fallacies in accepted definitions of greenhouse effect from several popular sources. "It is not trapped infrared radiation which explains the warming phenomenon in a real greenhouse but the suppression of air cooling." Gerlich and Tscheuschner explain Earths atmosphere does not function in the same way, nor does it function in the way global-warming alarmists describe as "transparent for visible light but opaque for infrared radiation."
Then they make the point that climate models used to predict catastrophic global warming violate the second law of thermodynamics. The law states any closed system left to itself will continually deteriorate toward a more chaotic state. The German scientists illustrate how the idea of heat flow from atmospheric greenhouse gases to the warmer ground violates this principle. There would have to be a heat pump mechanism in perpetual motion in the atmosphere to transfer heat from a low to a high temperature reservoir, and such a machine cannot exist. They call the greenhouse effect a fictitious mechanism. "The claim that CO2 emissions give rise to anthropogenic [man-made] climate changes has no physical basis."
Throughout the paper the authors show that those who advocate the greenhouse gas theory use faulty calculations and guesstimates to arrive at their catastrophic conjectures, and though Gerlich and Tscheuschner make no specific accusation, they point out how many respected scientists have blamed alarmists for intentional fraud rather than mere scientific error. They also reveal that the idea of a greenhouse effect is modern and never mentioned in any fundamental work of thermodynamics, physical kinetics, or radiation theory. According to them, it is impossible to replicate forecasts made by climate modelers' computer simulations with any known scientific formulae.
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