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originally posted by: Greven
a reply to: beezzer
That chart has no source, no date, nor is it possible for "present day" at the extreme right most point on the chart to be after 1950 as the temperature graphed does not reflect the temperature change measured by thermometers, ergo it is misleading or wrong.
You constructed a strawman to defeat this argument. You accused me of being without facts and being biased to get me to defend that strawman.
I will not and have no reason to defend your strawman. Dig it up yourself. Apologize for your behavior.
originally posted by: AugustusMasonicus
a reply to: Greven
Here is a chart (Egyptian era to 2009) which has a similar graph along with annotations and the authors names:
originally posted by: SonOfTheLawOfOne
If weather is the measurement of air temperature, moisture level, cloud cover, wind speed, air pressure, etc. for a given place and a given point in time.... and we can't predict it with a great deal of accuracy for a 48 hour period in a given place and time.... and climate is based on how weather varies over the entire planet for extended periods of time... I fail to see how anyone can arrive at the conclusion that anyone, anywhere on this planet, can in any way whatsoever, predict the climate of the planet when we can't even accurately measure and predict the weather, which is far smaller scale with almost the same set of variables.
On the other hand, evidence of an elevated cosmic ray flux and of a major interstellar dust incursion around 15,800 years B.P. suggest that a cosmic ray wind driven incursion of interstellar dust and gas may have played a key role through its activation of the Sun and alteration of light transmission through the interplanetary medium.
emphasis mine
However, since the climatic system incorporates negative feedback relationships which give it some degree of stability and tend to maintain it in a given climatic state, be it glacial or interglacial, destabilizing perturbations must exceed a certain critical size if they are to effect any large-scale change. Those that are too small in magnitude or duration will fail to change the system's prevailing climatic state. Weather noise probably belongs to this subcritical category.
emphasis mine
It has been suggested that global synchrony might have been achieved through some kind of interhemispheric linking, such as changes in atmospheric CO2 concentration (Corlis, 1982; Manabe and Broccoli, 1985; Johnson and Andrews, 1986). However, by itself, CO2 produces a relatively small greenhouse warming effect. For example, the Vostok ice core measurements of Barnola et al. (1987) show that at the end of the ice age CO2 concentration rose by 25% from 195 ppm to 260 ppm
emphasis mine
Compared with carbon dioxide, methane underwent a much larger percentage increase at the end of the ice age, doubling from about 360 ppb to 725 ppb, as determined from measurements of the Summit, Greenland ice core (Chappellaz et al, 1993). However, since its absolute concentration is 1000 fold less than that of CO2, it is not a major contributor to greenhouse warming. Rather, its increase also is most likely a response to climatic change rather than an instigator, the rise in CH4 concentration being attributed to the increased abundance of vegetation which is a major producer of this gas
However, studies of benthic foraminifera in the Atlantic suggest that NADW production did not flip to its interglacial high-flux mode until around 12,500 14C yrs B.P., or about 500 14C years after the onset of the Bölling (Jansen and Veum, 1990; Veum et al., 1992; Charles and Fairbanks, 1992). So, the onset of NADW production cannot be the agent that caused the rapid warming at the beginning of the Böllin
The dramatic climatic shifts that took place during the Pleistocene may have had an extraterrestrial cause. One indication comes from the occurrence in ice age polar ice of high concentrations of 10Be, a 1.5 Myr half-life isotope generated when cosmic ray protons impact nitrogen and oxygen nuclei in the atmosphere (Raisbeck et al., 1981, 1987; Beer et al., 1984a, 1985, 1988, 1992).
...
For example, the profiles shown in Figures 6 and 7 suggest that the cosmic ray background intensity was quite
high on several past occasions.
A variety of evidence indicates that the core of our Galaxy (Sgr A*), which lies 23,000 light years away, releases intense volleys of relativistic electrons about every 10 4 years or so, and that these fronts, or galactic superwaves, travel radially outward through the Galaxy with such minimal dispersion that at the time of their passage they are able to elevate the cosmic ray background energy density in the solar neighborhood as much as 10^2 to 10^3 fold above current levels.
Galactic superwaves are sufficiently intense and prolonged that they would propel the resulting interstellar/nebular dust and gas into the solar system which would have had a substantial effect on the Earth-Sun climate system.
There is plenty of frozen material both in and around the solar system which could be vaporized and propelled into the inner solar system by a Galactic superwave. Observations of infrared excesses in nearby stars suggest that the solar system, like these other star systems, is surrounded by a light-absorbing dust shell, and may contain about 103 times more dust than had been previously supposed on the basis of IRAS observations of the zodiacal dust cloud (Aumann, 1988)
The unusually high concentrations of HF and HCl acids found in Byrd Station, Antarctic ice dating about 15,800 year B.P., may be residues from one such interstellar dust incursion. Hammer, et al. (1997) note that it is difficult to explain these eight peaks as having a volcanic origin because the combined acid output which spans a period of about a century exceeds by 18 fold the largest volcanic signal observed in the Byrd ice core record and also because the recurrence of the events is unusually regular, a behavior that is not seen in volcanic eruptions.
The subsequent deglacial warming could have been due to a combination of factors: a) destruction of the ozone layer due to the presence of interstellar halides allowing UV penetration, b) increase of the solar constant due to light backscattered from the zodiacal dust cloud, c) shift of the incident solar spectrum to the infrared resulting in greater absorption of the solar beam (reduced scattering from high albedo surfaces), and d) a major increase in the Sun's luminosity and activation of its photosphere and corona due to the dust's effect on the Sun (LaViolette, 1983a, 2005).
Available data suggests that these warmings were initiated neither by changes in atmospheric CO2 concentration nor by a major alteration in the rate of North Atlantic deep-water production. Moreover it is not clear whether these mechanisms are capable of producing warmings and coolings of the kind of magnitude, geographical extent, and abruptness observed at the Termination I boundary. Polar ocean front migrations and weather fluctuations also do not offer an adequate explanation
It seems to me that the climate change debate continues to be obscured by manmade hot air and fury. Deeply entrenched and extremely vociferous positions have been taken on all sides. I’m sort of ‘in the middle of things.’
It remains the firm opinion of this climatologist that the earth’s ever-changing climate is constantly being influenced by naturally-occurring cycles of solar and volcanic activity, sea-surface ocean temperature patterns and, possibly, by cycles of cosmic rays that bombard our planet.
originally posted by: beezzer
a reply to: mbkennel
Enough.
Okay?
Where's your degree in climate science?
MMM?
Nonexistent?
originally posted by: beezzer
a reply to: mbkennel
I know a rocket scientist.
Really.
(It don't make me a rocket scientist)
(really)
originally posted by: LDragonFire
originally posted by: AugustusMasonicus
a reply to: Greven
Here is a chart (Egyptian era to 2009) which has a similar graph along with annotations and the authors names:
Look how slowly temps rose in the past compared to the dramatic rise lately. Can you explain that with your chart?
Each warming trend on your graph took hundreds of years to achieve the peak, so explain why its rising so fast now as per your graph?
originally posted by: Greven
a reply to: beezzer
Yet another crap chart with no source you mean.
Oh right, you just went ahead and believed it to be true just as you did with the last chart which was crap.
Didn't you just complain about science doing that?
Are you ever going to apologize for your libelous remarks and strawmen, or is your behavior representative of your maturity?