Br Cornelius, on 18 August 2012 - 12:46 PM, said:
There is a current long term warming trend of at least a 100yrs. All external forcings which have been measured would indicate that this runs counter to a pre-existing downward trend and a decline in solar activity. What is causing this upward trend. You are effectively invoking an unknown magical forcing which science has not identified. Until this magical unknown forcing is identified and quantified occams razor prohibits us from assuming it exists when their is a better explanation in the form of CO2.
a few things here, we are in a solar grand maxima on the multi century timescale. to imply which you've done above, that solar activity has declined over the last 100 years is false. I know you will throw out graphs showing TSI and temperature diverging over the last few decades but land temperature does not respond immediately to TSI, furthermore there are different wavelengths within TSI and some vary over time much more than others. variance of Ultraviolet within TSI for instance is much bigger than TSI would indicate and very little research has been done. data is not reliable over the last 100 years to accurately state what the climate has done, its proxies and unreliable instruments, when you combine proxies and instrumental as many warmists have done, into a single graph you are looking for trouble. what you have described above is just a perception of how things work based on assumptions (climate models) and not based on empirical measurements. the "TSI" argument doesn't even cover the planetary and solar magnetic flux, cosmic ray theories. berilium 10 as a proxy for cosmic rays shows a very good correlation with estimated temperatures, so sun's magnetic activity modulating cosmic rays which in turn modulates low clouds affecting ocean temperatures which drives the climate system is a better hypothesis than co2.
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CO2 has been identified and measured as a factor in all previous large climate swings and so it is inferred that it can cause the current changes in response to the rising atmospheric CO2 levels caused by burning fossil fuels.
this is a logical fallacy, correlation does not mean causation. when the oceans warm they release co2, so warming causes a rise in atmospheric co2, so any measurement of co2 and temperatures over millennial timescale does not prove causation, but you know all this already.
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The burden of proof doesn't mean that a thing has to be established without any possible doubt - it means can it adeaquately explain the multiple strands of evidence which are brought to bare on the issue. The body of climate research established that burden of proof to the satisfaction of the overwhelming majority of the scientific community.
The skeptics have an incoherent set of false observations which do not create a coherent explanation for the empirical data and so cannot be said to establish a burden of proof. The statement that climate always changes in a truism, but fails to address the fact that all changes have causes and those causes have been established and have created an over arching climate narrative which explains historic events and can be used to infer future events.
that's your opinion.
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My understanding is that the body of documents were not faked and it is only supposition that says that the claimed document was a fake.
the body of documents were not controversial.
hardly supposition, Heartland says it was forged, Gleick says he received it anonymously, writing style analysis showed it was written by Glieck, mainstream journalist commentary and analysis says it is unlikely to be real given the unprofessional style of writing and bizarre things it mentions.
there is no evidence the document was real, and plenty that says its fake.
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For the sake of argument I will accept it was a faked. It doesn't change the fact that Heartland has coordinated a political campaign to discredit climate science and climate scientists.
disputing and refuting is not the same as discrediting. there is a tendency amongst warmists scientists to view counter and contrary science as ad hominem "attacks", just read mann's and gleicks twitter feed. a scientific disagreement is not an "attack". such behaviour is a sign that they are losing the scientific argument in my opinion.
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Gleick has cast a bit more light on those activities, for that I thank him, but regret him feeling it necessary to supplement the damning record of the Heartland institute with a faked document. For that he got his comeuppance.
there is no "damming record", its just Gleick's paranoid imagination. he made up that crap because he thought that was what the heartland was up to, he didn't have any evidence so he made the evidence up, and shocking that warmists (and "sourcewatch") STILL believe it's true.
Edited by Little Fish, 19 August 2012 - 02:55 PM.