Hogeye wrote:Darrel wrote:One example certainly wouldn't be a concensus but it would at least be a baby step.
HOG
I gave nine examples - the ones in the chart.
DAR
As I have told you many times, there are TEN reconstructions in this chart, NOT nine. Can you learn this simple fact?! If you can't get this straight how can you hope to persuade anyone that you actually know something indepth about this chart and the reconstructions it represents?
You haven't challenged them at all.
DAR
Challenged them at all? I posted this chart a long time ago (before you did) and many times since. It is clear you haven't the foggiest idea of what is going on with this chart and this is easy to show. And yet you pretend, quite dishonestly, to have read the "explanations and caveats written by the scientists who created the charts." That's actually impossible. In fact, it is apparent that you don't even know who did these reconstructions or else you wouldn't speak so foolishly and flatly contradict what you have said in the past.
Do you admit that all nine are purported by the researchers who created them to represent global average temperatures?
DAR
Of course not. Only someone who was
completely unfamiliar with not only the work and claims of these scientists, but also simply who they are would make such a ridiculous assertion. Also, you would have to be completely ignorant of even the titles of the papers these scientists have written.
If so, then you admit there was indeed a global MWP. If not, you are challenging the results of nine teams of respected researchers.
DAR
Oh they are respected now? Time to open another can of whoop ass. As many times as you have been roasted the topic of the hockeystick you should have at leasted learned that Mann, and Jones (like almost everyone apparently) doesn't believe that the MWP was global. Did you learn that? I hope so. These are two fellows that you have repeatedly disparaged on this forum.
Now, the above chart shows TEN reconstructions. What follows is the actual authors of the ten papers representing the science behind this chart and the titles of their publications which show that
if you had even taken the time to make yourself cognizant of the titles of their papers you would know that many of them DO NOT refer to global temperatures. I have posted this before so you have no excuse. Be a scientist, study the following and see if you can find if Mann and PD Jones had any involvement in the above chart. Two fellows you just referred to now as "respected researchers" (because you thought they support you).
I'll do some bolding to help you out:
***
1. (dark blue 1000-1991):
P.D. Jones, K.R. Briffa, T.P. Barnett, and S.F.B. Tett (1998). "High-resolution Palaeoclimatic Records for the last Millennium: Interpretation, Integration and Comparison with General Circulation Model Control-run Temperatures". The Holocene 8: 455-471. DOI:10.1191/095968398667194956
2. (blue 1000-1980):
M.E. Mann, R.S. Bradley, and M.K. Hughes (1999).
"Northern Hemisphere Temperatures During the Past Millennium: Inferences, Uncertainties, and Limitations". Geophysical Research Letters 26 (6): 759-762. DOI:10.1029/1999GL900070 (pre-print)
3. (light blue 1000-1965): Crowley and Lowery (2000).
"Northern Hemisphere Temperature Reconstruction". Ambio 29: 51-54. Modified as published in Crowley (2000). "Causes of Climate Change Over the Past 1000 Years". Science 289: 270-277. DOI:10.1126/science.289.5477.270 (data available from NCDC : [2])
4. (lightest blue 1402-1960): K.R. Briffa, T.J. Osborn, F.H. Schweingruber, I.C. Harris,
P.D. Jones, S.G. Shiyatov, S.G. and E.A. Vaganov (2001). "Low-frequency temperature variations from a
northern tree-ring density network". J. Geophys. Res. 106: 2929-2941.DOI:10.1029/2000JD900617
5. (light green 831-1992): J. Esper, E.R. Cook, and F.H. Schweingruber (2002). "Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability". Science 295 (5563): 2250-2253. DOI:10.1126/science.1066208
6. (yellow 200-1980):
M.E. Mann and P.D. Jones (2003). "Global Surface Temperatures over the Past Two Millennia". Geophysical Research Letters 30 (15): 1820. DOI:10.1029/2003GL017814.
7. (orange 200-1995):
P.D. Jones and M.E. Mann (2004). "Climate Over Past Millennia". Reviews of Geophysics 42: RG2002. DOI:10.1029/2003RG000143
8. (red-orange 1500-1980): S. Huang (2004). "Merging Information from Different Resources for New Insights into Climate Change in the Past and Future". Geophys. Res Lett. 31: L13205. DOI:10.1029/2004GL019781
9. (red 1-1979): A. Moberg, D.M. Sonechkin, K. Holmgren, N.M. Datsenko and W. Karlén (2005). "Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data". Nature 443: 613-617. DOI:10.1038/nature03265
10. (dark red 1600-1990): J.H. Oerlemans (2005). "Extracting a Climate Signal from 169 Glacier Records". Science 308: 675-677. DOI:10.1126/science.1107046
Source.
HOG
But all nine teams claim that the graphs presented represent global average temperature as best they can determine them.
DAR
As my dad used to say: "Better to be silent and thought a fool than open your mouth and remove all doubt."
The IPCC is a political group with some govt appointed scientists.
DAR
You're funny.
"According to a flash animation on the front page of the IPCC's website, the people contributing to the IPCC 4AR [that's the latest report] include:
* 2500+ scientific expert reviewers
* 850+ Contributing authors
* 450+ lead authors
from over 130 countries, contributing for the last 6 years."
link
The scientists don't write the reports, and their comments are routinely edited out or ignored.
DAR
Yes of course, it's all clearly a set up job. Here are the key conclusions of their latest report:
***
The Working Group I report was published on February 2, 2007. Its key conclusions were that:
* Global warming is occurring
* Hotter temperatures and rises in sea level "would continue for centuries" no matter how much humans control their pollution.[7]
* The probability that this is caused by natural climatic processes is less than 5%
* The probability that this is caused by human emissions of greenhouse gases is over 90%
* World temperatures will probably rise by 1.8 to 4°C (3.25 to 7.2°F) during the 21st century and that:
* Sea levels will probably rise by 28 to 43cm (11 to 17 inches)
* It is more than 66% certain that there will be an increase in droughts, tropical cyclones and extreme high tides.
* Both past and future anthropogenic carbon dioxide emissions will continue to contribute to warming and sea level rise for more than a millennium.
* The atmospheric concentration of carbon dioxide in 2005 exceeds by far the natural range over the last 650,000 years. The atmospheric concentration of methane in 2005 exceeds by far the natural range over the last 650,000 years.
--ibid