Quote:
Originally Posted by **********
Hi H-Tom,
You do realize that this chart comes from an outfit called "American Thinker" which has lots of gems like "How to Make Young People Conservative"? (It's right on the front page!).
Why don't you show charts from NASA instead?

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Actually Mark you should realize that that chart originally comes from this paper:
Quote:
The Younger Dryas cold interval as viewed from central Greenland
Quaternary Science Reviews
Volume 19, Issues 1-5, 1 January 2000, Pages 213-226.
Richard B. Alley
Department of Geosciences and Environment Institute, The Pennsylvania State University, Deike Building, University Park, PA 16802, USA
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It is labelled right there on the chart.
Here is a link to that very paper directly from the NOAA website:
NOAA Paleoclimatology Program - Alley 2000 Greenland Ice Core Data
Just because some "crazy right-wing" site posts the graph does not mean that the graph is not valid. The "crazy right-wing" site did not create the graph - the were simply reposting it from another source.
You do understand that many, many websites operate in this manner, right?
As for your awesome NASA temperature chart - would that be the raw data or is it the adjusted, homogenized data? And how do we know that that chart is even real? There is no source listed on it. That is very bad form. It could be from any "crazy left-wing" website with gems like "How to Make People More Progressive" or other such bullshit.
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