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originally posted by: Kali74
a reply to: AugustusMasonicus
They aren't deceptive methods, that is the point. They are methods widely, almost exclusively used in data presentation.
A frequent conclusion based on study of individual records from the so-called Medieval Warm Period (∼1000-1300 A.D.) is that the present warmth of the 20 th century is not unusual and therefore cannot be taken as an indication of forced climate change from greenhouse gas emissions. This conclusion is not supported by published composites of Northern Hemisphere climate change, but the conclusions of such syntheses are often either ignored or challenged. In this paper, we revisit the controversy by incorporating additional time series not used in earlier hemispheric compilations. Another difference is that the present reconstruction uses records that are only 900–1000 years long, thereby, avoiding the potential problem of uncertainties introduced by using different numbers of records at different times. Despite clear evidence for Medieval warmth greater than present in some individual records, the new hemispheric composite supports the principal conclusion of earlier hemispheric reconstructions and, furthermore, indicates that maximum Medieval warmth was restricted to two-three 20–30 year intervals, with composite values during these times being only comparable to the mid-20 th century warm time interval. Failure to substantiate hemispheric warmth greater than the present consistently occurs in composites because there are significant offsets in timing of warmth in different regions; ignoring these offsets can lead to serious errors concerning inferences about the magnitude of Medieval warmth and its relevance to interpretation of late 20 th century warming.
Some of the models suggest to Dr. Maslowski that there is a 75% chance that the entire north polar ice cap during summer... during some of the summer months could be completely ice free within the next 5 to 7 years. Bob used a figure of 2030, and the volumetric analysis leads this... Dr. Maslowski to make that projection.
originally posted by: Greven
What about deception on the part of the opposition, as illustrated in this post?
I have yet to see solid proof that, for example, Al Gore said the ice cap would be melted.
So how about it - where did Gore say Florida would be underwater?
originally posted by: AugustusMasonicus
In his mockumentary he shows Florida being inundated.
No. Greenland has not been green for many tens of thousands of years (if ever).
It was during the medieval warming period when Greenland was actually green. Is Greenland green today?
Of course, when you tell someone that they will be travelling with you to a place that is barren, cold and inhospitable you may have trouble convincing even a Viking to come with you. So instead, Erik (according to popular legend) called the island Greenland and instead painted the island as being a wonderful place to settle.
There are other theories as to how Greenland got its name. One theory is that the “green” in Greenland is actually a translation error. The word “grunt” actually means ground and it could be that Greenland was meant to be named Gruntland (or ground land).