Hogeye wrote:Whatever Diamond's opinion is about global warming,...
DAR
His opinion is that however Greenland was modified by your little MWP, it is insignificant to the fact that "global warming [is] a threat that could ruin modern civilization." You set, I spike.
his history of Greenland presented in "Collapse" indicates that there was significantly less ice than today during the MWP.
DAR
I don't believe you. Define "significantly."
And the oceans were not 30 feet higher.
DAR
No one says they were and no one suggests they should have been, other than you. Stop making things up.
(You might want to read the book rather than cherry-picking one opinion of the author that happens to agree with you.)
DAR
Hypocrite. That's exactly what you are trying, unsuccessfully, to do.
The MWP lasted 3-4 centuries, a lot longer than the modern late 20th century blip.
DAR
Irrelevant. Not global.
No one knows the rate of temp increase during the MWP.
DAR
Irrelevant. Not global. We know the rate today and we know the rate of increase and amount of gases (such methane) are unprecedented in a multi-million year context. And we know who did it.
Greenland had a lot less ice cover during the MWP than it does today.
DAR
Define "a lot" and then back the claim up with something other than anecdotes from sea captains and medieval Greenland salesman.
No doubt many other places did too. If 90% of the world's glaciers melted, it may be comparable to the peak of the MWP.
DAR
Total utter and complete
horseshit. This one is real deep from some unsuspecting horse's colon. Can you find any numbskull on the planet that would agree with you on this absolutely absurd and idiotic claim? I doubt that you can. And there are a lot of numbskulls you have access to.
So why didn't the oceans rise drastically back then?
DAR
Here is why, pay attention (just kidding, I know you have no interest whatsoever in the truth of the matter).
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"Medieval Warm Period was a time of unusually warm weather during the European Medieval period. Initial research on the MWP and the following Little Ice Age (LIA) was largely done in Europe, where the phenomenon was most obvious and clearly documented.
It was initially believed that the temperature changes were global. However, this view has been questioned; the 2001 IPCC report summarises this research, saying: "…current evidence does not support globally synchronous periods of anomalous cold or warmth over this timeframe, and the conventional terms of 'Little Ice Age' and 'Medieval Warm Period' appear to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries".
link
To address the theme of this thread (unfortunately I spend so much time swatting absurd insane material this takes away time I could spend speaking intelligently as with adults), I have some sympathy with the teachers on this issue. They don't want another war in the classrooms. This country is filled with so many uninformed, misinformed rightwing crackpots that it is unfortunately true that this show and it's straightforward scientific claims would stir up controversy. This is afterall a country where FOX news is a popular source and Limbaugh reaches (supposedly) 20 million vacant heads per week. Hogeye case is special. He didn't get this lost and confused on this issue without a great deal of study and careful indoctrination with the most ridiculous material available. He feeds his mind with this crap constantly, thus it bubbles up hear constantly. I call it Studied-Stupid and see it in the occasional devoted religious fundie.