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Tree-rings prove climate was WARMER in Roman and Medieval times than it is now
dailymail. ^ | 11 July 2012 | By Science Reporter

Posted on 07/21/2012 8:40:01 PM PDT by dennisw

How did the Romans grow grapes in northern England? Perhaps because it was warmer than we thought.

A study suggests the Britain of 2,000 years ago experienced a lengthy period of hotter summers than today.

German researchers used data from tree rings – a key indicator of past climate – to claim the world has been on a ‘long-term cooling trend’ for two millennia until the global warming of the twentieth century.

This cooling was punctuated by a couple of warm spells.

These are the Medieval Warm Period, which is well known, but also a period during the toga-wearing Roman times when temperatures were apparently 1 deg C warmer than now.

They say the very warm period during the years 21 to 50AD has been underestimated by climate scientists.

Lead author Professor Dr Jan Esper of Johannes Gutenberg University in Mainz said: ‘We found that previous estimates of historical temperatures during the Roman era and the Middle Ages were too low.

In general the scientists found a slow cooling of 0.6C over 2,000 years, which they attributed to changes in the Earth’s orbit which took it further away from the Sun.

The study is published in Nature Climate Change.

It is based on measurements stretching back to 138BC.

(Excerpt) Read more at dailymail.co.uk ...


TOPICS: Business/Economy; News/Current Events
KEYWORDS: godsgravesglyphs; romanempire
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1 posted on 07/21/2012 8:40:09 PM PDT by dennisw
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To: dennisw
In general the scientists found a slow cooling of 0.6C over 2,000 years,
2 posted on 07/21/2012 8:40:58 PM PDT by dennisw
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To: dennisw
In general the scientists found a slow cooling of 0.6C over the last 2,000 years
3 posted on 07/21/2012 8:42:16 PM PDT by dennisw
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To: dennisw

So can we call all those trees an “inconvenient growth”?


4 posted on 07/21/2012 8:44:11 PM PDT by samtheman (Obama. Mugabe. Chavez. (Obamugavez))
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To: dennisw

Youve heard of their bread-and-circuses? This was a tree-ring circus.


5 posted on 07/21/2012 8:47:39 PM PDT by the invisib1e hand (If Bill Ayers had a son, he'd look like James Holmes.)
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To: dennisw

This just can’t be...Al Gore said so!


6 posted on 07/21/2012 8:48:17 PM PDT by South40 ("Islam has a proud tradition of tolerance." Hussein Obama, Cairo, Egypt, June 4, 2009)
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To: samtheman

Reply by Al Bore: “Who ya’gona believe Me or some fracking dead tree?.”


7 posted on 07/21/2012 8:49:25 PM PDT by TaMoDee ( Lassez les bons temps rouler dans les 2012! Allez Pack!)
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To: dennisw
In general the scientists found a slow cooling of 0.6C over 2,000 years, which they attributed to changes in the Earth’s orbit which took it further away from the Sun.

Is this creep of earth's orbit away from the sun still going on now?

8 posted on 07/21/2012 8:52:06 PM PDT by HiTech RedNeck (let me ABOs run loose, lew (or is that lou?))
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To: the invisib1e hand

>?>Youve heard of their bread-and-circuses? This was a tree-ring circus<<

Now how long have you been waiting to use that???? ;) LOL


9 posted on 07/21/2012 8:54:30 PM PDT by freedumb2003 (obozo could bring back literal slavery with chains and still he will get 85+% of the black vote)
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To: dennisw
German researchers used data from tree rings – a key indicator of past climate


Live by the tree ring, die by the tree ring. Have you ever seen a more self confident idiot? Not to mention the millions of tax dollars Michael Mann has scammed for his manipulated research. German scientists are smarter than this smug little turd

AngloSphere scientists are behind 90% of global warming "research" and agit-prop.

10 posted on 07/21/2012 9:04:55 PM PDT by dennisw
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To: dennisw

The really sad thing about everything related to AGW, is that most of this was known decades ago.

Written records alone bear witness to the climate at those times.

All of this money wasted on reestablishing what is already known.


11 posted on 07/21/2012 9:05:29 PM PDT by Puckster
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To: dennisw
I can't tell you the temperature accurately without looking at a thermometer, so how do they determine the temperature of the earth, when the thermometer had not even been invented yet?
12 posted on 07/21/2012 9:06:20 PM PDT by fini
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To: dennisw

Milankovitch Cycles.

I discovered ‘em independently. (Seriously, figured it all out meeself.) Brought my idea to the attention of one of my college professors, and he dismissed it.

I didn’t have the math to prove it, but it’s not hard to envision it.

Then, two years later...I found out a Russian Mathematician had conceived of it and proved it a century before. :)

Our sun has cycles. The hydrologic cycle cools/warms Earth. Water is a miracle element: it retains heat hundreds of times better than CO2. Yet...CO2 gets blamed. Water vapor is a miracle of water, and changes our albedo when the Earth has “too much” of it, and that allows the cloud to cool and DUMP the water, clearing the sky, allowing the sun to heat the ocean surface, causing evaporation, and the cycle begins anew as the mists rise to form clouds.

God designed it that way. And it’s working perfectly.

Michael Crichton (the noted author) commented on the global warming hysteria. He didn’t buy any of it. Said that man isn’t powerful/important enough to cause AGW (anthropogenic global warming).


13 posted on 07/21/2012 9:14:20 PM PDT by sauron ("Truth is hate to those who hate Truth" --unknown)
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To: dennisw

Milankovitch Cycles.

I discovered ‘em independently. (Seriously, figured it all out meeself.) Brought my idea to the attention of one of my college professors, and he dismissed it.

I didn’t have the math to prove it, but it’s not hard to envision it.

Then, two years later...I found out a Russian Mathematician had conceived of it and proved it a century before. :)

Our sun has cycles. The hydrologic cycle cools/warms Earth. Water is a miracle element: it retains heat hundreds of times better than CO2. Yet...CO2 gets blamed. Water vapor is a miracle of water, and changes our albedo when the Earth has “too much” of it, and that allows the cloud to cool and DUMP the water, clearing the sky, allowing the sun to heat the ocean surface, causing evaporation, and the cycle begins anew as the mists rise to form clouds.

God designed it that way. And it’s working perfectly.

Michael Crichton (the noted author) commented on the global warming hysteria. He didn’t buy any of it. Said that man isn’t powerful/important enough to cause AGW (anthropogenic global warming).


14 posted on 07/21/2012 9:14:40 PM PDT by sauron ("Truth is hate to those who hate Truth" --unknown)
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To: dennisw
Of course it was warmer in Roman times.

The Romans were well known to be polluters of the environment.

They used wood to heat their homes and cook their food.

A huge carbon footprint.


15 posted on 07/21/2012 9:18:19 PM PDT by garjog
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To: fini
That's always an inconvenient little fact that nobody like to mention.

I challenge anyone to go back to the date and place of any key event in the first third of our nation's history (July 4, 1776; the Battle of Yorktown, the start of the Lewis & Clark expedition, the Battle of Gettysburg, etc.) and tell me what the ambient air temperature, barometric pressure, and relative humidity was at that time and place.

Good luck with that.

16 posted on 07/21/2012 9:24:45 PM PDT by Alberta's Child ("If you touch my junk, I'm gonna have you arrested.")
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To: dennisw; SunkenCiv
That's a mighty singular tree ring in the photo. It's hardly aged over the past millennium.
17 posted on 07/21/2012 9:31:08 PM PDT by BIGLOOK (Hold.....hold......hold.......)
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To: garjog

Not to mention the chariots all over the place.


18 posted on 07/21/2012 9:32:20 PM PDT by irishtenor (Everything in moderation, however, too much whiskey is just enough... Mark Twain)
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To: dennisw

Yeah but there’s no money of power to be had in pointing this out.


19 posted on 07/21/2012 9:33:56 PM PDT by NoLibZone (We must get down on our knees each day and thank God that McCain/Palin didn't win in '08. Right?)
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To: Alberta's Child
"...the start of the Lewis & Clark expedition..."

Sorry...I just couldn't afford to purchase a temp measuring device before we left...

20 posted on 07/21/2012 10:17:11 PM PDT by SuperLuminal (Where is another agitator for republicanism like Sam Adams when we need him?)
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