Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 6)en>frfr>en By TexanForever Comments: 21013, member since Thu Jun 10, 2004
On Wed Jul 11, 2012 11:40 AM
... Oh Lord help me, I'm doing it again. ... WE'RE ALL GONNA FREEZE TO DEATH! ... Tree rings indicate the earth was much warmer during Roman times and has been COOLING since 138 BC. ... Gore and Liely are safe. ... Crank up the greenhouse before we all die!
. Tree-rings prove climate was WARMER in Roman and Medieval times than it is now - and world has been cooling for 2,000 years
Tree ring study gives first accurate climate reading back to 138BC
By ROB WAUGH, PUBLISHED: 07:22 EST, 11 July 2012 | UPDATED: 07:22 EST, 11 July 2012
Rings in fossilised pine trees have proven that the world was much warmer than previously thought - with measurements dating back to 138BC
Rings in fossilised pine trees have proven that the world was much warmer than previously thought - and the earth has been slowly COOLING for 2,000 years.
Measurements stretching back to 138BC prove that the Earth is slowly cooling due to changes in the distance between the Earth and the sun.
The finding may force scientists to rethink current theories of the impact of global warming.
It is the first time that researchers have been able to accurately measure trends in global temperature over the last two millennia.
Over that time, the world has been getting cooler - and previous estimates, used as the basis for current climate science, are wrong.
Their findings demonstrate that this trend involves a cooling of -0.3°C per millennium due to gradual changes to the position of the sun and an increase in the distance between the Earth and the sun.
‘This figure we calculated may not seem particularly significant,’ says Esper, ‘however, it is also not negligible when compared to global warming, which up to now has been less than 1°C.
'Our results suggest that the large-scale climate reconstruction shown by the Intergovernmental Panel on Climate Change (IPCC) likely underestimate this long-term cooling trend over the past few millennia.’
The finding was based on semi-fossilised tree rings found in Finnish lapland.
Professor Dr. Jan Esper's group at the Institute of Geography at JGU used tree-ring density measurements from sub-fossil pine trees originating from Finnish Lapland to produce a reconstruction reaching back to 138 BC.
In so doing, the researchers have been able for the first time to precisely demonstrate that the long-term trend over the past two millennia has been towards climatic cooling.
‘We found that previous estimates of historical temperatures during the Roman era and the Middle Ages were too low,’ says Esper. ‘Such findings are also significant with regard to climate policy, as they will influence the way today's climate changes are seen in context of historical warm periods.’
The annual growth rings in trees are the most important witnesses over the past 1,000 to 2,000 years as they indicate how warm and cool past climate conditions were.
Researchers from Germany, Finland, Scotland, and Switzerland examined tree-ring density profiles in trees from Finnish Lapland. In this cold environment, trees often collapse into one of the numerous lakes, where they remain well preserved for thousands of years.
Global cooling: It is the first time that researchers have been able to accurately measure trends in global temperature over the last two millennia
The annual growth rings in trees are the most important witnesses over the past 1,000 to 2,000 years as they indicate how warm and cool past climate conditions were
The density measurements correlate closely with the summer temperatures in this area on the edge of the Nordic taiga; the researchers were thus able to create a temperature reconstruction of unprecedented quality.
The reconstruction provides a high-resolution representation of temperature patterns in the Roman and Medieval Warm periods, but also shows the cold phases that occurred during the Migration Period and the later Little Ice Age.
In addition to the cold and warm phases, the new climate curve also exhibits a phenomenon that was not expected in this form.
For the first time, researchers have now been able to use the data derived from tree-rings to precisely calculate a much longer-term cooling trend that has been playing out over the past 2,000 years.
58 Replies to Tree-rings prove climate was WARMER in Roman and Medieval times
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 1)en>frfr>en By pippin Comments: 9782, member since Mon Jan 19, 2009
On Wed Jul 11, 2012 11:59 AM
Everything fluctuates, icecaps, temperatures, sea levels, and flora and fauna, etc. We are killing everything with a pulse, and sooner or later we will kill ourselves off. Then Earth will start all over again in a new period. Climate change bollocks. It's always doing that!
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 4)en>frfr>en By lord_of_the_air Comments: 6739, member since Sun Nov 14, 2004
On Wed Jul 11, 2012 12:52 PM
The alternating warm and cold periods are well attested in the historical record and this has been known for many years.Of course the AGW crowd has tried to deny this with both hands,even though you don't deny things with your hands.The atmosphere is an enormous dynamic system with a huge number of inputs,most of which are not full understood.The AGW mafia would rather no one knew about these inputs,like the ocean cycles or the suns output.CO2 levels are a spit in the ocean compared to these other mechanisms.
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 2)en>frfr>en By Mouse Comments: 21429, member since Wed May 25, 2005
On Wed Jul 11, 2012 12:54 PM
Look this is very simple, random is not random, infinity is not infinity, it only seems random because you don't know and cannot know at this point all the variables.
It is the same thing with climate change, you don't know all the variables, I could fart and start a snow storm in Montana, that is called the butterfly effect.
Trying to mathematically model climate change is a fart in a snow storm and that is all.
Anybody that tells you anything different is a goddamn moron.
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 4)en>frfr>en By iciparis Comments: 4374, member since Tue Jul 18, 2006
On Wed Jul 11, 2012 01:15 PM
pippin wrote:
We are killing everything with a pulse
If I understood what that meant, I might agree with you, but I'm afraid I don't. In fact, it sounds a bit Dr Who to me.
The MWP did actually happen, as did the Roman warm period. Without tree rings or any other proxies, there is sufficient anecdotal evidence from other disciplines that it was a reality - Viking farms in Greenland, vines in northern England and Scotland - these are facts that can't be poo-pooed by the warmists as if they never happened. What is puzzling is that they try to do so in a vain and obsessive effort to convince anyone foolish enough to listen to them that the last century was the warmest in history.
They don't fool me, and never will, unless they come up with some compelling evidence to the contrary, which I doubt they can. Spare a thought though for the young people and children who are being constantly and cynically bombarded at an impressionable age with this guff. One can only hope they will not fall for it.
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 1)en>frfr>en By Mouse Comments: 21429, member since Wed May 25, 2005
On Wed Jul 11, 2012 01:54 PM
Edited by Mouse (76926) on 2012-07-11 13:55:56
This is why we can do cryptologic attacks...because random is not random.
And infinity is not infinity, it is just what we define it as, because as I said...we don't know
Man made climate change is horse shit...a bunch of people running around plugging in what they think they know to come up with a few models to tell you predicatively what they think they know.
re: Tree-rings prove climate was WARMER in Roman and Medieval timesen>frfr>en By pippin Comments: 9782, member since Mon Jan 19, 2009
On Wed Jul 11, 2012 05:04 PM
iciparis wrote:
pippin wrote:
We are killing everything with a pulse
If I understood what that meant, I might agree with you, but I'm afraid I don't. In fact, it sounds a bit Dr Who to me.
The MWP did actually happen, as did the Roman warm period. Without tree rings or any other proxies, there is sufficient anecdotal evidence from other disciplines that it was a reality - Viking farms in Greenland, vines in northern England and Scotland - these are facts that can't be poo-pooed by the warmists as if they never happened. What is puzzling is that they try to do so in a vain and obsessive effort to convince anyone foolish enough to listen to them that the last century was the warmest in history.
They don't fool me, and never will, unless they come up with some compelling evidence to the contrary, which I doubt they can. Spare a thought though for the young people and children who are being constantly and cynically bombarded at an impressionable age with this guff. One can only hope they will not fall for it.
Pulse?
Fuck me! Pulse or heartbeat? Think about it, if you are capable. Cretin.
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 3)en>frfr>en By Nappybonesapart Comments: 18369, member since Fri Aug 27, 2004
On Wed Jul 11, 2012 05:07 PM
Edited by Nappybonesapart (74912) on 2012-07-11 17:19:22
zzzz old news about as old as me , in 1965 there was a paper on this, the medieval warm period 950-1250 was followed by the little ice age with winters that froze the Thames in London
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 2)en>frfr>en By MadRusski Comments: 40591, member since Mon Aug 16, 2004
On Wed Jul 11, 2012 05:15 PM
This is why we can do cryptologic attacks...because random is not random.
You are over your head, Mouse. This is because COMPUTER GENERATED RANDOM is not random. You cannot deny the existence of random in nature. Their models (and the theory claiming that temperature change depends on a single (!!!!!) factor CO2. They are fucking idiots. It does not mean you cannot model in principle. Newton mechanics is pretty accurate
re: Tree-rings prove climate was WARMER in Roman and Medieval timesen>frfr>en By Mouse Comments: 21429, member since Wed May 25, 2005
On Wed Jul 11, 2012 07:56 PM
Edited by Mouse (76926) on 2012-07-11 20:01:45
MadRusski wrote:
This is why we can do cryptologic attacks...because random is not random.
You are over your head, Mouse. This is because COMPUTER GENERATED RANDOM is not random. You cannot deny the existence of random in nature. Their models (and the theory claiming that temperature change depends on a single (!!!!!) factor CO2. They are fucking idiots. It does not mean you cannot model in principle. Newton mechanics is pretty accurate
I was making the point that you can deny it, because all variables are not known.
It has nothing to do with computers other than me making a comment on why you can do cryptology attacks because what you perceive as random, is not random at all.
re: Tree-rings prove climate was WARMER in Roman and Medieval timesen>frfr>en By lookanlearn Comments: 9960, member since Sun Jun 10, 2007
On Wed Jul 11, 2012 08:07 PM
Edited by lookanlearn (80657) on 2012-07-11 20:08:34 P.S.
Edited by lookanlearn (80657) on 2012-07-11 20:18:57 2,000 reasons to measure accurately.
Mouse wrote:
MadRusski wrote:
This is why we can do cryptologic attacks...because random is not random.
You are over your head, Mouse. This is because COMPUTER GENERATED RANDOM is not random. You cannot deny the existence of random in nature. Their models (and the theory claiming that temperature change depends on a single (!!!!!) factor CO2. They are fucking idiots. It does not mean you cannot model in principle. Newton mechanics is pretty accurate
I was making the point that you can deny it, because all variables are not known.
It has nothing to do with computers other than me making a comment on why you can do cryptology attacks because what you perceive as random, is not random at all.
Sorry if that is over your head
The point is; Computers dont`t do infinite.
Global warming could still be true if you had all the data; as the tree-rings are only a small piece of information. Not overwhelming evidence.
What caused any global warming 2,000 years ago should be asked?
A long solar flare up of the sun?
Anyway; minimise the risk is all most right-thinking people are saying.
Be CONSERVATIVE.
Its also the first or second time I have read an intelligent point by MadRuski.
re: Tree-rings prove climate was WARMER in Roman and Medieval times (karma: 3)en>frfr>en By Mouse Comments: 21429, member since Wed May 25, 2005
On Wed Jul 11, 2012 08:24 PM
The point is; Computers dont`t do infinite.
Of course they do, stony brook's Modula-2 RTL had a bug for infinity, which we kindly pointed out to them...but again that was my point, it is a human construct...nothing more.
Global warming could still be true if you had all the data; as the tree-rings are only a small piece of information. Not overwhelming evidence.
And yet you believe as a fact in little green aliens...odd.