Climate 'warmest for millennium' - The Orange Mane

Spider · 02-10-2006, 06:35 PM

http://news.bbc.co.uk/1/hi/sci/tech/4698652.stm

Climate 'warmest for millennium'
By Paul Rincon
BBC News science reporter

Sunbathers during 2005 Paris heatwave, AP
The last 100 years is more striking than either the Medieval Warm Period or Little Ice Age
Timothy Osborn, UEA
In the late 20th Century, the northern hemisphere experienced its most widespread warmth for 1,200 years, according to the journal Science.

The findings support evidence pointing to unprecedented recent warming of the climate linked to greenhouse emissions.

University of East Anglia researchers measured changes in fossil shells, tree rings, ice cores and other past temperature records or "proxies".

They also looked at people's diaries from the last 750 years.

Timothy Osborn and Keith Briffa of UEA analysed instrument measurements of temperature from 1856 onwards to establish the geographic extent of recent warming.

Then they compared this data with evidence dating back as far as AD 800.

The analysis confirmed periods of significant warmth in the Northern Hemisphere from AD 890 - 1170 (the so-called "Medieval Warm Period") and for much colder periods from 1580 - 1850 (the "Little Ice Age").

Natural records

The UEA team showed that the present warm period is the most widespread temperature anomaly of any kind since the ninth century.

"The last 100 years is more striking than either [the Medieval Warm Period or Little Ice Age]. It is a period of widespread warmth affecting nearly all the records that we analysed from the same time," co-author Timothy Osborn told the BBC.

Osborn and Briffa used 14 sets of temperature records from different locations across the Northern Hemisphere.

The records included long life evergreen trees growing in Scandinavia, Siberia and the Rockies which had been cored to reveal the patterns of wide and narrow tree rings over time. Wider rings related to warmer temperatures.

The chemical composition of ice from cores drilled in the Greenland ice sheets revealed which years were warmer than others.

Dear diary

The researchers used proxy data developed from the diaries of people living in the Netherlands and Belgium during the past 750 years that revealed, for example, the years when the canals froze.

"These records extend over many centuries and even thousands of years. We simply counted how many of those records indicated that, in any one year, temperatures were warmer than average for the region they came from," said Dr Osborn.

Professor John Waterhouse, director of the Environmental Sciences Research Centre Anglia Ruskin University in Cambridge commented: "Although we're getting increasingly accurate measurements of present-day temperature, we've got nothing like that from the past to compare those with.

"There's much uncertainty in past reconstructions. You've got to look at the reconstructed data in the past in light of the likely errors that those data have."

But he added: "As we get more and more evidence in, it is looking as if the current period is the warmest for over 1,000 years."

In November, Science published a paper showing atmospheric levels of the greenhouse gases carbon dioxide and methane are higher now than at any time in the past 650,000 years.

L.A. BRONCOS FAN · 02-10-2006, 08:19 PM

But Spider:

Everybody knows global warming doesn't really exist.

It's just more of that damn librul propaganda designed to slander our God-fearin' president and those good business folk who give him money.

Just like the dinosaurs are nuthin' but a hoax created by librul atheists to try to make us not believe in Jesus!

Spider · 02-10-2006, 08:55 PM

Quote:

Originally Posted by L.A. BRONCOS FAN

But Spider:

Everybody knows global warming doesn't really exist.

It's just more of that damn librul propaganda designed to slander our God-fearin' president and those good business folk who give him money.

Just like the dinosaurs are nuthin' but a hoax created by librul atheists to try to make us not believe in Jesus!

Diabolical bastards those liburls are

L.A. BRONCOS FAN · 02-12-2006, 09:24 PM

Hotrod · 02-13-2006, 08:04 AM

Global warming my ass its again 20 fricking below.

Spider · 02-13-2006, 08:07 AM

Quote:

Originally Posted by Hotrod

Global warming my ass its again 20 fricking below.

it got to -45 wind chill in southern Wyoming , while we was above zero , -20 below in the colorado rockies is damn near bikini weather , stop your bítching and wait for the real cold

Spider · 02-13-2006, 08:08 AM

but then cold spells happen , what you will find odd is , they dont last as long as they used to ........

Hotrod · 02-13-2006, 09:27 AM

Quote:

Originally Posted by §Pide®

but then cold spells happen , what you will find odd is , they dont last as long as they used to ........

Actually thats not true here. I was talking to some local folks today and one of them made a good point. While we usually have 2-3 weeks sometime around early to mid Feb that it gets down to around -20 to -40 this year we've been running +20 to -30 since mid December.

Up here this kind of long cold winter is known as a 'cleaning' winter. It seems to clean out alot of TX/CA transplants

Spider · 02-13-2006, 09:38 AM

Quote:

Originally Posted by Hotrod

Actually thats not true here. I was talking to some local folks today and one of them made a good point. While we usually have 2-3 weeks sometime around early to mid Feb that it gets down to around -20 to -40 this year we've been running +20 to -30 since mid December.

Up here this kind of long cold winter is known as a 'cleaning' winter. It seems to clean out alot of TX/CA transplants

could be , many different weathr patterns in the rockies ...... I shouldnt have lumped all areas the same

Garcia Bronco · 02-13-2006, 10:00 AM

No politican has an aggressive environment policy. they'll have to be a complete disaster for that to happen.

Garcia Bronco · 02-13-2006, 10:02 AM

"Professor John Waterhouse, director of the Environmental Sciences Research Centre Anglia Ruskin University in Cambridge commented: "Although we're getting increasingly accurate measurements of present-day temperature, we've got nothing like that from the past to compare those with."

This is the sticking point for many that claim temperatures from the past to be inaccurately measured. It's a hard sell.

TheDave · 02-13-2006, 10:15 AM

Quote:

Originally Posted by Hotrod

Actually thats not true here. I was talking to some local folks today and one of them made a good point. While we usually have 2-3 weeks sometime around early to mid Feb that it gets down to around -20 to -40 this year we've been running +20 to -30 since mid December.

Up here this kind of long cold winter is known as a 'cleaning' winter. It seems to clean out alot of TX/CA transplants

Where do you live.... Just need to scratch another place off the "Will consider moving there" list

-20 to -40 f*** That!!!!

Spider · 02-13-2006, 10:15 AM

Quote:

Originally Posted by Garcia Bronco

"Professor John Waterhouse, director of the Environmental Sciences Research Centre Anglia Ruskin University in Cambridge commented: "Although we're getting increasingly accurate measurements of present-day temperature, we've got nothing like that from the past to compare those with."

This is the sticking point for many that claim temperatures from the past to be inaccurately measured. It's a hard sell.

interesting point .......

Hotrod · 02-13-2006, 11:14 AM

Quote:

Originally Posted by TheDave

Where do you live.... Just need to scratch another place off the "Will consider moving there" list

-20 to -40 f*** That!!!!

Gunnison Colorado, Its a high mtn valley so basically once the cold air settles into the valley it cant escape. Or some BS like that

TheDave · 02-13-2006, 11:17 AM

Quote:

Originally Posted by Hotrod

Gunnison Colorado, Its a high mtn valley so basically once the cold air settles into the valley it cant escape. Or some BS like that

time to move out of Brokeback

Spider · 02-13-2006, 11:21 AM

Bikini weather , you sissy

Hotrod · 02-13-2006, 11:23 AM

Quote:

Originally Posted by §Pide®

Bikini weather , you sissy

We were out running around town this weekend and saw a dude wearing shorts and a t-shirt. The bank down the street said it was +4. That dude is a fine example that theres a fine line between tough and stupid

Spider · 02-13-2006, 11:26 AM

Quote:

Originally Posted by Hotrod

We were out running around town this weekend and saw a dude wearing shorts and a t-shirt. The bank down the street said it was +4. That dude is a fine example that theres a fine line between tough and stupid

, I know i was in a teeshirt last week , wind whipping around , Clyde ( ver y old man ) said , you bastard you aint tough , you are just insane .......

baja · 02-13-2006, 12:36 PM

Quote:

Originally Posted by Hotrod

Gunnison Colorado, Its a high mtn valley so basically once the cold air settles into the valley it cant escape. Or some BS like that

been through there many times hell it's cold in the summer....

Hotrod · 02-13-2006, 01:58 PM

Quote:

Originally Posted by baja fan

been through there many times hell it's cold in the summer....

I dont know when you get used to these winters 70's feel pretty darn hot in the summer.

Bronco_Beerslug · 02-13-2006, 02:25 PM

Quote:

Originally Posted by Hotrod

Global warming my ass its again 20 fricking below.

Damn Colorado hill weenie

. Working in Craig in '77 it was -45 for 4 days. Working outside we were burning scaffolding planks in fire barrels trying not to freeze to death.

Hotrod · 02-13-2006, 02:27 PM

Quote:

Originally Posted by Bronco_Beerslug

Damn Colorado hill weenie

. Working in Craig in '77 it was -45 for 4 days. Working outside we were burning scaffolding planks in fire barrels trying not to freeze to death.

I usually dont condone playing hookie but in that case you should have gotten the flu kindda suddenly.

TailgateNut · 02-13-2006, 02:40 PM

Quote:

Originally Posted by Hotrod

Gunnison Colorado, Its a high mtn valley so basically once the cold air settles into the valley it cant escape. Or some BS like that

I need to buy some land there, it's getting to damn hot down here in the valley! My wife might not agree, but it's got to be better movin' to the hills than moving north of here. Sheep have no appeal and wind 24/7 s***s!

Spider · 02-13-2006, 02:45 PM

Quote:

Originally Posted by TailgateNut

I need to buy some land there, it's getting to damn hot down here in the valley! My wife might not agree, but it's got to be better movin' to the hills than moving north of here. Sheep have no appeal and wind 24/7 s***s!

Hey , .......... watch what you say about our wom...... err sheep

broncocalijohn · 02-14-2006, 01:24 AM

the folks in the new england states would like to respond to this thread but they are under 27 inches of snow form yesterday and all lines are cut.

02-10-2006, 06:35 PM	#1
Spider Mr Diplomacy I survived Tebow Mania at the Mane Join Date: May 2001 Location: Elway was just an arm =MacGruder Posts: 84,438 Adopt-a-Bronco: Von Miller	Climate 'warmest for millennium' http://news.bbc.co.uk/1/hi/sci/tech/4698652.stm Climate 'warmest for millennium' By Paul Rincon BBC News science reporter Sunbathers during 2005 Paris heatwave, AP The last 100 years is more striking than either the Medieval Warm Period or Little Ice Age Timothy Osborn, UEA In the late 20th Century, the northern hemisphere experienced its most widespread warmth for 1,200 years, according to the journal Science. The findings support evidence pointing to unprecedented recent warming of the climate linked to greenhouse emissions. University of East Anglia researchers measured changes in fossil shells, tree rings, ice cores and other past temperature records or "proxies". They also looked at people's diaries from the last 750 years. Timothy Osborn and Keith Briffa of UEA analysed instrument measurements of temperature from 1856 onwards to establish the geographic extent of recent warming. Then they compared this data with evidence dating back as far as AD 800. The analysis confirmed periods of significant warmth in the Northern Hemisphere from AD 890 - 1170 (the so-called "Medieval Warm Period") and for much colder periods from 1580 - 1850 (the "Little Ice Age"). Natural records The UEA team showed that the present warm period is the most widespread temperature anomaly of any kind since the ninth century. "The last 100 years is more striking than either [the Medieval Warm Period or Little Ice Age]. It is a period of widespread warmth affecting nearly all the records that we analysed from the same time," co-author Timothy Osborn told the BBC. Osborn and Briffa used 14 sets of temperature records from different locations across the Northern Hemisphere. The records included long life evergreen trees growing in Scandinavia, Siberia and the Rockies which had been cored to reveal the patterns of wide and narrow tree rings over time. Wider rings related to warmer temperatures. The chemical composition of ice from cores drilled in the Greenland ice sheets revealed which years were warmer than others. Dear diary The researchers used proxy data developed from the diaries of people living in the Netherlands and Belgium during the past 750 years that revealed, for example, the years when the canals froze. "These records extend over many centuries and even thousands of years. We simply counted how many of those records indicated that, in any one year, temperatures were warmer than average for the region they came from," said Dr Osborn. Professor John Waterhouse, director of the Environmental Sciences Research Centre Anglia Ruskin University in Cambridge commented: "Although we're getting increasingly accurate measurements of present-day temperature, we've got nothing like that from the past to compare those with. "There's much uncertainty in past reconstructions. You've got to look at the reconstructed data in the past in light of the likely errors that those data have." But he added: "As we get more and more evidence in, it is looking as if the current period is the warmest for over 1,000 years." In November, Science published a paper showing atmospheric levels of the greenhouse gases carbon dioxide and methane are higher now than at any time in the past 650,000 years.

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02-10-2006, 08:19 PM	#2
L.A. BRONCOS FAN Mo' holla fo' yo' dolla! Join Date: Dec 2002 Location: In a bunker in an undisclosed location Posts: 52,694	But Spider: Everybody knows global warming doesn't really exist. It's just more of that damn librul propaganda designed to slander our God-fearin' president and those good business folk who give him money. Just like the dinosaurs are nuthin' but a hoax created by librul atheists to try to make us not believe in Jesus!

02-12-2006, 09:24 PM	#4
L.A. BRONCOS FAN Mo' holla fo' yo' dolla! Join Date: Dec 2002 Location: In a bunker in an undisclosed location Posts: 52,694

02-13-2006, 08:04 AM	#5
Hotrod Self Appointed Expert aka Dortoh Join Date: Aug 2003 Posts: 25,136 Adopt-a-Bronco: Miss I	Global warming my ass its again 20 fricking below.

02-13-2006, 08:08 AM	#7
Spider Mr Diplomacy I survived Tebow Mania at the Mane Join Date: May 2001 Location: Elway was just an arm =MacGruder Posts: 84,438 Adopt-a-Bronco: Von Miller	but then cold spells happen , what you will find odd is , they dont last as long as they used to ........

02-13-2006, 10:00 AM	#10
Garcia Bronco Hokie since 1993 Join Date: Apr 2001 Location: Denver, CO Posts: 45,991 Adopt-a-Bronco: Tom Jackson	No politican has an aggressive environment policy. they'll have to be a complete disaster for that to happen.

02-13-2006, 10:02 AM	#11
Garcia Bronco Hokie since 1993 Join Date: Apr 2001 Location: Denver, CO Posts: 45,991 Adopt-a-Bronco: Tom Jackson	"Professor John Waterhouse, director of the Environmental Sciences Research Centre Anglia Ruskin University in Cambridge commented: "Although we're getting increasingly accurate measurements of present-day temperature, we've got nothing like that from the past to compare those with." This is the sticking point for many that claim temperatures from the past to be inaccurately measured. It's a hard sell.

02-13-2006, 11:21 AM	#16
Spider Mr Diplomacy I survived Tebow Mania at the Mane Join Date: May 2001 Location: Elway was just an arm =MacGruder Posts: 84,438 Adopt-a-Bronco: Von Miller	Bikini weather , you sissy

02-14-2006, 01:24 AM	#25
broncocalijohn Famer of Rings My Dog Richard Join Date: Oct 2004 Location: Lake Forest, Orange County, Calif. Posts: 18,476 Adopt-a-Bronco: Simon Fletcher	the folks in the new england states would like to respond to this thread but they are under 27 inches of snow form yesterday and all lines are cut.