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CO2 climate sensitivity 'overestimated'
BBC News ^
| 25 November 2011
| Jennifer Carpenter
Posted on 11/25/2011 9:03:11 PM PST by Pharmboy
Global temperatures could be less sensitive to changing atmospheric carbon dioxide (CO2) levels than previously thought, a study suggests.
The researchers said people should still expect to see "drastic changes" in climate worldwide, but that the risk was a little less imminent.
The results are published in Science.
Previous climate models have tended to used meteorological measurements from the past 150 years to estimate the climate's sensitivity to rising CO2.
From these models, scientists find it difficult to narrow their projections down to a single figure with any certainty, and instead project a range of temperatures that they expect, given a doubling of atmospheric CO2 from pre-industrial levels.
The new analysis, which incorporates palaeoclimate data into existing models, attempts to project future temperatures with a little more certainty.
Lead author Andreas Schmittner from Oregon State University, US, explained that by looking at surface temperatures during the most recent ice age - 21,000 years ago - when humans were having no impact on global temperatures, he, and his colleagues show that this period was not as cold as previous estimates suggest.
(Excerpt) Read more at bbc.co.uk ...
TOPICS: Culture/Society; Extended News
KEYWORDS: catastrophism; climatechange; co2; globalwarming; globalwarminghoax; thecause
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They have begun to walk it back...
1
posted on
11/25/2011 9:03:13 PM PST
by
Pharmboy
To: Pharmboy; SolitaryMan; golux; SteamShovel; Bockscar; Thunder90; rdl6989; marvlus; Fractal Trader; ..
2
posted on
11/25/2011 9:05:24 PM PST
by
steelyourfaith
(If it's "green" ... it's crap !!!)
To: neverdem; thefactor; SunkenCiv; ClearCase_guy; aculeus; blam; ZULU
Is it warm in here, or is it me?
3
posted on
11/25/2011 9:05:42 PM PST
by
Pharmboy
(Democrats lie because they must...)
To: Pharmboy; Ernest_at_the_Beach; Rurudyne; steelyourfaith; Tolerance Sucks Rocks; xcamel; 75thOVI; ...
4
posted on
11/25/2011 9:05:52 PM PST
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: steelyourfaith
5
posted on
11/25/2011 9:07:01 PM PST
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: Pharmboy
6
posted on
11/25/2011 9:09:02 PM PST
by
Army Air Corps
(Four fried chickens and a coke)
To: SunkenCiv; steelyourfaith
SC: he almost had the ping there before I posted. :)
7
posted on
11/25/2011 9:09:32 PM PST
by
Pharmboy
(Democrats lie because they must...)
To: steelyourfaith
What is really amazing is that it is reported by the British Babble Corp.
8
posted on
11/25/2011 9:13:23 PM PST
by
AlexW
To: Pharmboy
...meanwhile Algore, manbearpig, loads up his wagon and heads for “new” frontiers to swindle....
9
posted on
11/25/2011 9:13:54 PM PST
by
Doogle
((USAF.68-73..8th TFW Ubon Thailand..never store a threat you should have eliminated))
To: Pharmboy
do I really have to say it???
10
posted on
11/25/2011 9:14:34 PM PST
by
Chode
(American Hedonist - *DTOM* -ww- NO Pity for the LAZY)
To: AlexW
...and published in Science. I'm sure Mann from Penn State will send off an email to the editors immediately. [snicker]
11
posted on
11/25/2011 9:16:28 PM PST
by
Pharmboy
(Democrats lie because they must...)
To: Pharmboy
How did this get through peer review?
12
posted on
11/25/2011 9:16:42 PM PST
by
Rocky
(REPEAL IT!)
To: Pharmboy
To: Pharmboy
Someone’s getting wobbly knees. ‘Bout damn time.
14
posted on
11/25/2011 9:22:54 PM PST
by
Windflier
(To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
To: Pharmboy
Ah oh, somebody’s email has been hacked,
15
posted on
11/25/2011 9:30:34 PM PST
by
central_va
( I won't be reconstructed and I do not give a damn.)
To: Pharmboy
surface temperatures during the most recent ice age - 21,000 years ago - when humans were having no impact on global temperatures, he, and his colleagues show that this period was not as cold as previous estimates suggest. Yes, ice was warmer back then.
16
posted on
11/25/2011 9:42:59 PM PST
by
VeniVidiVici
("Si, se gimme!")
To: Pharmboy
How soon will we be treated to the fear of the “coming ice age” that we can’t do anything about but throw $$ at it?
To: Pharmboy
people should still expect to see "drastic changes" in climate worldwide, but that the risk was a little less imminentYeah, it's going to be in 80 gazillion years rather than the prior estimate of "The Day After Tomorrow," one of the most unintentionally hilarious movies ever made.
18
posted on
11/25/2011 10:19:12 PM PST
by
hsalaw
To: chris_bdba
How soon will we be treated to the fear of the coming ice age that we cant do anything about but throw $$ at it?Been there, done that in the 1970s.
19
posted on
11/25/2011 10:20:53 PM PST
by
hsalaw
To: Pharmboy
Global temperatures could be less sensitive to changing atmospheric carbon dioxide (CO2) levels than previously thought, a study suggests.Gee, ya THINK!!????
20
posted on
11/25/2011 10:34:49 PM PST
by
DustyMoment
(Congress - Another name for white collar criminals!!)
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