Excerpts printed below, see full story here (h/t to David Archibald)
Anne Minard for National Geographic News
May 4, 2009 A prolonged lull in solar activity has astrophysicists glued to their telescopes waiting to see what the sun will do next—and how Earth’s climate might respond.
The sun is the least active it’s been in decades and the dimmest in a hundred years. The lull is causing some scientists to recall the Little Ice Age, an unusual cold spell in Europe and North America, which lasted from about 1300 to 1850.
…
But researchers are on guard against their concerns about a new cold snap being misinterpreted.
“[Global warming] skeptics tend to leap forward,” said Mike Lockwood, a solar terrestrial physicist at the University of Southampton in the U.K.
He and other researchers are therefore engaged in what they call “preemptive denial” of a solar minimum leading to global cooling.
…
Even if the current solar lull is the beginning of a prolonged quiet, the scientists say, the star’s effects on climate will pale in contrast with the influence of human-made greenhouse gases such as carbon dioxide (CO2).
“I think you have to bear in mind that the CO2 is a good 50 to 60 percent higher than normal, whereas the decline in solar output is a few hundredths of one percent down,” Lockwood said. “I think that helps keep it in perspective.”
…
Changes in the sun’s activity can affect Earth in other ways, too.
For example, ultraviolet (UV) light from the sun is not bottoming out the same way it did during the past few visual minima.
“The visible light doesn’t vary that much, but UV varies 20 percent, [and] x-rays can vary by a factor of ten,” Hall said. “What we don’t understand so well is the impact of that differing spectral irradiance.”
Solar UV light, for example, affects mostly the upper layers of Earth’s atmosphere, where the effects are not as noticeable to humans. But some researchers suspect those effects could trickle down into the lower layers, where weather happens

bsneath, think of other planets that have swirling atmospheres (and always depicted in cool lava lamp shades). I am willing to state that the weather trends underneath that swirling globby lava lamp atmosphere stuff are weather trends that are directly influenced by said laval lamp atmosphere stuff, and not the Sun. The Sun is the constant on those planets. The planetary atmosphere is the swirly variable. We are so used to seeing towards “out there”, instead of being out there and seeing towards “in here”, that we forget to notice the TREMENDOUSLY variable and thick atmosphere we have.
Lets pretend there are aliens that are more advanced then we are and they have been studying the Earth and Sun. I know, its a stretch about being more advanced (or is it). If I were a betting woman I can just see aliens logging data on the Sun and our Earth that when studied by their [whatever they see and study with], they would laugh till they explode to hear our folks talking about how the Sun influences our weather trends. Man. Did we really smoke that much weed when we were young? I didn’t, but those of us in Wallowa County drove out regularly to Idaho for Coors.
Leif Svalgaard (14:17:00) “[…] and why did you lament that there are no decent scientists participating?”
The preceding is misrepresentation.
–
Leif Svalgaard (14:05:19) “Not if they are good. It is just that they are not good, meaning their ‘R’ is low [or rather their Rsquared values].”
Statisticians sometimes tear such statements to shreds.
Paul, are you going to let us in on your contextual thoughts or do you have a short in your keyboard and only fragments are getting through?
Pamela Gray (15:17:27) :
Paul, are you going to let us in on your contextual thoughts or do you have a short in your keyboard and only fragments are getting through?
Could also just be PEBSAK
Paul Vaughan (14:52:54) :
Leif Svalgaard (14:17:00) “[…] and why did you lament that there are no decent scientists participating?”
The preceding is misrepresentation.
Then explain:
http://wattsupwiththat.com/2009/04/25/examining-sorce-data-shows-the-sun-continues-its-slide-toward-somnolence/
2/052009
Paul Vaughan (13:40:34) :
And I wonder how many decent scientists choose to not participate…
[emphasis in original]
Pamela Gray (15:17:27) :
Paul, are you going to let us in on your contextual thoughts or do you have a short in your keyboard and only fragments are getting through?
Could also just be PEBSAK
Paul Vaughan (14:52:54) :
Leif Svalgaard (14:17:00) “[…] and why did you lament that there are no decent scientists participating?”
The preceding is misrepresentation.
Then explain:
http://wattsupwiththat.com/2009/04/25/examining-sorce-data-shows-the-sun-continues-its-slide-toward-somnolence/
2/05/2009
Paul Vaughan (13:40:34) :
And I wonder how many decent scientists choose to not participate…
[emphasis in original]
Paul Vaughan (14:52:54) :
Leif Svalgaard (14:05:19) “Not if they are good. It is just that they are not good, meaning their ‘R’ is low [or rather their Rsquared values].”
Statisticians sometimes tear such statements to shreds.
Post a link to one or more specific examples.
Just to explain, I’ve been in bed since Friday. I have pneumonia, bronchitis and reactive asthma so my body is filled with hot toddies and drugs from my friendly physician. I am in bed and this conversation has left me in the dust between both of you. However, Sleepless in Seattle is on, and THAT I can follow from a prone position. So me and the pink elephant in the room will slowly drift into chick flickdom and leave thinking behind.
Pamela Gray,
You almost make it sound good to be sick!
Get well soon.
Leif Svalgaard (15:45:12) & Leif Svalgaard (15:47:08) “Could also just be PEBSAK”
had to look that one up PEBSAK = problem exists between seat and keyboard
–
Pamela Gray (15:17:27) “Paul, are you going to let us in on your contextual thoughts or do you have a short in your keyboard and only fragments are getting through?”
just dropped a few notes over here:
http://wattsupwiththat.com/2009/05/06/founding-director-of-the-tyndall-centre-for-climate-change-time-to-ditch-consensus
Paul Vaughan (17:32:11) :
had to look that one up PEBSAK = problem exists between seat and keyboard
So, now you know what is wrong with your fragmentary postings…
Pamela Gray (14:35:55) : The fact that the Sun is blank of spots means nothing.
Nothing??? Nothing, Pamela?
You are throwing the baby out with the bathwater.
Agreed on the oceans. [I GET YOUR POINT].
But that you can not commit to speaking in degrees about the sun (however less of a driver he may be) is bothersome.
All-or-nothings do not work in science.
Feel better, by the way.
Chris
Norfolk, VA, USA
The Sun is the constant on those planets. The planetary atmosphere is the swirly variable. We are so used to seeing towards “out there”, instead of being out there and seeing towards “in here”, that we forget to notice the TREMENDOUSLY variable and thick atmosphere we have.
There is NO reason it can’t be both….with the “swirly highly variable” “in here” taking the significant majority FIRST PLACE.
In no way is the “sun the constant” when it too is affected by its 500,000 MPH jaunt through space…passing through arms (“spiral bands”) of the Milky Way over the eons and interstellar dust clouds and God knows what else.
Svensmark was on to something.
And YOU are on to something about the Oceans being the king.
Most logical people, when they see two or three or more good theories (or even models) will most likely opt for a blend (not necessarily equal) of all of them.
It really is tiring (and disappointing) to hear some of the world’s great scientists talking in black in white.
There are innumerable shades of gray…..
Chris
Norfolk, VA, USA
“E.M.Smith (01:04:54) : And here in the south end of the S.F. Bay Area, California,…. Today I was dampened in my back yard by a sprinkle of rain. This is about the 5th time in 5 days”
No, no, you must be mistaken. Chu said it’s over for California.
Or maybe that’s Chu Effect drizzle. 😉
When I and my brothers and I were very very young, we used to have verbal fights:
“You are an idiot”
“You are twice and idiot”
“You are three thousand times an idiot with a patent”
“You are a million million times an idiot with a cone hat and a patent.”
When we learned how to write, the wooden door of our fire wood storage basement became the recipient in writing, which stayed there for years and years until the demolition of the house and the raising of an apartment building.
Some of the conversation on this thread somehow reminded me of this.
E.M.Smith (02:00:14) :
savethesharks (20:31:51) :
“Plate tectonics”
There’s been of talk at ClimateAudit about plate tectonics and Steven Chu.
See :
http://www.climateaudit.org/?p=5880
and :
http://www.climateaudit.org/?p=5902
Also on Chu and the Hockey Stick (sounds like a 70’s tv show) :
http://www.climateaudit.org/?p=5870
“Pamela Gray (07:13:35) : If we want to win this debate, we must continue to talk about the Earth’s oceans,”
Why?
To do that would be using the same tactic the other side uses, i.e., trying to convince people of something with an argument that doesn’t embrace the whole picture. It’s ok to talk about the sun.
The earth is cooling. That is winning the debate anyway. Science sounds like “blah, blah, blah” to most people. But the earth cooling when global warming is supposed to be happening makes the average person shut off to Al Gore and any scientist on his side. PDO, AMO, el Nino, la Nina, Jet Stream, graphs in journals, peer-review, blah, blah, blah.
The earth is cooling. End of story.
anna v (21:50:06) :
This thread may remind you of that too :
http://www.climateaudit.org/?p=5880
Though Steve McIntyre keeps his snipers handy.
REPLY: Umm I think you mean “snippers” – Anthony
“REPLY: Umm I think you mean “snippers” – Anthony”
I think I also mean it smarts when you get the business end. But he does it for good reason 😉
Another Dalton (sunspot) Minimum predicted!
______________________________
7 Feb 09 – A research paper published this week in the Journal of Atmospheric and Solar-Terrestrial Physics forecasts another Dalton Minimum.
Solar variability is controlled by the internal dynamo, say authors. We base our findings on the generally accepted mechanisms of the dynamo and on recently found systematic properties of the long-term solar variability. These findings enable us to forecast solar activity.
“We find that the system is presently undergoing a transition from the recent Grand Maximum to another regime. This transition started in 2000 and it is expected to end around the maximum of cycle 24, foreseen for 2014, with a maximum sunspot number Rmax = 68 ± 17. At that time a period of lower solar activity will start. That period will be one of regular oscillations, as occurred between 1730 and 1923. The first of these oscillations may even turn out to be as strongly negative as around 1810, in which case a short Grand Minimum similar to the Dalton one might develop. This moderate to low-activity episode is expected to last for at least one Gleissberg cycle (60 – 100 years).”
http://www.iceagenow.com/Another_Dalton_Minimum_predicted!.htm
Leif Svalgaard (14:05:19) :
Yet here we have the AGW researchers one year to the next claiming strong correlations only to go back to the drawing board. In my original native field of Psychology lots of research appeared backed by strong Rsquares but a lot of it turned out to be bunkum.
With regard to solar grand minima & historic cool spells on Earth, are the apparent correlations strong enough to claim some evidence of a causal link? Or is this evidence more of an anecdotal trend?
You know, you deserve some kind of prize for wading through all the barycentric nonsense that erupts time to time. You’re to be commended for your patience & indulgence … but if you haven’t already it’s probably time Leif Svalgaard wrote his definitive FAQ on barycenters & other solar bunkum (bunka?).
As a layperson I don’t have access to the lit sources, so when I stumble upon older research like Shindell’s UV study I don’t see the subsequent followups that would show his reconstructed UV source data was later invalidated.
Making matters worse, when a passing comment from a scientist crops up about the shrinking stratosphere & 3/10th degrC cooler stratosphere, I have to wonder if there’s really consensus on UV data. Scientists make claims and counterclaims all the time.
But the science reporting in the media is even worse than my own personal muddlings. Science reporting ranges from either shallow and brief or extremely arcane and deep, with little in the middle.
There is no cure for human nature. People are largely addicted to believing for any number of reasons – for aversion to threat or need for certainty (social or otherwise). A favorite William James quote is “A great many people think they are thinking when they are merely rearranging their prejudices.” We are such products of our experiences!
Even a movie like “What the do we know?” falls short on a fuller insight while promoting some grooviness that has little to do with science & more to do with a faddish new age tent evangelism. Lots of bright, curious & educated friends were all abuzz about it. I watched it & got quite annoyed.
Al Gore’s movie is riven with blatant contradictions, controversial data & plain old falsehoods .. the “coincidence theorist” side of me thinks, yes, but it has made for such splendid marketing for his Cap & Trade arbitrage firm!
To lift popular and political culture out of the mire of competitive pablum will require a new style of intervention. The media thrives on contrived dialectics and spoon feed it to a willing audience 24 hours a day. Maybe people will start to burn out on the glut of garbage being thrown at them, I don’t know. A maturing population might be more responsive to such efforts. I often wish I knew whether we have hit rock bottom yet — just when I think we have something new comes up to remind me that we have a little further to go…. 🙂
Mike Lorrey (13:20:04) :
The two hemispheres seem to have their own behavior patterns. Indeed if you look at the cycle 23 curve, there are two peaks in the maximum, I’ll bet if you went back and sorted out which hemisphere each spot was involved in, you’d see one of those peaks is for one hemisphere, and the other is for the other hemisphere. This lack of being in sync between the hemispheres may contribute to why the sun can’t get organized enough to get cycle 24 going to any significance. Can anybody else comment on this?
The early part of SS23 was dominated by northern hemisphere spots, the latter part by southern. The peaks were indeed one of each.The correlation between the positions of the gas giant planets and sunspot distribution is something I’ve been looking at recently.
http://s630.photobucket.com/albums/uu21/….re-sunspots.gif
http://s630.photobucket.com/albums/uu21/….ent=ssb-ssa.gif
Just to briefly caption this second graph:
Top left is the hemispheric asymmetry in the distribution of sunspot area 1874-2009
Top right is the amplitude of solar deviation from the solar system centre of mass (barycentre) in the vertical z-axis smoothed over the hale cycle (two solar cycles or around 22 years)
Bottom right is total sunspot area smoothed over the hale cycle
Let’s try those URL’s again:
http://s630.photobucket.com/albums/uu21/stroller-2009/?action=view¤t=barycentre-sunspots.gif
http://s630.photobucket.com/albums/uu21/stroller-2009/?action=view¤t=ssb-ssa.gif
Flanagan
Above you tell us that 2008 showed warming and in another post…
“BTW, the solar activity has been going down since the 50ies. During this time, temperatures have been going up.”
Finally I understand, you are in a different solar system than the one we live in. Now your comments begin to make sense.
Leif Svalgaard (18:33:14) :
Paul Vaughan (18:01:27) :
“Every complex systems has random fluctuations.”
Do you have any objection to modifying this to include “chaotic fluctuations”
And some complex systems have fluctuations which are neither random nor chaotic but can appear so until the causative elements and their interactions are understood.
“The early part of SS23 was dominated by northern hemisphere spots, the latter part by southern. The peaks were indeed one of each.”
Thanks, good info. Intrigued by the graphs, perhaps they could be presented here at WUWT someday–photobucket seems to be a bit interface-challenged.