Sunspots Reach 1000-Year Peak
rlp writes "Researchers at the Institute for Astronomy in Zurich are reporting that solar sunspot activity is at a 1000-year peak. Records of sunspots have been kept since 1610. The period between 1645 and 1715 (known as the Maunder Minimum) was a period of very few sunspots. Researchers extended the record by measuring isotopes of beryllium (created by cosmic rays) in Greenland ice cores. Based on both observations and ice core records, we are now at a sunspot peak exceeding solar activity for any time in the past thousand years."
So are temperatures. *ducks from thrown chair*
I wonder if I use bold in my signature, people will notice my posts.
So what happened around 1000 A.D.? How did people then manage a similar peak?
Virtual Betting on Facebook for non-geeks.
before the trolls come in - know that this doesn't debunk global warming. What most of the 'global warming' controversy is centers on "are humans contributing?"
the answer is absolutely undeniably: Yes
it's never been stated that we're the only cause.
If you cannot keep politics out of your moderation remove yourself from the Mod Lottery.. NOW!
I've heard that missiles can be guided to a target through GPS. Could the noise generated from massive sunspot activity cause the missile to drift enough to hit a completely different target even though it THINKS it's on target?
In other words, could the noise corrupt the GPS signal and offset the readings (but still be understood by the missile), or would it mess-up the system up completely to become totally incomprehensible?
Point of order, sirs...
How can we know we're at the peak if we're also at the highest level we've been? Won't we have to wait until we dip for a while?
No doubt this story will stir up our global warming debate again. Rather than continue the same litany of posts, can we focus on informative or interesting posts about how sunspots could affect various parts of our climate (polar temperature, magnetism, radiation, ozone holes, etc.)? Do they have an effect? How large? Is it significant? Is this accurate? That would be something new and helpful.
/.ers want to read is another string of the same people posting the same links to previous posts and pasting the same arguments, counterarguments, sources, and denouncements of those sources as in the multiple threads we've had.
I think the last thing most
Just a thought.
Funtime Candy Wow! - my plan for eventually conquering Japan.
The Sun has a DIRECT influence on global climate, yet the author says "indirect influence", and this is not disputed by ANY scientist.
The relationships between where Beryllium comes from, the solar wind strength, number of sunspots and cosmic rays is not explained in a coherent manner with simple statements that could be made.
The number of sunspots has been near constant (on average) over the past 20 years, yet they are at the highest level in over 1000 years for the last 60 years "yet the average temperature of the earth has continued to increase". This shows the author doesn't understand lag times between applying extra energy input to the atmospheric system versus the time required for the large mass of the Earth's ecosystem to respond by warming land, sea and air to the point where average temperature changes can be measured.
These sort of incomplete descriptions give the average reader a bad view of what is really going on. It gives journalism a bad name.
And if you read your own link, you'd also see: "Since sunspots are dark it might be expected that more sunspots lead to less solar radiation. However, the surrounding areas are brighter and the overall effect is that more sunspots means a brighter sun. The variation is very small (of the order of 0.1%)."
And that informs us about our planet's sensitivity to GHG forcing how?
It's funny that climate change skeptics used to try to pick apart the global surface temperature record, which involves data collected from hundreds of locations for over 100 years, but are so quick to grab onto a 6 year regional trend on Mars as proof of something.
Can you show me the climatic feedback that minimizes the impact of the well-understood thermal forcing of CO2 (and methane, etc.) and the well-understood increase in atmospheric CO2 (and methane, etc.)?
Then we can talk.
Simple Unexpected Concrete Credible Emotional Stories
The Sun God is in puberty and eat too many chocolate bunnies and eggs at Easter?
Excuse me, but please get off my Pennisetum Clandestinum, eh!
Sun spots are *cool* parts of the sun. If the sun is at a 1,000 year peak of sunspot activity, that means that it is at a 1,000 year *low* for temperature, as far as sunspots are concerned.
So if there is global warming, then this argues *against* the sun as an explanation.
That is a common misconception. Direct satellite measurements of irradiance have shown that solar irradiance increases as the number of sunspots increase.
According to current theory, sunspots occur in pairs as magnetic disturbances in the convective plasma come close to the surface of the Sun. Magnetic field lines emerge from one sunspot and re enter at the other spot. Also, there are more sunspots during periods of increased magnetic activity. At that time more highly charged particles are emitted from the solar surface, and the Sun emits more UV and visible radiation.
It is most likely that the sunspots do not cause more radiation, but they instead are caused by the same events that cause the Sun to emit more radiation.
Regardless of what happens, it is clear that increased sun spot activity increases the radiation and therefore the heat that is transferred to the Earth from the Sun.
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-- All that is necessary for the triumph of evil is that good men do nothing. -- Edmund Burke
We had the middle ages. Europe was warmer, you could grow wine in regions you can't now. The middle East was a trading empire, Vikings were on the march, some Christians were planning the crusades. All things considered, you would probably be a poor peasant, half starving, and about to drop dead from plague or some other ailment at the ripe age of 30.
Beryllium in ice cores: http://www.agu.org/pubs/crossref/1997/97JC01265.sh tml
"The most dramatic is a 10Be peak ?40,000 years ago, similar to that found in the Vostok ice core, thus permitting a very precise correlation between climate records from Arctic and Antarctic ice cores."
There is a lot of scientific data and the summary article (as poor as it was) did not even start to touch on the breadth of what is currently known from the analyses.
This is Slashdot.
People don't read links or articles here.
You must be too good for this here place. Why don't you run down to some fancy website where you'd feel more welcome.
Damn kids. Come here and start reading links and articles. No respect for tradition. No honor. All he had to do was post a pithy comment and get his +5 insightful, but noooo... he had to read the article.
Why can't you just be like the rest of us, and argue past each other without doing any research while stubbornly holding your own ground, peppering your posts with links you know the other side won't read? Geez...
Just how are they dating these samples? Is there an assumption that each layer is a year? Are they assuming there has been no meltbacks removing several years records?
I am not a paleo-climatologist, but I think we can safely assume that the scientists who are analyzing ice cores are taking these sorts of things into account. Much like a sysadmin reading a log file or processing tcpdump output looking for evidence of hacking, you can safely assume that yeah, the experts did think of that.
When you have expertise in a particular field you tend to become better at perceiving patterns in the data sets you have. The open source 'many eyes' rule of thumb comes into play here, too.
Thus I think we can assume the PhDs in this field would notice an anomaly indicating that their data set may be corrupted, just like I could analyze a suspicious HTTP traffic log file, profile the activity from a specific IP address, correlate it with other sources of information, and make reasonable hypotheses as to what actually was going on, whether the activity was a bot or a human, etc. Or even whether the activity was a human trying to disguise itself as a bot (or vice-versa). And I don't even have a PhD, I just have a decade or so of experience.
it's a blue bright blue Saturday hey hey
The article says:
> Over the past 20 years, however, the number of sunspots has remained roughly constant
This is a weird statement. In last 20 years we've had two solar cycles and the number of sunspots has varied dramatically over the period as it usually does. You could interpret this statement as saying that relative to the cyclic average the number has remained constant - but that's certainly not how it reads, and 20 years is a bit of a short time over which to make such a judgement.
Doesn't it make you feel good to know that our freedoms are protected by politicans, lawyers and journalists.
Nevertheless, IMO the global warming alarmism being used to push a neo-communist agenda stinks. I've looked at the evidence, and humans as *the major* contributor just doesn't add up. I'm not convinced by "all the real scientists say so" either. There is too much censoring of dissenters for that to be convincing.
In many cases, the cures exacerbate real problems. For instance, demand for ethanol is causing more rain forest clear cutting to grow sugar cane. Paving large areas causes local warming (urban heat island effect) far in excess of the worst case estimates of global warming, and loses even more ability to recycle CO2 in the air. Eating beef/pork for breakfast, lunch, and dinner has causes a 10 fold increase in methane, much more that the increase in CO2. All the driving causes stress, and the fatty, sugary fast food combined with the lack of exercise has made most of us fat, driving up health care costs.
My point is that I would like to see a positive agenda. Keep and expand greenspaces and forests. I'm not a stickler for "everything wild" like Gore - parks are fine. Walk, ride bikes, use mass transit. Rent a car for vacations. Use a ZipCar for trips to the store to pick up heavy items. Eat meat only on feast days (e.g. Sunday - modify for your religion), like we used to, and observe a Sabbath (on a day appropriate for your religion). Getting rid of my car saves $300 to $800 dollars a month (depending on how nice a used car I would have gotten to replace it). I have a ready excuse why I can't jump up and drive all over the county on a moments notice. Stop the rushing around. Relax, enjoy your food instead of wolfing it down in a hurry. Eat slowly. Eat less. Fast on a regular basis - if only so you know what it feels like to be hungry. Eat only when you are hungry, not when you are bored, or pressured by friends.
Use our own oil (offshore drilling, Alaska, and/or plant it instead of corn for the cows you aren't eating as much of) instead of buying it from our enemies and carting it over the ocean. Save the oil for the truckers so your fresh veggies won't cost an arm and a leg. The trees will slowly take care of the CO2 if we don't cut them down and pave them over. Whatever you do, don't give control to the government to "fix" things. They will only make it worse. Sufficiently large corporations are indistinguishable from government in their capacity to foul things up.
Take these suggestions slowly so the affected industries have time to adjust.
On the other hand, that show is full of shit.
Using a biased source to purport another source to be biased is pretty hypocritical.
I am defenseless. Use your button. Mod me down with all of your hatred.
Good for you, personally I don't like to label myself, refer to my sig for more info.
"And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd."
But you like to label other people by defining anything you dislike as a "cage", and then throwing others into it arbitrarily based on a catchy song lyric.
Being libertarian is not a label, it is a general approach to analyisis and a certain core set of priorities, one deeper than most song lyrics or bumper stickers. I don't think you can ever apply the word "label" to a system of beliefs wide enough for members within that space to disagree on things (as Libertarians do).
I, too, am a Libertarian - as is most of slashdot really.
"There is more worth loving than we have strength to love." - Brian Jay Stanley
That I find that many GW skeptics do the former. That is to say they raise legitimate questions of the empirical data. They question the methods used, such as using computer models to "prove" things (a model doesn't prove anything), the data gathered, the understanding of the system and so on. They bring up extremely valid points. However the response always seems to be the same: They are shouted down. They are called stupid, or industry shills. Their arguments are dismissed out of hand. The existing data/models are presented as being right with little in the way of justification, and so on.
That's the problem. Many people act like they are all about science, and are open to questioning, but then when it happens, the reaction is vicious. Sorry, but you don't get to say "Any questioning of our position proves you are an idiot and thus we don't have to respond." I don't care if you don't like the questions posed, if they are legit then they deserve a legit answer.
From what I've seen, the skeptics do their best to present very well reasoned criticisms and questions of the accepted knowledge. The defenders are the ones that act unscientific and just shout the other side down.
The Intelligent Design thing is often brought up, as an attempt to shut down skeptics. They say "This is just like Intelligent Design and thus shouldn't be listened to!" Only it isn't. Intelligent Design makes a positive claim (that god created creatures as they are now) but the real problem is it makes an untestable one. Might be they are right, but you'll never prove it. Since according to them god is outside of nature that makes god untestable. Well if it's not testable, it's not science, pure and simple. However GW skeptics are just questioning a theory. Also, they aren't saying "No, your theory is wrong because god says so," they say "Your theory is wrong because of these reasons." That's science right there. Doesn't mean that the skeptics are right, but it does mean they are doing science as it is meant to be done.
Real science isn't about making a claim and then trying to shout down anyone who says you are wrong. Real science is about trying to prove yourself wrong. It is about trying to think up every way you can that your theory might be wrong and then testing those. Any alternative you can think of. Only when all those tests fail to prove it wrong, do you believe it is true. It's not a matter of trying to run one test and saying "There, I've proven it true!" and getting mad when people don't agree, it is trying to run as many tests as you can and then saying "There, I've tried every way I can to prove it false, and I just can't." Then if someone has a way you didn't think of, you try that too. You just keep on trying too, you keep working on the theory. No theory should ever be considered proven beyond the need for reinvestigation. All the time new areas of science open up that reveal that a long accepted theory was, in fact, an oversimplification. Doesn't mean it was a bad theory or didn't do a good job describing the facts, just that not everything was understood and now we have a better one.
So to me, it seems like it is the GW proponents putting their fingers in their ears. They don't want to hear any arguments and so any time someone makes one, they pretend like that person didn't and just shout them down.
"Sunspots have been monitored on the Sun since 1610, shortly after the invention of the telescope."
Which were soon follwed by cries of "GAAAHHH!!! I'm blind!!!"
boycott slashdot February 10th - 17th check out: altSlashdot.org
None of these environmental doomsday events were predicted for obvious reasons but at least they go to show that environmental doomsday events are survivable if you are fit enough. As for future prospects for prediction, so far we haven't done well have we? We were already in the several thousand years into the ongoing Holocene extinction event before we even figured out it was happening but at least we have managed to figure out since then that this time around we are a major contributing factor to the extinctions.
Only to idiots, are orders laws.
-- Henning von Tresckow