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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/28/2007 2:02:37 PM |
But being that Arctic ice is quickly diminishing, while Antarctic ice is stable, or even increasing, and being that air temp warming is relatively marginal (I think the latest revisions are less than 1* F in the past 100 yrs) seems indicative that the melting is due to sea temps.
Cite that, please. According to the British Antarctic Survey, the average trend for Antarctica is about +0.2C per decade...thats about +0.36F per decade...over a minimum period of 35 years. http://www.antarctica.ac.uk/met/gjma/
The next question is, of course....why do you think the ocean is warming? Please remember that the "the ocean is cooling" paper published a few years ago turned out to be mistaken due to sensor problems.
[
]Which would seem to be largely solar variability influenced (an anectdotal example is to consider that satellite shots generally show the seas to be practically black, which indicates a heat sink,
You know what they say about anecdotal evidence...And depending on the photo you are looking at, black may not mean what you think it means.
and being that the mass of sea water (in atomic weight, for example)
Really? Leaving out the heavy isotopes... H20: 1 + 1 + 16 = 18 N2: 14 + 14 = 28 O2: 16 + 16 = 32
Water does have a higher heat capacity than either N2 or O2, but that's due to the H-O bonds, not atomic weight.
is humongously more than that of the atmosphere,
About 4 times, by mass.
there is a lot of heat-retention capability down there. Admittedly amateur's speculation, but I think worth considering.
Yes, the oceans are the worlds biggest heat sink (or source, depending...). This is why coastal areas tend to have fewer temperature extremes. Now, as the ocean temperatures are trending up....
The thing is, your amateur's speculation HAS been considered by the professionals...some time ago. Remember, you used it in some of your quote mining. They concluded that, while changes in solar emissions has had a greater effect than we thought, the amount that we are responsible for is still quite significant and has been increasing.
After the 1998 peak, didn't temps drop, and I believe the latest temp chart show a nice downward graph trend.
Does this look like a downward trend? http://en.wikipedia.org/wiki/Image:Instrumental_Temperature_Record.png
After '98, temperatures dropped from that abnormal temperature spike...then they started going up again. You can't get an honest evaluation of long term trends if you don't remove the short term "noise". Otherwise, it's like measuring the tide based on the tallest wave. Of course, if you aren't interested in the honest evaluation of the data, please keep jabbering about "cooling since 98".
Also, I would think that the retentive heat effect would be like the hottest part of the day being around 3 to 5 pm in the summer, rather than high noon, or that the lowest winter temps n. hemisphere are around the middle of Jan, rather than Dec 21, the solstice.
That's exactly why you smooth the data if you want to look at long term trends. What you do is create a derivative set where the value for any particular year are averaged (statistical mean) with the values for the following and preceding (whatever value you want) years. This process, called a low pass filter, reduces the effects of the short term fluctuation and gives an idea of the long term trends.
This paper is an opinion. Correct or incorrect. My point, as written in my first posts, is to highlight the comparisons between a .25% increase in solar output since the Maunder era, compared to a .02% increase in CO2 emissions. I am simply utilizing the data of Dr. Lean.
The paper, which YOU quoted, draws conclusions directly opposed to your claims....so now it's just opinion. But what does Dr. Lean (and company) think of the matter? From the abstract of the original paper... http://www.agu.org/pubs/crossref/1995/95GL03093.shtml
The correlation of reconstructed solar irradiance and Northern Hemisphere (NH) surface temperature is 0.86 in the pre-industrial period from 1610 to 1800, implying a predominant solar influence. Extending this correlation to the present suggests that solar forcing may have contributed about half of the observed 0.55?°C surface warming since 1860 and one third of the warming since 1970.
Put simply, while solar changes were responsible for nearly all the warming in pre-industrial times, the proportion it is responsible for has decreased significantly.
BTW: CO2 levels have gone up by 2.4% over the past 5 years, so I don't know where you got the 0.02%...did you just copy straight across from "concentration in atmosphere" to "change in concentration"? Do you understand how big a mistake that is? http://www.esrl.noaa.gov/gmd/ccgg/trends/
But keep in mind the original assertion: IF sc24 is weak, it will be revealing. If the solar output lowers, and temps start again to go up in the ensuing years, you are vindicated.
The forecasts for the next solar cycle are that it's going to be anything BUT weak. Over the past 5 years or so, solar output has been decreasing and the temperatures have been trending up. This directly contradicts your assertion.
If temps drop, the Question I pose is time well spent.
The question you posed was answered more than a decade ago, and it was time well spent.
beltaine said (12-24-07): "There is no historical precedent for what is happening today. " ==== my comment: oh yeah,there were precedents. The 1930s have been newly-determined to have been the hottest decade over the past 100 years. And the hottest era was that around 1000AD.
No real evidence to back your claims, I notice...but I remember the 1930s data correction, and how it got spun by the media. They kept leaving out the relevant details, such as it just being a question of where the "high water mark" is, not general trends...as well as how the two years were "neck and neck" for first place.....or how all that happened was the years in 1st and 2nd place just got transposed....or how that the whole incident only affected the continental US...about 2% of the globe....and had no effect on anything other than keepers of top 10 lists.
I expect your claim about 1000AD to be of a similar quality.
But the present anamolies might well be explained thus: First, you have to go to the bottom of this 2002 NASA site: http://science.nasa.gov/headlines/y2002/18jan_solarback.htm
and click the block "sunspot counts recorded during the past 400 years" Now, you have to add on the latest solar max of about 160 in 2002 to this, because it has (for what reasons, I have no idea) not been included in the graph.
Gasp...a slightly outdated graph of sunspot activity. You truly have mastered the art of climatology and are worthy of every Nobel in the upcoming prizes for your complete refutation of everything that professionals have been saying for decades. In fact, we should now call it the "mpaul7172 prize".
BTW: the reason that it doesn't include any data past 2002 is that it's from their news archive. Didn't you read it? | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/29/2007 7:57:44 AM | Beltaine, I'll attempt to minimize pasting, and causing clutter, and will attempt to respond in a narrative, using keywords and phrases of yours.
1) decreasing Arctic ice, stable Antarctic ice: pretty universally accepted. No use making cites. Also, the air temps you use (I will semi-stipulate as correct) substantiates my whole point. These increased air temps are not affecting Antarctica's ice. They are not that significant. And, of course, these temps (assuming correct) could be in the "total paradigm" or local.
2) the satellite shots: this is substantiated by common knowledge that the deeper you get in the seas, the darker it gets. While there is some reflection, the predominant apparent effect is solar retention
3) sea water (atomic) mass vs atmosphere: the whole aspect of "moles" is to allow minute elemental weights to be utilized in "our world" using scales and the like. The atomic mass of the seas is obviously mega-weightier than the atmosphere. Also, atmospheric pressures pale in comparison to pressures 10,000 feet deep in the seas, for example
4) Beltaine says: "The thing is, your amateur's speculation HAS been considered by the professionals...some time ago. Remember, you used it in some of your quote mining. They concluded that, while changes in solar emissions has had a greater effect than we thought, the amount that we are responsible for is still quite significant and has been increasing."
my comment: that is the whole question posed by this piece. IF sc24 is weak, that conclusion by these "experts" will either be vindicated or eradicated.
5) Beltaine says: "After '98, temperatures dropped from that abnormal temperature spike...then they started going up again. You can't get an honest evaluation of long term trends if you don't remove the short term "noise". "
my comment: looking at the sites immediately below, the temp drops look like more than just local "noise". Especially, at the first listed site, note the deep "noise" drop of the past year, the steep slope. There is definitely a possible trend here. We are 9 years removed from the 1998 spike. Eight consistent years of bad measurements is VERY unlikely. CO2 measurements have been rising quickly (esp due to, ironically, those signatories of Kyoto). http://www.junkscience.com/MSU_Temps/HadCRUG.html http://www.junkscience.com/MSU_Temps/RSSglobe.html
Beltaine, I will make this a two-part response, as I don't want to lose, accidentally, the accumulation. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/29/2007 8:24:29 AM | To continue: 6) Dr Judith Lean: her findings / assertions are not restricted to the article you keep referring to. Example, see: http://www.americanscientist.org/AssetDetail/assetid/39261 The AGU article was apparently one person's opinion utilizing the data of Dr Lean. My point is obviously to note the .4% solar variance from the c. 1900's vs the c. 1600's. Misuse of that info is irrelevant.
7) Beltaine says: "CO2 levels have gone up by 2.4% over the past 5 years, so I don't know where you got the 0.02%...did you just copy straight across from "concentration in atmosphere" to "change in concentration"? Do you understand how big a mistake that is?"
comment: obviously, I am talking of CO2 increases as a percentage of total atmosphere (.02% = 200 ppm) while you are talking about increases in comparison to CO2 date "a" versus CO2 date "b".
8) Beltaine says: "The forecasts for the next solar cycle are that it's going to be anything BUT weak"
my comment: NOAA, for example, has modified its forecast. There is some contention that it will be a cycle anywheres from weak to strong. As of last year, the estimates by the likes of NOAA were that it would be strong to very strong.
9) Beltaine says: " Over the past 5 years or so, solar output has been decreasing and the temperatures have been trending up."
my comment: that is apparently incorrect, according to the info I have cited (I think note 5 in the previous post)
10) Beltaine says: "The question you posed was answered more than a decade ago, and it was time well spent"
my comment: right. And the Titanic could not sink, and the 90's were the hottest decade (that has been modified to the 30's), and everybody at NOAA agrees on the severity of the next solar cycle. We shall see, IF....
11) Beltaine says: "No real evidence to back your claims, I notice...but I remember the 1930s data correction, and how it got spun by the media. They kept leaving out the relevant details, such as it just being a question of where the "high water mark" is, not general trends...as well as how the two years were "neck and neck" for first place.....or how all that happened was the years in 1st and 2nd place just got transposed....or how that the whole incident only affected the continental US...about 2% of the globe....and had no effect on anything other than keepers of top 10 lists."
my comment: right. But the USA and Europe were (aguably) the two most fastidious record-keepers. For some reason I would not put too much stock in the records from the Sudan. Again, refer to my ?note 5? I'll double check that after I post this, but my assumption there is that that is worldwide.
12) Beltaine says: "You truly have mastered the art of climatology and are worthy of every Nobel in the upcoming prizes for your complete refutation of everything that professionals have been saying for decades"
my comment: is your comment telling? | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/29/2007 8:24:56 AM | I'm no scientist so purhaps someone can explain to me how increased CO2 by a few PPM could have such an effect. Especially when extra CO2 promotes growth..
For me, I think the CO2 excuse is the only avenue the powers that be could come up with to make Mr Joe public think he can do anything about global warming.
The most obvious answer as to whats causing the atmosphere to warm is quite simple......Heat absorbing concrete, tarmac and to some extent roof tops.
This is why all major towns and cities are 'heat islands' Always a couple of degrees warmer then the surrounding countryside. This explains, in miniture, whats happening throughout the planet.
So how could any modern society reverse the last 200 years of building and get rid of said concrete and millions of sq miles of tarmac? Aint never gonna happen, no one could afford it. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/29/2007 9:55:02 AM | In response to BrightSideOfLife
There is a conspiracy forum going on somewhere, too, that you could join.
No, this isn't something the government cooked up; scientists have known that certain gases in the atmosphere absorb and radiate certain wavelengths of light since the 1800s. I remember doing a presentation about a runaway greenhouse effect on Mars while in university (ca mid 1980s). Back then the environmentalists around us were claiming that earth was going to hell in a handbasket and the government and public didn't believe it. Now there is so much evidence that the world is finally starting to take notice.
The ppm measure of CO2 isn't as important as its effect on the incoming radiation. Besides water vapour, it is the atmospheric gas that absorbs the most solar radiation. It is also true that cities are heat traps because they absorb light and remit heat.
Think of CO2 as a really toxic poison. If you have a poison that is toxic enough, it will kill a person even in very small doses.
It's been a while since I studied the actual mechanism of greenhouse gases and how they work, but it is real and has been denied by governments for many years. Believe me, our economy would be much better off if this "inconvenience" didn't exist. There is no reason for them to lie on this one. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/29/2007 3:41:20 PM |
Oh! and CO2 is not a toxin, it's an asphyxiant and only in large quantities and I know this because I use it a lot in my profession.....so there
I know that, you silly. I was just making a comparison, meaning that you wouldn't discount the fact that a miniscule amount of a potent poison could render someone ill or kill them. In the same way a seemingly insignificant proportion of CO2 in the atmosphere can still have a major effect on temperature because of the nature of its molecules.
About populated concrete areas: yes, we agree that they raise local temperatures but having elevated CO2 levels on top of having those heat islands certainly doesn't make things better.
Who knows why the CO2 rose (if it did) during the last ice age, but that doesn't negate the fact that CO2 absorbs radiant energy and keeps the heat in the atmosphere.
I forgot to mention in my last message that you might be right about governments jumping on the bandwagon and asking people to reduce CO2 emissions, because it gives people the feeling that they are helping. Being the cynic I am, I'm afraid that they (governments) might do that to create the appearance that they actually care about the problem, not because they necessarily believe that individuals can make a difference.
Do the believers of global warming due to CO2 increases think that we have a hope in hell of turning around the situation? I've heard reports that there is a very small window of opportunity to keep the problem at bay, but not to actually decrease the current average global temperature to previous levels...I know that the Al Gore movie was an exaggeration of the situation, but part of his presentation stuck with me: his chart showing the increased CO2 in the atmosphere. According to him the current levels of CO2 in our atmosphere are significantly (I think he said exponentially) higher than any other level during the last 650,000 years, and that each ice age was preceded by a period of warming. In other words, the global warming won't be the only thing we'll have to worry about. I came away from that movie feeling that it is already too late. I'm curious what others think about that.
At least, that's what I believe...Like the OP stated, we don't really know, and it's not necessarily an argument that I want to win.
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/29/2007 5:25:33 PM | NovaScotiaLass said: "and it's (GW, temp rises) not necessarily an argument that I want to win" ==== my comment: I have the same dilemma. On one hand, living in southern Louisiana, not far from areas only a couple of feet above sea level, cold=good, in the sense of prospective GlobalSeaLevels being tempered. On the other hand, long-term, WHEN the next ice age is upon us (next decade? 3,000 years??), it will make us long for the good ole GW days. So, to some degree, I sort of dread that each 100 year prospective/possible temp drop could possibly portend the next ice age. Not very likely in our lifetimes, tho, granted (and relieved). The only silver lining on an oncoming ice age would be to shut up knotheads like Gore. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/30/2007 5:35:23 AM |
The only silver lining on an oncoming ice age would be to shut up knotheads like Gore.
Hey, you shouldn't shoot the messenger...If an ice age does come, it would prove that Gore isn't a "knothead" | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/30/2007 8:20:42 AM | NovaScotiaLass said: "Hey, you shouldn't shoot the messenger...If an ice age does come, it would prove that Gore isn't a "knothead" ". ======= my comment: thanks for your concern about the Inventor of the Internet, but I must gently and sweetly make some corrections: a) no, I wouldn't shoot Gore b) he is the wrong messenger c) he has the wrong message d) he is a knothead e) he is a blatant CO2-bloating hypocrite
Other than than, Big Al might be an interesting golf partner. For one round. IF I played golf. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/30/2007 2:41:59 PM | Of course, the bottom line is that the sun will do what it will do and we cannot do anything about it. A peripherally pertinent piece at the "american thinker" today: "letter to the editor Can you imagine what a death-knell it would have been to the so-called Global Warming chicken-littles if it had been Dan Quayle, instead of the somnabulent Al Gore, lecturing us with an insipid Power Point presentation all these years?
The media would have had a field day pricking holes in his "theories." And deriding him personally along the way.
Maybe it's not too late for Dan to hop on board.
Jxxx Txxxxx Wxxxxxxxxx, NY" | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/30/2007 8:25:04 PM |
Beltaine, I'll attempt to minimize pasting, and causing clutter, and will attempt to respond in a narrative, using keywords and phrases of yours.
It seems as if you've neglected to include context in multiple quotations. Frankly, I'm not suprised. That way, any inconvenient questions and/or observations will be far less obvious.
1) decreasing Arctic ice, stable Antarctic ice: pretty universally accepted. No use making cites.
Because you're not going to read them anyway? That's not a problem, since I include them to back my position, not to educate you. I'm not responsible for your education, and that you rarely back your claims is quite telling of your debate standards.
Also, the air temps you use (I will semi-stipulate as correct) substantiates my whole point.
Indeed, though the point I was making was how wildly off your numbers are. Your claim of less than +1F in the past 100 years doesn't match the measurements of more than +1F (averaged over ALL of Antarctica) measured in the past 35 years.
These increased air temps are not affecting Antarctica's ice. They are not that significant. And, of course, these temps (assuming correct) could be in the "total paradigm" or local.
It's warming around the edges, but actually getting cooler in the middle. This warming has a large effect on ice coverage since warmer air holds more moisture, which increases potential precipitation.
2) the satellite shots: this is substantiated by common knowledge that the deeper you get in the seas, the darker it gets. While there is some reflection, the predominant apparent effect is solar retention
Your claim was that the black areas of the satellite photos indicated a heat sink. This is incorrect, since black on a processed photo (such as an IR image) means whatever the legend tells you it means. On a visible light photo, all black tells you is that the area isn't emitting in the -visible- spectrum. It's still emitting infrared, and it's the reduction in outgoing infrared that's the issue.
3) sea water (atomic) mass vs atmosphere: the whole aspect of "moles" is to allow minute elemental weights to be utilized in "our world" using scales and the like. The atomic mass of the seas is obviously mega-weightier than the atmosphere. Also, atmospheric pressures pale in comparison to pressures 10,000 feet deep in the seas, for example
Sorry, no. You'll have to go back and take high school science, and pay attention to the difference between density and mass. Water (H2O: 18 grams per mole) is less massive than Nitrogen (N2: 28 grams per mole) or Oxygen (O2: 32 grams per mole). Multiplying all three by the same constant number doesn't change their relative values.
Atomic mass has little to do with density, and is only one of the factors that affects heat capacity. Any specified volume of liquid water will weigh more than the same volume of either N2 or O2 gas, but that's due to the much higher density of liquid water (or any other liquid, for that matter).
And I'd like you to explain the relevance of high pressures in the deep ocean to this discussion.
Now, had you said that the ocean has more mass than the atmosphere, you would be correct (by about 2.2 orders of magnitude)...or had you said that the ocean has a much larger heat capacity than the atmosphere (about 4 times dry air, so about 2.8 orders of magnitude), you would still be correct. But you just had to add the "atomic" in there. You think it makes you sound educated, don't you. That little "atomic" just exploded in your face.
4) Beltaine says: "The thing is, your amateur's speculation HAS been considered by the professionals...some time ago. Remember, you used it in some of your quote mining. They concluded that, while changes in solar emissions has had a greater effect than we thought, the amount that we are responsible for is still quite significant and has been increasing."
my comment: that is the whole question posed by this piece. IF sc24 is weak, that conclusion by these "experts" will either be vindicated or eradicated.
Only in so far as solar cycle prediction. As measured trends go, changes in solar radiation are responsible for less of the change observed recently than it was a few decades ago. This indicates that some other factor is increasing. That was in the paper you indirectly cited.
By the way, do you have any theory as to why the predictions of the next solar cycle will be wrong? Can you point to any evidence to back your position? Or does your entire position boil down to "Well, the experts COULD be wrong...". In that, you are technically correct...though the odds are seriously against it.
5) Beltaine says: "After '98, temperatures dropped from that abnormal temperature spike...then they started going up again. You can't get an honest evaluation of long term trends if you don't remove the short term "noise". "
my comment: looking at the sites immediately below, the temp drops look like more than just local "noise". Especially, at the first listed site, note the deep "noise" drop of the past year, the steep slope. There is definitely a possible trend here. We are 9 years removed from the 1998 spike.
You are STILL trying to pull the old "cooling since '98" argument? The height reached by the '98 spike is a very, very bad place to derive trends from. Since the heat spike was a one year event, it needs to be removed to get an accurate picture of the long term trends. The math to do so is very simple (though the explanation of why the math works is college level); each years average temperature is averaged with a number of years around it.
For example; in order to look at the trends for the years 1980 to 2007, you need to make a second data set. The value for 1980 is the average of the years 1978 to 1982, '81 is the average of '79 to '83, and so on (on this new trend line, the values for '06 and '07 are questionable, due to a lack of measurements for '08 and '09). This is done explicitly to REMOVE the short term noise...in this case, that would include both the large upward spike in '98 AND the fast drop afterwards. The trend did level out a bit...for a while...then started climbing again.
http://en.wikipedia.org/wiki/Image:Instrumental_Temperature_Record.png
Eight consistent years of bad measurements is VERY unlikely. CO2 measurements have been rising quickly (esp due to, ironically, those signatories of Kyoto). http://www.junkscience.com/MSU_Temps/HadCRUG.html http://www.junkscience.com/MSU_Temps/RSSglobe.html
I notice you didn't answer the criticisms I had the last time you presented these links. Just how credible do you think that graph is when it comes with its own WARNING LABEL? I quote...
Note: These script-generated graphs are auto-scaled by default. Users must be aware that scales vary such that the Y1-values virtually fill the plot area and that this might (probably will) distort the impression gained from casual perusal.
Last time you brought them up, you stated that you didn't look too deeply into it. Your exact words were "they seem accurate to me at first glance", and the warning label explicitly warns you against that. The data is accurate, but the information is (probably) distorted. It says so right on the package.
6) Dr Judith Lean: her findings / assertions are not restricted to the article you keep referring to. Example, see: http://www.americanscientist.org/AssetDetail/assetid/39261 The AGU article was apparently one person's opinion utilizing the data of Dr Lean.
http://www.agu.org/pubs/crossref/1995/95GL03093.shtml The "one person" in this paper is Dr Lean herself. It was a direct link to a copy of the paper where she and her colleagues published the findings. The horses mouth, as it were.
You quoted the assistant managing editor of a science magazine (ie: not a peer reviewed journal)....and he wasn't actually talking about Dr. Leans work. He was talking about Solanki & Krivova's paper. http://www.agu.org/pubs/crossref/2003/2002JA009753.shtml
In the paper, S&K came to the following conclusion....
This comparison shows without requiring any recourse to modeling that since roughly 1970 the solar influence on climate (through the channels considered here) cannot have been dominant. In particular, the Sun cannot have contributed more than 30% to the steep temperature increase that has taken place since then, irrespective of which of the three considered channels is the dominant one determining Sun-climate interactions: tropospheric heating caused by changes in total solar irradiance, stratospheric chemistry influenced by changes in the solar UV spectrum, or cloud coverage affected by the cosmic ray flux.
Cannot have contributed more than 30% of the warming since the '70s....about the same as Dr. Lean & CO's result of 1/3....
How does this support your position again? It seems to me as if the scientists agree, even if managing editors of science magazines have different takes on it....
My point is obviously to note the .4% solar variance from the c. 1900's vs the c. 1600's. Misuse of that info is irrelevant.
Misuse of that information is very relevant, and you are misusing it (likely by proxy).
7) Beltaine says: "CO2 levels have gone up by 2.4% over the past 5 years, so I don't know where you got the 0.02%...did you just copy straight across from "concentration in atmosphere" to "change in concentration"? Do you understand how big a mistake that is?"
comment: obviously, I am talking of CO2 increases as a percentage of total atmosphere (.02% = 200 ppm) while you are talking about increases in comparison to CO2 date "a" versus CO2 date "b".
In the context of the effects of CO2 on the greenhouse effect, you need to show the number as a relative change. The fact that it only makes a small proportion of the atmosphere is irrelevant. You're including Oxygen and Nitrogen as greenhouse gases...they aren't. It means the number you are using is deceptive, though whether by accident or design I cannot tell. I'm betting on the former.
8) Beltaine says: "The forecasts for the next solar cycle are that it's going to be anything BUT weak"
my comment: NOAA, for example, has modified its forecast. There is some contention that it will be a cycle anywheres from weak to strong. As of last year, the estimates by the likes of NOAA were that it would be strong to very strong.
The National Oceanic and Atmospheric Administration has very little to do with forecasting solar cycles. The coming years weather will have little influence from a large upcoming solar cycle, since it's only just starting to go up again. You seem to be confusing solar and terrestrial forecasts, as well as confusing the relative timescales.
9) Beltaine says: " Over the past 5 years or so, solar output has been decreasing and the temperatures have been trending up."
my comment: that is apparently incorrect, according to the info I have cited (I think note 5 in the previous post)
You didn't cite any information, you cited poorly formatted data that came with a warning label. To make it information, you would need to do some analysis of the data. Using the same technique you are advocating, I could argue for a coming ice age based on the values from '98 to 2000...which is exactly why you don't use that technique to determine long term trends.
10) Beltaine says: "The question you posed was answered more than a decade ago, and it was time well spent"
my comment: right. And the Titanic could not sink, and the 90's were the hottest decade (that has been modified to the 30's), and everybody at NOAA agrees on the severity of the next solar cycle. We shall see, IF....
Again, the NOAA doesn't do any kind of solar forecasts.
Last decade is still the hottest _globally_ on record, though it looks like it's going to be knocked back to second place.
11) Beltaine says: "No real evidence to back your claims, I notice...but I remember the 1930s data correction, and how it got spun by the media. They kept leaving out the relevant details, such as it just being a question of where the "high water mark" is, not general trends...as well as how the two years were "neck and neck" for first place.....or how all that happened was the years in 1st and 2nd place just got transposed....or how that the whole incident only affected the continental US...about 2% of the globe....and had no effect on anything other than keepers of top 10 lists."
my comment: right. But the USA and Europe were (aguably) the two most fastidious record-keepers.
cough...China...cough
For some reason I would not put too much stock in the records from the Sudan. Again, refer to my ?note 5? I'll double check that after I post this, but my assumption there is that that is worldwide.
That's one of the details that keeps getting omitted, yes. And since I somehow doubt that you'll get around to double checking, I'll do it for you.
Here's an article on the whole incident. http://www.geotimes.org/aug07/article.html?id=WebExtra081607_2.html
Due to an error in calculations of mean U.S. temperatures, 1934, not 1998 as previously reported, is the hottest year on record in the United States. NASA scientists contend that the error has little effect on overall U.S. temperature trends and no effect on global mean temperatures, with 2005 still the hottest year worldwide by far, followed by 1998. The data corrections have added new fuel to the climate change debate, however — and could spell more public relations woes for NASA.
Hmm..Calculations of mean U.S. temperatures...hottest year on record _in_the_United_States_...little effect on overall U.S. temperature trends....no effect on global mean temperatures....
Though, I admit that I was mistaken about it being neck and neck for first place...should be neck and neck for second.
Feel free to prove me wrong...but remember that I do require solid evidence. Bring on the peer review.
12) Beltaine says: "You truly have mastered the art of climatology and are worthy of every Nobel in the upcoming prizes for your complete refutation of everything that professionals have been saying for decades"
my comment: is your comment telling?
Only telling that I occasionally employ sarcasm. What is more telling is your inability to back your claims. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/30/2007 9:18:33 PM | To further address something which comes up fairly often - the tiny percentage increase in CO2...
First, and my understanding of this could be wrong in the details, though likely correct in the end conclusion:
CO2 is largely transparent to the warming rays of the sun. These rays are not heat per se. Once they pass through the atmosphere and interact with the surface, heat is generated. To THAT, CO2 is reflective. Thus, "greenhouse" effect: a greenhouse lets in the light, the light creates heat, and the glass traps the heat. CO2 is the glass.
Second, there is a benchline. Without greenhouse effects, temperatures would be much lower. A certain minimum is required in order to achieve a "desireable" balance. To pull numbers out of my ass, if the planetary temperature without greenhouse effects were expected to be -100C, but the actual temperature were 10C, with [insert one arbitrary gas here] 20% concentration, THEN...
That increase to 22% is huge. 20% was responsible for a 110 degree increase [about 210 F] you take for granted and "unwarmed". A 1/10 increase could well raise temperatures 11C! It's not likely to be a linear relationship.
Third, the percentage change is deceptive. A change from 0.01 PPM to 0.02 PPM is a doubling. It's equivalent to doubling the thickness of your fiberglass. Doesn't add much to the mass of your house, but over most of the surface, it cuts your heat loss in half. A house has many other sources of heat loss which could negate this value. The atmosphere also has other influences, but those are generally accounted for.
As I mention in point two as well, even a 2% increase in JUST CO2, is potentially extreme. The false assumption is made that existing levels cause no warming. Existing levels cause a LOT of warming, the average public is just unaware of how chilly things would be without greenhouse gases. The starting point for warming isn't, for instance, 70F, but somewhat lower. I don't have the actual figure, though it isn't likely anywhere near the -100 I mentioned. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/30/2007 11:32:50 PM | Also to be figured in (is) increased solar radiation = diminished cosmic rays = diminished clouds = more heat penetration to Earth. As far as I have found, no proof exists to substantiate Fangqun Yu's theory that cosmic rays influence cloud formation.
Global combustion places almost 7 billion tons of CO2 into the atmosphere each year, of which, on average, the Earth absorbs about half.
CO2 contained in cylinders of ice samples, indicate that the pre-industrial carbon dioxide level was 278 ppm. That level did not vary more than 7 ppm during the 800 years between 1000 and 1800 A.D.
Atmospheric CO2 levels have increased from about 315 ppm in 1958 to 378 ppm at the end of 2004.
http://www.noaanews.noaa.gov/stories2005/s2412.htm Even if a solar cycle is weak, that only means less heat will be available to be trapped by the greenhouse effect, part of the natural balance of Earth's biosphere.
http://www.gfdl.noaa.gov/~tk/climate_dynamics/climate_impact_webpage.html shows predictions of what quadrupling CO2 levels could mean to the environment.
From what I have read, the infrared component of solar radiation is about half. At the top of the atmosphere, or at ground level? Out in space, the final frontier.
Otto Bonn - a German who loves to drive on the local super highways. I am of German ancestry and I have indeed driven, driven, driven auf der Autobahn. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 3:20:41 AM |
At standard temperature and pressure, the density of carbon dioxide is around 1.98 kg/m³, about 1.5 times that of air.
This means that, in still conditions, CO2 stays close to the ground which makes sense really because plants need it in abundance to photosynthesize. With this in mind, how does the greenhouse effect work again? 
Again, I say that the CO2 argument is a misnomer. Methane has a density of 0.717 kg/m³ which makes it very boyant in the atmosphere and is 25 times more 'greenhouse' effective than CO2
Where does all this methane come from I hear you ask.....Well, it is expelled by swamps, volcanoes, refuse dumps, organisms and is in very large quantities within the Earths mantle (natural gas)
Sooooo, with 6.8billion people and 4.5billion cattle expelling methane on a daily basis I'm be more enclined to shift the blame somewhat
Afterall, lets not forget. The largest extinction event to happen on Earth 250million years ago has been attributed to the massive release of methane from the clathrates in the ocean floors.
Yeah, I know blaming global warming on people pooping just sound down right ridiculous but it's just a good an argument has our CO2 emissions and just goes to show one thing. There are so, so many factures that influence our climate and to outline just one potential and say that IS the soul factor is downright rediculous. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 5:00:28 AM | Well, if you trust Wikipedia, here's what they have (edited to be a brief post).
Below an altitude of about 100 km, the Earth's atmosphere has a more-or-less uniform composition.
CO2 is listed as 383 ppm (0.0383%), while Methane a mere 1.745 ppm (0.0001745%). | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 5:19:32 AM |
At standard temperature and pressure, the density of carbon dioxide is around 1.98 kg/m³, about 1.5 times that of air.
This means that, in still conditions, CO2 stays close to the ground which makes sense really because plants need it in abundance to photosynthesize. With this in mind, how does the greenhouse effect work again?
The CO2 is absorbing the heat from the earth, holding it temporarily, and then remitting it in various directions. This keeps the heat from escaping directly to space. Perhaps its high density is what makes it one of the most effective of the greenhouse gases. But, see your next point
Again, I say that the CO2 argument is a misnomer. Methane has a density of 0.717 kg/m³ which makes it very boyant in the atmosphere and is 25 times more 'greenhouse' effective than CO2
There are so, so many factures that influence our climate and to outline just one potential and say that IS the soul factor is downright rediculous.
I'm curious why you say methane is 25 times more effective than CO2. I've read that CO2 is the most effective greenhouse gas after water vapour. Specifically, if you remove water vapour, the contribution of greenhouse gases to the greenhouse effect is as follows: CO2, 60%; methane, 15%; ozone, 12%; CFC, 8%; nitrous oxide, 5%.
But, again, I must agree with you that the argument made to Joe Public is quite simplistic: cut down CO2 emissions. I'm guessing that this is the case for multiple reasons, two of which could be: oversimplification by the media to make the information understandable to large masses of people and, in the case of those other messengers, like good old Al, getting one message out that will make the biggest difference to the greenhouse effect.
Again in agreement with your argument on methane: Albert Einstein indicated that the best thing humans could do for the earth is to become vegetarians. The methane contribution to the environment would certainly work into that equation
Someone else wondered what the temperature of the Earth would be without greenhouse gases. I found a site that states that it would have been -18 oC, kind of like Canada, really.
Afterall, lets not forget. The largest extinction event to happen on Earth 250million years ago has been attributed to the massive release of methane from the clathrates in the ocean floors.
I'm not 100% sure, but wasn't this methane release caused by a meteorite hitting earth? We couldn't prevent that (or perhaps now we could), so it shouldn't be entered into the argument.
I still pose my question: Do the other posters here really believe that there is enough time to turn around the global warming phenomenon or will the average temperature keep increasing even with our current levels of CO2? | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 5:49:11 AM | I think you've just highlighted how both gases exist in such miniscule amounts Otto.
I would have to question if those measurements accounts for the atmosphere as a whole or do they take into account different layers within the atmosphere? Did they measure CO2 levels at different wind speeds at each cm upto 100km I wonder? There's no getting away from density and CO2 is more previlant close to the ground. It's heavier than air so it has to sink whereas CH4 is lighter than air so creates a layer in the upper atmosphere, along with many other aerosols.
Again, just more things we must take into account when trying to understand the climate. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 6:05:19 AM |
The CO2 is absorbing the heat from the earth, holding it temporarily, and then remitting it in various directions. This keeps the heat from escaping directly to space. Perhaps its high density is what makes it one of the most effective of the greenhouse gases. You're just re-enforing my concrete argument here. Solids hold heat much more effectively than gasses, 1000's of times more. If billions of tonnes of CO2 can hold X amount of heat then billions of tonnes of concrete can hold X times 1000. Effectively acting like a radiator after nightfall, warming up the atmosphere.
http://en.wikipedia.org/wiki/Methane#Methane_in_Earth.27s_atmosphere | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 6:15:36 AM | To quote myself:
The CO2 is absorbing the heat from the earth, holding it temporarily, and then remitting it in various directions. This keeps the heat from escaping directly to space. Perhaps its high density is what makes it one of the most effective of the greenhouse gases.
To quote you:
There's no getting away from density and CO2 is more previlant close to the ground. It's heavier than air so it has to sink whereas CH4 is lighter than air so creates a layer in the upper atmosphere, along with many other aerosols.
My response: Even if you are correct, that CO2 is in higher concentration closer to the Earth than higher in the atmosphere, it still supports the argument that CO2 is a highly effective greenhouse gas: The light goes through the atmosphere pretty much unabated, is absorbed on earth, remitted as heat, and held by the CO2.
Doesn't matter what the percent concentration is compared with the O2 and other non greenhouse gases, since they do not hold the heat.
Yes, the issue has many factors, but the majority of climate researchers agree that CO2 is the greenhouse gas that is contributing the most to global warming.
What would be the point of the researchers creating a misleading theory? | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 6:20:11 AM | Looks like we posted simultaneously:
Here's my response to this post:
You're just re-enforing my concrete argument here. Solids hold heat much more effectively than gasses, 1000's of times more. If billions of tonnes of CO2 can hold X amount of heat then billions of tonnes of concrete can hold X times 1000. Effectively acting like a radiator after nightfall, warming up the atmosphere.
The CO2 holds the heat temporarily, then releases it in my different directions, sometimes being picked up and held by another greenhouse gas. The whole thing acts like an insulator.
If we didn't have the greenhouse gases acting as an insulator, all of the heat being held by the solids would escape to space every night. Much like a cottage without insulation. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 7:07:29 AM | Frogo said: "Thus, "greenhouse" effect: a greenhouse lets in the light, the light creates heat, and the glass traps the heat. CO2 is the glass." ========== my comment: Frogo, amateurish me contests the whole "greenhouse" analogy as flawed, for the simple reason that the earth is AUTOMATICALLY a greenhouse, in the sense that the atmosphere cannot escape. The "glass" is gravity, which holds our atmosphere in place. Versus an actual greenhouse for growing plants: without walls and a roof, airtight (or relatively), it is useless, to wit, if it only has a roof, air will flow out.
This cannot happen on earth. Our automatic greenhouse is airtight because gravity holds the air.
This may sound simplistic, but, just like with the 100,000 CO2 cause versus effect analogy, sometimes it's necessary to go over the basics.
However, I concede the possibilities of your other arguments, as far as the ray/surface heating/containment. But I take them with a huge grain of salt. Personally, I suspect that these "expert" arguments (not you, but by the originators) are made to match the scenario. Because the .02% atmospheric increase due to CO2 is still, mass-wise, minute. And I have yet to see the big organization in this, the UN, come out publicly to explain the relative insulative properties of CO2 versus O2 and nitrogen. Publicly, up front, where this issue could be resolved. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 7:16:25 AM | Brightside seems to have answered the relative greenhouse effect of CO2 (not particular to O2 and nitrogen, but to methane, giving a good idea of the non-greenhouse effectiveness of CO2, nonetheless)....... ================================== brightside said: "Again, I say that the CO2 argument is a misnomer. Methane has a density of 0.717 kg/m³ which makes it very boyant in the atmosphere and is 25 times more 'greenhouse' effective than CO2" | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 7:32:26 AM | And, of course, the relative insulatory properties of CO2 (200ppm) have to be compared to the atmospheric insulatory properties not only of O2, nitrogen, methane, but also water vapour. PLUS, all this is relatively minute compared to the heat sink capabilities of the seas, concrete, dirt/earth?
Now, compare again, in reflection of the above: the .02% CO2 increase (200ppm) comnpared to a prospective DIRECT .4% increase in solar radiation Maunder to now, and especially considering the fact that the majority of that solar radiation increase was in the second half of the 20th century, plus the small decrease of solar radiation (or so it seems) in the last decade being followed by the downward graph trend in temperatures in the past 8 years, and the question, at least to me, remains:
MIGHT SOLAR CYCLE 24 DISPEL THE SUPPOSTION THAT GLOBAL WARMING IS ANTHROPOGENIC, THAT IS IF (REPEAT IF) SOLAR CYCLE 24 IS WEAK, BUT IF IT IS NOT, WILL SOLAR CYCLE 25, WHICH IS PRETTY MUCH UNIVERSALLY EXPECTED TO BE WEAK, BE THE ACID TEST??
Now, that is why I am checking out www.solarcycle24.com a few times per week. It is moreso NOT expected to be weak, but some DO expect it to be weak. Time will tell. And IF it is weak, we will have an acid test pertaining to AGW. | |
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| Might Solar Cycle 24 dispel man-made global warming? Posted: 12/31/2007 7:34:15 AM | But still, come day break, cities are still warmer than to surrounding countryside which means they are still radiating latent heat. This is heat that shouldn't be here but because of our buildings the climate is just a fraction of a degree warmer than is should be going into the next day. Escalate this over weeks, months and years and the result is.......gradual, overall global warming.
However, if you do believe that CO2 is the main contributor:
I still pose my question: Do the other posters here really believe that there is enough time to turn around the global warming phenomenon or will the average temperature keep increasing even with our current levels of CO2?
The only person who can answer this is you. Are you prepared to pay more taxes? Would you get rid of your car? Is your home fully insulated? Would you take public transport more? Do you recycle everything you can?
They are a lot more political questions too but that is very off topic.
On the whole I would suggest, that instead of buying friends and family nick-nacks for birthdays, christmas etc....buy them a tree to plant. | |
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