Forum

 
  Back to OzPolitic.com   Welcome, Guest. Please Login or Register
  Forum Home Album HelpSearch Recent Rules LoginRegister  
 

Pages: 1 2 3 
Send Topic Print
Climate "Skepticism" (Read 5574 times)
muso
Gold Member
*****
Offline



Posts: 13151
Gladstone, Queensland
Gender: male
Climate "Skepticism"
Apr 15th, 2010 at 9:18am
 
This is a well articulated explanation of the problems we have to face with so-called climate skeptics:



Quote:
So the usual pattern that you hear about, at least if you live in this country, is that scientists in general and the IPCC in particular have overstated the problem, they're a bunch of Al Gore weirdos that won't be happy until the whole American economy gets shut down! The other side of it is that the opposite prediction is actually the true one, and that the scientific consensus and the IPCC understate the true problem, not just because scientists are always conservative but also because of this asymmetry of scientific challenge.

So how do you test that? I'm going to give you three quick approaches. One is Seth Borenstein, one of the reporters who is still working today who knows something about science and climate...when was the last month that global temperatures were below average? Anyone remember? A global long-term average. The answer is February 1994 by three ten-thousandths of one degree, it was really close but it was below average. That's 192 consecutive months. Those of you who know anything about flipping coins, will it be hotter or colder?.. know that basically what you have is a binomial random variable, and if you're really good at doing the math you'll know that to get heads 192 times in a row you have a probability with (if I've typed that correctly) 58 zeros before you get to the first one.

Now imagine! You've just flipped a coin that's come up heads 192 times in a row and you're being accused of having a coin that's loaded to come up tails. That's really pretty spectacular. By the way, if you don't think that three ten-thousandths of one degree is enough, the last time when temperature was one one-hundredth of a degree Celsius below average, below the long-term average on a global scale was, guess what, a quarter of a century ago right now; 300 consecutive months. To do that you need about 90 zeros. The probability is less than...if you have 100 zeros does that make it a googolplex? It's a bigger number than I know what to call it, but 90 zeros in a row. That's the probability that the globe is really getting colder instead of hotter. That's the real probability. Straightforward.


William Freudenburg, Professor of Environmental and Society University of California Santa Barbara California USA

(from The Science Show (ABC)
Back to top
 

...
1523 people like this. The remaining 7,134,765,234 do not 
 
IP Logged
 
Soren
Gold Member
*****
Offline



Posts: 25654
Gender: male
Re: Climate "Skepticism"
Reply #1 - Apr 15th, 2010 at 10:23am
 
Very good.
But I think you will find that the measurement data and the way it was sliced and diced are also under scrutiny, not to mention the assumptions built into the models that then work with the pre-processed data coming up with the same trend no matter what you put into them and so forth. Many, me included, think that the coin mentioned in your post IS loaded.

I recall talk about the exclusion of some really cold weatherstation is siberia, urban heat island have been discovered and so on. 'Hide the decline' is a memorable phrase that leaps to mind.
But it could be all just a conspiracy, best ignore it or ridicule it as unimportant.

Climate change stopped being a primarily scientific argument a very long time ago. Pretending otherwise is going to lead to further erosion of AGW's credibility. No scientific argument will make people forget the Al Goresque crap and nonsense and the unseemply, arrogant  haste with which all the bien pensants climed onto the bandwagon - Nobel Prize, Oscar, greatest moral challenge, denialsists are like holocaust deniers and all the rest of the breathtaking stupidity that characterised the right-on crowd until very recently. You will have to flip your coin an awful lot to balance out or live down all that.






Back to top
 
 
IP Logged
 
muso
Gold Member
*****
Offline



Posts: 13151
Gladstone, Queensland
Gender: male
Re: Climate "Skepticism"
Reply #2 - Apr 15th, 2010 at 10:53am
 
Soren wrote on Apr 15th, 2010 at 10:23am:
Very good.
But I think you will find that the measurement data and the way it was sliced and diced are also under scrutiny, not to mention the assumptions built into the models that then work with the pre-processed data coming up with the same trend no matter what you put into them and so forth. Many, me included, think that the coin mentioned in your post IS loaded.

I recall talk about the exclusion of some really cold weatherstation is siberia, urban heat island have been discovered and so on. 'Hide the decline' is a memorable phrase that leaps to mind.
But it could be all just a conspiracy, best ignore it or ridicule it as unimportant.

Climate change stopped being a primarily scientific argument a very long time ago. Pretending otherwise is going to lead to further erosion of AGW's credibility. No scientific argument will make people forget the Al Goresque crap and nonsense and the unseemply, arrogant  haste with which all the bien pensants climed onto the bandwagon - Nobel Prize, Oscar, greatest moral challenge, denialsists are like holocaust deniers and all the rest of the breathtaking stupidity that characterised the right-on crowd until very recently. You will have to flip your coin an awful lot to balance out or live down all that.




That Urban Heat Island effect has been discovered by climate dissenters is an urban legend. It has always been corrected for, and subsequent studies show that even taking the worst examples made absolutely no difference to the final results. Let me dig that out if you don't believe me.  

I've dealt with the so-called CRU hack previously. "Hiding the decline" referred to some tree-ring data that wasn't even primary climate data, and even the original researchers advised that the data was suspect - so don't use it.  

The climate models don't come into this argument.
Back to top
« Last Edit: Apr 15th, 2010 at 11:44am by muso »  

...
1523 people like this. The remaining 7,134,765,234 do not 
 
IP Logged
 
mozzaok
Gold Member
*****
Offline


OzPolitic

Posts: 6741
Melbourne
Gender: male
Re: Climate "Skepticism"
Reply #3 - Apr 15th, 2010 at 11:05am
 
Now you see why I have such a lack of respect for denialists.

Soren quotes the, "hide the decline" remark, as if he has no knowledge of what that remark pertained to, as if that comment was in fact the modus operandii of the world's climate scientists.

Now as discussed in the technology thread, denialist wrap themselves so tightly in their beliefs that nothing can set them free, not even the truth, and for Soren, and other denialists, it is their absolute belief that the world's climate scientists are fraudulently, and deliberately attempting to hide the decline, as they call it, by falsifying data, and providing untrue findings.

This is their BELIEF, it is not a fact, their is no evidence that scientists are doing this at all, but that matters not to them, for they Believe, 'despite' the absence of facts to support that belief.

So for people not familiar what the "hide the decline" comment meant, here is a good explanation from the Real Climate site.

Quote:
. Phil Jones in discussing the presentation of temperature reconstructions stated that “I’ve just completed Mike’s Nature trick of adding in the real temps to each series for the last 20 years (ie from 1981 onwards) and from 1961 for Keith’s to hide the decline.” The paper in question is the Mann, Bradley and Hughes (1998) Nature paper on the original multiproxy temperature reconstruction, and the ‘trick’ is just to plot the instrumental records along with reconstruction so that the context of the recent warming is clear. Scientists often use the term “trick” to refer to a “a good way to deal with a problem”, rather than something that is “secret”, and so there is nothing problematic in this at all. As for the ‘decline’, it is well known that Keith Briffa’s maximum latewood tree ring density proxy diverges from the temperature records after 1960 (this is more commonly known as the “divergence problem”–see e.g. the recent discussion in this paper) and has been discussed in the literature since Briffa et al in Nature in 1998 (Nature, 391, 678-682). Those authors have always recommend not using the post 1960 part of their reconstruction, and so while ‘hiding’ is probably a poor choice of words (since it is ‘hidden’ in plain sight), not using the data in the plot is completely appropriate, as is further research to understand why this happens.


Soren already knew this, it has been explained numerous times before when this particular line is used to try and deceive people.

Now we must consider whether he refuses to deal in any facts that do not suit his beliefs, or whether he does not care if he uses deceitful reasons to support his belief.

The statistical probability that muso posted is profoundly significant, but once more we have a denialist claiming that all the scientific data on temperatures is fraudulently compiled to deceive us, because that is what he believes, not what anybody knows.
Why does nobody know that?
Because there is no evidence that would give them sufficient reason to accept that as true.

See the common thread in Denialism is Belief, without facts, which is something we are familiar with, and the types of claims that people working from that position come up with.
I simply say that the issue of AGW is far too important to be allowed to be derailed by Belief based propaganda campaigns, we have so much better information than that we can use.
Back to top
 

OOPS!!! My Karma, ran over your Dogma!
 
IP Logged
 
Soren
Gold Member
*****
Offline



Posts: 25654
Gender: male
Re: Climate "Skepticism"
Reply #4 - Apr 15th, 2010 at 11:24am
 
muso wrote on Apr 15th, 2010 at 10:53am:
The climate models don't come into this argument.



por qué, Señor Fawlty?
Back to top
 
 
IP Logged
 
muso
Gold Member
*****
Offline



Posts: 13151
Gladstone, Queensland
Gender: male
Re: Climate "Skepticism"
Reply #5 - Apr 15th, 2010 at 11:43am
 
Soren wrote on Apr 15th, 2010 at 11:24am:
muso wrote on Apr 15th, 2010 at 10:53am:
The climate models don't come into this argument.



por qué, Señor Fawlty?



Because he was specifically talking about historical temperatures -  not predicted future temperatures.
Back to top
 

...
1523 people like this. The remaining 7,134,765,234 do not 
 
IP Logged
 
Grendel
Gold Member
*****
Offline


OzPolitic

Posts: 28080
Gender: male
Re: Climate "Skepticism"
Reply #6 - Apr 15th, 2010 at 12:31pm
 
Wasting your time Soren...  they fail to see the mote in their own eyes.
Back to top
 
 
IP Logged
 
muso
Gold Member
*****
Offline



Posts: 13151
Gladstone, Queensland
Gender: male
Re: Climate "Skepticism"
Reply #7 - Apr 15th, 2010 at 3:23pm
 
Grendel wrote on Apr 15th, 2010 at 12:31pm:
Wasting your time Soren...  they fail to see the mote in their own eyes.



Remind me how Climate Models have anything to do with historical measurements of global average temperatures?
Back to top
 

...
1523 people like this. The remaining 7,134,765,234 do not 
 
IP Logged
 
mozzaok
Gold Member
*****
Offline


OzPolitic

Posts: 6741
Melbourne
Gender: male
Re: Climate "Skepticism"
Reply #8 - Apr 15th, 2010 at 3:56pm
 
I think we need a mote in eye, and a foot in mouth specialist to examine these posts.
Back to top
 

OOPS!!! My Karma, ran over your Dogma!
 
IP Logged
 
Soren
Gold Member
*****
Offline



Posts: 25654
Gender: male
Re: Climate "Skepticism"
Reply #9 - Apr 15th, 2010 at 4:20pm
 
muso wrote on Apr 15th, 2010 at 11:43am:
Soren wrote on Apr 15th, 2010 at 11:24am:
muso wrote on Apr 15th, 2010 at 10:53am:
The climate models don't come into this argument.



por qué, Señor Fawlty?



Because he was specifically talking about historical temperatures -  not predicted future temperatures.



How do you separate out the two when the whole alarm is about future predictions based on models showing that the past is not going to be a 'business as ususal' continuation of the past?

On hide the decline - that's a catchphrase to show what the recent report on East anglia was pleased to term 'informal processes'.

"Rather we found a small group of dedicated if
slightly disorganised researchers who were ill-prepared for being the focus of
public attention. As with many small research groups their internal procedures
were rather informal."

I don't want Rudd and Wong and the rest foist something on me because of slapdash research. Afetr all, remember, we are talking about miniscule temperature changes.

Or this:
2. We cannot help remarking that it is very surprising that research in an area that
depends so heavily on statistical methods has not been carried out in close
collaboration with professional statisticians. Indeed there would be mutual
benefit if there were closer collaboration and interaction between CRU and a
much wider scientific group outside the relatively small international circle of
temperature specialists.

4. A host of important unresolved questions also arises from the application of
Freedom of Information legislation in an academic context. We agree with the
CRU view that the authority for releasing unpublished raw data to third parties
should stay with those who collected it.

I thought the entire point of scientific experinments was to make make them repeatable on the basis of the data they were first conducted.  If they want to hang on to their data because of the time and money they have spent on collecting them, well, then let East Anglia Uni impose a carbon tax.
You can't have public policy be based on private, unreproduced, unverified data, just because a bunch of nice but disorganised blokes say 'trust us'.


That Oxbugh report is pathetic. See for yourself:
http://www.uea.ac.uk/mac/comm/media/press/CRUstatements/Report+of+the+Science+Assessment+Panel




Back to top
 
 
IP Logged
 
mozzaok
Gold Member
*****
Offline


OzPolitic

Posts: 6741
Melbourne
Gender: male
Re: Climate "Skepticism"
Reply #10 - Apr 15th, 2010 at 5:03pm
 
Some of the criticisms against the small group of scientists at east anglia is extremely valid Soren, and changes have been implemented to address those faults, but the simple, unavoidable fact remains, that their findings remain valid.
Their findings have been checked, and found to be accurate, it was their process of sharing information which was criticised, and rightly so.

It was why we had the village idiot discussion the other day, they felt so assailed by the sea of village idiots which make up the denialist world, that they reacted by becoming secretive and mistrusting, which although eminently understandable, when you are subjected to ceaseless professional, and personal harassment of the worst kind, it still does not make it right, and they have already changed all their protocols to now freely share all information.

Your first point, is that you do not want politicians making policy based on slapdash research.

That is a perfectly reasonable position to take, all would agree with that, however, you have no grounds for calling the research slapdash, it is about as far from slapdash as you could ever get.
It is based on a growing understanding, with the conclusion becoming more strongly supported by scientific analysis every year for decades now.
The core science remains unchallenged by any scientific analysis, it is only challenged by those carrying belief based opinions, and that is a no-contest.

The denialists after all these years have found one indian mucked up his figures on a himalyan glacier, and put in 2035, instead of 2350, by mistake.
So out of all the thousands of studies done by tens of thousands of scientists around the world, that all agree, and support the consensus of scientific assessment about AGW, how many have denialists proven to be wrong?
Have they ever proven anything to do with any of the fundamental core scientific analyses and conclusions from which the consensus arose, to be wrong?

It is science, if another scientist thinks something is wrong, he designs a study, collects data, and takes observations, then presents his evidence.
Your Denialist "scientists" create blog sites and merely yell, "It's wrong", and that as we have already been over so often, is not science.

You sometimes see individual studies that throw up anomalies that appear to contradict the consensus view, but when these are tested by other scientists, they are found to fail the scrutiny of their peers due to poor design or implementation leading to erroneous conclusions.

Now if AGW was the scam you say it is, then scientists could do the same to the consensus scientists work, review it, and point out it's scientific flaws, and we both know they have tried so hard to do that, but they have failed, miserably.
The consensus opinion is holding up to all scientific scrutiny, and as long as it continues to do so, it will deservedly remain the consensus view.

It it ever loses that, then you can start telling me how you knew it all along, in the meantime, try and become a skeptic rather than a denier, it is much easier to respect skeptics.
Back to top
 

OOPS!!! My Karma, ran over your Dogma!
 
IP Logged
 
Paella
Senior Member
****
Offline


OzPolitic

Posts: 290
Re: Climate "Skepticism"
Reply #11 - Apr 15th, 2010 at 5:08pm
 
Soren wrote on Apr 15th, 2010 at 4:20pm:
I thought the entire point of scientific experinments was to make make them repeatable on the basis of the data they were first conducted.  If they want to hang on to their data because of the time and money they have spent on collecting them, well, then let East Anglia Uni impose a carbon tax.
You can't have public policy be based on private, unreproduced, unverified data, just because a bunch of nice but disorganised blokes say 'trust us'.

I think the sentiment soren has expressed above is well justified. To be fair to the researchers in question, they were withholding data because they did not want to hand it over to people who they knew wanted it for no other reason than to try and discredit it. They also didn't want the denial movement to freeload on the back of their efforts.

I can sympathise with the researchers, but basically, I say tough titties. If you don't like the fact that your data can and will be used for this purpose by people who put no effort in to collecting it, don't become a climate scientist. In fact, don't become a scientist at all. No, it's not fair, but this very unfairness underlies the strength of the scientific method.
Back to top
 
 
IP Logged
 
muso
Gold Member
*****
Offline



Posts: 13151
Gladstone, Queensland
Gender: male
Re: Climate "Skepticism"
Reply #12 - Apr 15th, 2010 at 5:36pm
 
You're missing the point. It was an intellectual property issue anyway, The Met office's Hadley Centre is totally separate from the CRU, and the data belonged to them.

Not only that, but like most Meteorology Centres, they charged for that kind of data. It would have been unethical to release the data.
Back to top
 

...
1523 people like this. The remaining 7,134,765,234 do not 
 
IP Logged
 
muso
Gold Member
*****
Offline



Posts: 13151
Gladstone, Queensland
Gender: male
Re: Climate "Skepticism"
Reply #13 - Apr 15th, 2010 at 6:13pm
 
Soren wrote on Apr 15th, 2010 at 4:20pm:
How do you separate out the two when the whole alarm is about future predictions based on models showing that the past is not going to be a 'business as ususal' continuation of the past?


The original post was about a single subject - that of historical temperature trends. It makes a very convincing point too.

Now because you can't fault the logic, you're broadening the issue to include the East Anglia CRU who are vaguely connected with one set of historical data. However nothing in the email hack related to the Hadcrut data sets, which are the least cited datasets anyway because of the poor coverage of Polar regions. Correct me if I'm wrong - I've read most of the FOI file's content but I might have missed something. .

Quote:

On hide the decline - that's a catchphrase to show what the recent report on East anglia was pleased to term 'informal processes'.


I was part of a research team once. Internally, they can be very informal.  Some of the things my group said about  other researchers was not exactly repeatable, but it's human nature. Although the final papers were impeccable, we used to refer to some organic compounds with long nomenclature as "Archie" and "Polly" in our private communications. To an outsider, the exchanges must have sounded a bit strange.

Researchers are very competitive. These emails were intended to be private dialog and were never intended to be polite enough for general consumption.

How would you like it if some of your private  email was aired in public and dissected in detail?
Back to top
 

...
1523 people like this. The remaining 7,134,765,234 do not 
 
IP Logged
 
mozzaok
Gold Member
*****
Offline


OzPolitic

Posts: 6741
Melbourne
Gender: male
Re: Climate "Skepticism"
Reply #14 - Apr 15th, 2010 at 7:45pm
 
Not only their professional work dissected muso, but also these ppor guys have denialist fanatics traumatising them with death threats and violence, because the deniers just "know" they are right, so it follows as logical to them, that these scientists must therefore be crooks, and deserving of the vile treatment they have received.
That is denialist thinking.
Back to top
 

OOPS!!! My Karma, ran over your Dogma!
 
IP Logged
 
Pages: 1 2 3 
Send Topic Print