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The Heretical Freeman Dyson

dublin writes "Big-thinker Freeman Dyson has written a new essay in which he points out the need for heretics in science, and goes on to gore some sacred cows, including global climate change: 'My first heresy says that all the fuss about global warming is grossly exaggerated ... There is no doubt that parts of the world are getting warmer, but the warming is not global ... When I listen to the public debates about climate change, I am impressed by the enormous gaps in our knowledge, the sparseness of our observations and the superficiality of our theories ... All our fashionable worries and all our prevailing dogmas will probably be obsolete in fifty years. My heresies will probably also be obsolete. It is up to [the people of 2070] to find new heresies to guide our way to a more hopeful future.'"

40 of 498 comments (clear)

  1. Heretics? by SpottedKuh · · Score: 4, Insightful

    Hmm, this seems like a rather easy prediction to make: that all the arguments for, and against, the current view on global warming will be obsolete in 50 years.

    Unfortunately, the debate on global warming has been so politicized that I can indeed believe that any theories currently present will be obsolete in a small number of years. Has it occured to anyone else that the huge right-vs-left debate over global warming has actually repressed all of the scientific facts on global warming? I'd love to see original scientific research on the question on global warming, but it seems that everyone with an opinion on global warming is merely a pundit for either the right or the left.

    Perhaps, somewhat arrogantly, I consider myself an intelligent scientist (though not a climatologist). I would love to read the research on the subject of global warming, minus the political punditry, and make my own decisions on the problem.

    1. Re:Heretics? by Dunbal · · Score: 4, Insightful

      Look, this isn't rocket science. Does carbon dioxide reflect certain infrared wavelengths or does it not? It does. Is the amount of co2 in the atmosphere increasing or decreasing? It is increasing. Are human beings producing co2 or are we removing it from the atmosphere? We are producing it. There you go

            Are humans capable of producing more CO2 per decade than say, a single volcanic eruption?

            Does the amount of organisms capable of removing CO2 from the atmosphere increase as this new atmosphere provides an environment closer to the optimum for them?

            Does the increase of CO2 (which is far denser than oxygen or nitrogen) at relatively LOW altitudes (because of this density) have ANY effect on the upper atmosphere? In fact, is heat really retained at ALL by a thin surface layer of CO2?

            The "facts" are not as clear cut as you would like them to be. Of course it's easy if you only listen to what you WANT to hear.

      --
      Seven puppies were harmed during the making of this post.
    2. Re:Heretics? by AaronW · · Score: 3, Insightful

      >> Are humans capable of producing more CO2 per decade than say, a single volcanic eruption?

      Yes. Humans put out well over 100 times as much CO2 as all volcanic activity combined.

      >> Does the amount of organisms capable of removing CO2 from the atmosphere increase as this new atmosphere provides an environment closer to the optimum for them?

      It depends. There are limits to the number of organisms from other things like nutrients, hence projects to do things like dump extra iron in the ocean. Other carbon sequestration organisms like the Amazon rain forest are being lost as well. Some pollutants, like ground level ozone, actually reduce the amount of CO2 plants can take up.

      >> Does the increase of CO2 (which is far denser than oxygen or nitrogen) at relatively LOW altitudes (because of this density) have ANY effect on the upper atmosphere? In fact, is heat really retained at ALL by a thin surface layer of CO2?

      Yes. CO2 tends to get mixed fairly well into the upper atmosphere up to around 90km. See http://www.agu.org/pubs/crossref/1992/92JD01622.sh tml Note that the edge of space is considered to start at only 60km.

      >> The "facts" are not as clear cut as you would like them to be. Of course it's easy if you only listen to what you WANT to hear.

      Actually, they are fairly clear cut, and all of the arguments you have made have been discussed and covered ad nauseum. There is a lot of discussion of this and other arguments at http://www.realclimate.org/

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    3. Re:Heretics? by TheNetAvenger · · Score: 5, Insightful

      So you two will sit here and argue over whether the CO2 is mankind's fault or not, and yet both acknowledge that CO2 will increase global temperatures.

      Bottom line, if this is the end of an ice age, or mankind screwing up the earth it doesn't matter. Scientists need to find a way to MAINTAIN the 'sweet' spot that humans need for survival.

      This is no longer about who's fault it is, nor saving the earth, this is about saving a large population of people.

      1) If mankind is 'adding' to the problem, we need to stop accelerating it.
      2) If mankind has nothing to do with it, we need to find a way to artificially slow it down.

      Here are the ramifications of either scenario, the caps are melting. Yes, this is FACT, no matter how much people want to bitch about whose fault it is.

      The shelf that dropped off a couple of years ago at the South Pole was a dramatic indicator.
      The fact that Greenland is 'becoming' green again is another major problem.

      The fact that US subs at the north pole have measured the ice thickness go from 10s of meters, where they couldn't surface, to under 1 meter where they can surface should be enough evidence to scare the hell out of people.

      So after you two and people like you get worrying about who's fault all of this is, it is time to get together and work on a solution. An asteroid collision would not be manmade, but if one comes hurling at the earth, we would need to take action to deflect it. And this is the same freaking thing. PERIOD.

      All this recent bitching about whether the temperatures are going up 5 degrees or only 2 degrees DOESN'T MAKE A FREAKING DIFFERENCE, they are going up, or the caps would not be melting.

      What happens when the caps melt? Well first the ocean streams are messed up as fresh water is added in large amounts to crucial areas that salinization are needed to return heavy water back to the equator. In effect Europe and parts of North America freeze over.

      The second problem is even if the streams in the ocean somehow keep working as needed to keep mankind alive, sea levels WILL continue to RAISE. This means bye, bye Miami, most of New York City, the Netherlands, and a large portion of Asia areas and islands.

      And we are only talking a meter or two difference to affect 100s of millions of people on the coastlines everywhere.

      So go back to your bitching about who is at fault, while the rest of the scientific community tries to find solutions to save your ass.

    4. Re:Heretics? by Headw1nd · · Score: 4, Insightful

      Well, guess what? Last time I checked, climatologists don't run the planet. So that means in the end, if you want anything done, a lot of people who aren't climatologists are going to have to make decisions on whether or not to listen to those who are, and if they are convinced then they will decide what must be done about it. For some reason this seems to be a common mistake among interested in science, that somehow if they learn the truth it will come with the authority to act on it. Sorry to say, that's not the case. The best you can do is try to make a convincing argument to those in power. They'll listen only when it becomes obvious to them.

    5. Re:Heretics? by timmarhy · · Score: 2, Insightful
      what you mean like the climate change paper put out by the UN, claiming it was compiled by over 2000 leading scientists? the one which dozens of scientists have since requested their names be removed from, the one which many of those 2000 scientists are actually just slobs who proof read the paper?

      you'd be very hard pressed to fine untainted research on global climate. how about YOU go out and provide us a link if it's so easy?

      --
      If you mod me down, I will become more powerful than you can imagine....
    6. Re:Heretics? by 4iedBandit · · Score: 2, Insightful

      They are worse in terms of the existence of humans on this planet with consideration to the population affected by the changes.

      Sorry, this is a load of crap. Human beings are the most adaptable species on the whole planet. Human beings have resided in the hottest places on the planet and in some of the coldest too. If climate change is a "threat" to us, we deserve to die off.

      As for science 'fixing' the problem, this doesn't necessarily mean a plan on the scale of Dr Evil to alter the world. It could be as simple as dusting the upper atmosphere with reflect particles or even droppping a few large scale reflective panels in space that could be controlled to regulate the climate, both of which could be adjusted, changed or removed if they had negative impacts that science doesn't foresee.

      And this is exactly the kind of arrogance which will destroy the planet. We begin to think we can change the entire system just to suit us. Do you have any idea what this will actually do? Not in the short term, in the long term. The very long term. And what about the desserts that once blossomed? (and there is evidence of this) If climate change which would have brought rains back to them is stopped, what will happen then? When you stop a natural cycle, you may actually do more harm than good.

      What scares me the most is one of these crack-pot ideas will actually gain enough support to get implemented. Then afterwards we discover that we've stopped a cycle that is necessary in some fashion, and are unable to go back. Attempting to change a biosphere the size of the planet where we don't even understand half of the systems that operate on it and in it is not only arrogant, it's suicidal.

      "Global Warming" has simply become a political toy. Worse, it's turned science into pulp fiction. Express a dissenting view, even if you have evidence to back it up and you're ostracized. Everyone loves to say that a "majority" of scientists agree that humanity is the sole cause of global warming. Gee, 50.1 percent is also a majority. Science has to have dissenters. That was the point of the article. Submitting to "group think" only benefits politicians.

      Conservation is a wonderful thing, it's do-able now. The dooms-day theatrics of "global warming" have short term gains and long term set-backs. You can only cry wolf so many times before people start to ignore you completely.

      --
      "The avalanch has already started, it is too late for the pebbles to vote." -Kosh
  2. He's right. by WK2 · · Score: 5, Insightful

    He is correct. It is important that people speak against the common wisdom, otherwise we would never learn anything. That being said, 99% of the time when people claim stuff against common sense, they are talking bullshit.

    --
    Write your own Choose Your Own Adventure. http://www.freegameengines.org/gamebook-engine/
  3. Heretics, Bjørn Lomborg and flame wars by Reverse+Gear · · Score: 3, Insightful

    This was the man I first thought of when reading the /. summary (I haven't read TFA).

    I guess maybe Lomborg has done some good things, started some good things, but all in all he did nothing good for the global warming debate but make it less scientific and more political. Then again he is actually a statistician with a lot of knowledge about economics and little real knowledge about geology etc.

    My point is just that people like Lomborg tend to make something that was before something that could be debated scientifically in open forums like these something that starts a flame war almost right away as soon as it is brought up.
    I am not sure this makes the science that we really need to be done well any better, what should have been arguments about scientific evidence ends up in economic and political arguments which never really lead to any good.

  4. On heresy. by Lemmy+Caution · · Score: 4, Insightful

    "They laughed at Einstein. They laughed at the Wright Brothers. But they also laughed at Bozo the Clown." - Carl Sagan

    The question is, is Dyson being an Einstein, or a Bozo? For my money, on climate change, I'm going with the latter.

    1. Re:On heresy. by ppanon · · Score: 5, Insightful

      Well, I like Freeman Dyson's attitude and analysis better than any I've seen from the GW-skeptic camp.
      He's not trying to dispute what's going on with Climate Change, or even that we're partially responsible. Instead he's saying there may be much better ways to deal with it than the current proposed economic approaches. I'll take his input over a hundred McIntyres' worth, for as long as we can still get it, given that he's 80. I'm not convinced about his finding an upside in the possible wetting of the Sahara, but any single one of his points is better argued than all the GW-skeptic points I've yet read on the subject in slashdot.

      In the past Dyson's proven to be a lot closer to Einstein than Bozo the Clown and I think he deserves some slack on this one. For the role of genius moonlighting as clown, I think Roger Penrose has my vote for 'Emperor's New Mind', where he let his personal desires and beliefs overcome the pointers and evidence of evolutionary biology, chaos theory, and complexity theory. But I don't think Dyson's fallen off his pedestal yet, even if his balance looks shaky at times.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
  5. "There is no doubt that parts of the world... by unapersson · · Score: 4, Insightful

    are getting warmer."

    Doesn't that quote suggest he's just been confused by the term global warming and doesn't understand the basic issue at all? I'm convinced it's because of people like him that the popular term was modified to "Climate Change". It's about the energy the heat adds to the system, not the fact that it gets warm everywhere. It could well get colder in a lot of places, all it does is make things more extreme. Like pushing a swing just that little bit harder, it might go up higher but unless you move it's the back swing that will have you not fathering any children.

  6. His conclusion says it all by vlad_petric · · Score: 5, Insightful
    "The moral of this story is clear. Even a smart twenty-two-year-old is not a reliable guide to the future of science. And the twenty-two-year-old has become even less reliable now that he is eighty-two."

    Ultimately what he attacks is being stuck in an ideology, and that heresies are essential for science. He isn't claiming that his heresies are true - just that scientists are too stuck in an ideology to even give them proper attention.

    --

    The Raven

  7. Re:What bothers me about global warming... by Dunbal · · Score: 1, Insightful

    How many people here would get on an airplane if only about 90% of the principles behind aerodynamic science were understood? Or if the designers were only 85% sure it would fly?

          There's a problem with your argument here. Knowledge is always advancing. Back in the 1920's, people were willing to fly. Heck even the Wright brothers were willing to fly before they even knew if their aircraft would fly or not. Aerodynamics and aircraft design were very rudimentary in the first half of last century.

          Our increased knowledge has allowed us to design aircraft that can move larger amounts of people with greater safety, however this by no means implies that we've reached the limits of knowledge in the fields you mention. Therefore your argument is a non-sequitur. People's willingness to fly is unrelated to knowledge of aerodynamics. It's more related to the availability of aircraft, price, comfort and safety (which is dependent on much more than just aerodynamics and aircraft design).

    --
    Seven puppies were harmed during the making of this post.
  8. Re:What bothers me about global warming... by Platupous · · Score: 2, Insightful

    This is apples to oranges.

    Let me apply an anology to your comment that has the same effect. . .

    How many people would get on a medical protocol if it had only a 90% cure rate? What if the designers were only 85% sure it would help you live past the next week?

    Well, why are you so gung-ho about not rewiring the Western world's economy based on degrees of consensus and confidence that are that good?

    Carl Sagan was quite the environmentalist himself, but he still believed that "Extraordinary claims require extraordinary proof." I've never been a fan of that quote because it implies that scientific scrutiny should be applied only to a degree sanctioned by someone's value judgment. But I think a reasonable rephrasing would be, "Extraordinary demands require extraordinary justification."

    Can you provide Your argument? I still haven't seen apples to apples.

  9. Re:Heretic! by kir · · Score: 5, Insightful

    Wait a minute. Did you just say that Freemon Dyson is ignorant ". . .of both the scientific method and the subject at hand?"

    No really. Did you?

    --
    3cx.org - A truly bad website.
  10. Re:What bothers me about global warming... by geminidomino · · Score: 4, Insightful

    Medical protocols are a bad analogy, too. The resulting bad outcomes:

    Procedure doesn't work: Death
    Procedure isn't attempted: Death

    Obviously in a case like that, even a 10% chance is worth taking.

    What if it's a new foot anti-fungal with a 10% chance of causing death? You'll find the 90% confidence somewhat lacking (I hope).

  11. Science not heresy... by Anonymous Coward · · Score: 1, Insightful

    we do not need heresies to solve global warming... we need science and its methods...

  12. Ignore that man behind the curtain! by ydra2 · · Score: 2, Insightful

    And ignore the melting glacier behind him. Do not look at the measurements of sea level and ice caps at the poles. Ignore all those measurements. They mean nothing. It is only the heretic who tells you to ignore your common sense that you must listen to. All those scientists with their electronic instruments and historical charts are of no consequence. Listen to the nay-sayer who speaks the truth because he must be trusted as the only truth just because he speaks differently and just because just because. Any declaration by anybody who claims to know from observation and meticulus detailed record keeping is suspect. We need to put our trust in the nay-sayer who has no obsrvations and no scientific method, but just gut instinct to tell us the truth.

    Follow Brian, he has the shoe!

  13. Re:Heretic! by Yokaze · · Score: 3, Insightful

    Yes, and why not? If I remember correctly, it was Einstein, who said something along the line: People tend to forget that even the greatest experts are almost as dumb as the next person outside their field of expertise.

    He commits, in my eyes, a common mistake of physicists, hubris. (I hold physics in highest regards, and believe physics is the most scientific field of science.)

    > But I have studied the climate models and I know what they can do. The models solve the equations of fluid dynamics, and they do a very good job of describing the fluid motions of the atmosphere and the oceans. They do a very poor job of describing the clouds, the dust, the chemistry and the biology of fields and farms and forests.

    > It is much easier for a scientist to sit in an air-conditioned building and run computer models, than to put on winter clothes and measure what is really happening outside in the swamps and the clouds.

    So, essentially, because he has a fundamental understanding of the formulas involved, he is suggesting, that climatologists do not know, where they can apply certain models and where not and that they are too comfortable, to actually go out and experiment. Thank you, sir, for derogating a whole field of science and scientists, which, if you'd bothered to follow the news, happen to search for new data for verifying the models, by taking ice core samples, tree rings, and more recently wolf bones and in general, follow the same scientific methods as physics do. (Especially astrophysics)

    The results are tested the same way any scientific theory is tested. And the same way in experimental physics, everyone hopes to disprove some theory, as it would carve their name in history, the same motivation has one in climatology.

    --
    "Between strong and weak, between rich and poor [...], it is freedom which oppresses and the law which sets free"
  14. Re:I am so glad he wrote this by pavera · · Score: 3, Insightful

    I really don't think so. What I read said "I studied the models, and they don't take x, y, or z into account, because we don't understand them, but certainly x, y and z have an effect on climate, therefore the models are oversimplifications and cannot be trusted"

    He is not arguing from incredulity, he is stating that the models don't take important factors into account because they are extremely hard to model, or we have never measured them and therefore don't have a dataset to put into a model.

    The models as he states do a great job with fluid dynamics, but they suck at clouds, dust (probably smoke from forest fires and volcanoes too), and anything else that doesn't fit in a fluid dynamics world... which is quite a lot really. And I'm sure you'll come back with "well, if we wait to see if the models are right or not, it'll be too late, so we have to ACT NOW!" That is the default response from any global warming nazi when challenged with "why don't we try to really figure out whats happening before we spend trillions of dollars fixing a problem that might not exist?"

    I swear you environmentalists are crazy. What you are proposing would be like you go to the doctor, you have a slight fever, he does a single test that is incorrect 50% of the time, and then recommends you spend $1,000,000 to get a liver transplant, kidney transplants, heart transplant, bone marrow transplant, and just for fun, chemo cause it might be cancer too. Or, maybe you should just take a Tylenol and call him in the morning? But no, if we wait for just 10 minutes and think about it, and try to get a better diagnosis, well if the first diagnosis is right then you'll be dead, so better just go with that!

  15. Re:Heretic! by timmarhy · · Score: 2, Insightful
    "if you'd bothered to follow the news, happen to search for new data for verifying the models"

    ahem, didn't we just go through this today, with proof that the current accepted models had a y2k bug, and that 1998 AREN't the hottest years on record, but the 1930's are? i suggest you stop talking about models right now good sir.

    --
    If you mod me down, I will become more powerful than you can imagine....
  16. Here's the problem by Sycraft-fu · · Score: 4, Insightful

    You are accepting the answers realclimate.org provides as absolute truth. Guess what? That's also a politically motivated site. They are not interested in trying to present all the information of GW, they are interested in pushing the case that it is real and humans are causing it. So if you take that as your only information source, yes I'm sure you think it is all settled, there aren't any issues. However not everyone sees it that way. I've done some research and before becoming overwhelmed by all the bad science and bullshit, I came to the conclusion that it is NOT as clear cut as many people want to present. I found an awful lot of data being used incorrectly, a massive amount of using computer models to "prove" things (models don't prove things, they help you figure out what should happen so you can test it for proof), a great deal of appeal to "consensus" and a continual demonizing of anyone who wasn't a believer.

    So sorry, but I remain unconvinced and a site like realclimate.org does nothing to change that. What I need is what I consider to be good, unbiased research. So far, I've had real trouble finding it. Things that sounded reasonable in the new bite fall apart when you read the actual journal article and investigate it a bit.

    If you've reviewed the data and find it to be clear and convincing, that's great, but don't assume everyone has to agree with you, or that a person who doesn't is an idiot.

    1. Re:Here's the problem by meringuoid · · Score: 3, Insightful
      You are accepting the answers realclimate.org provides as absolute truth. Guess what? That's also a politically motivated site. They are not interested in trying to present all the information of GW, they are interested in pushing the case that it is real and humans are causing it.

      I am confused here. Which of the statements made by the grandparent do you think are incorrect? Are you claiming that human activity does not release more carbon dioxide than volcanic activity? Or are you just denigrating the source, in the hope that nobody will notice your total failure to address the facts themselves?

      --
      Real Daleks don't climb stairs - they level the building.
    2. Re:Here's the problem by vertinox · · Score: 2, Insightful

      They are not interested in trying to present all the information of GW, they are interested in pushing the case that it is real and humans are causing it.

      That is the problem.

      If it turns out that global warming is naturally occurring event or man made doesn't stop the fact that it is happening.

      We should really be asking instead "What can humans do to stop it?"

      Now the camp that says "Just stop the CO2 emmissions by humans" is rather simple to follow. On the other hand if it is natural than we have to figure out something else do to to drop the temperatures.

      Cover the Sahara and Gobi desert with white reflective paint? Put a million mirrors in orbit? Drop a nuke into a volcano?

      The key feature here is that we should be focusing on what we can do rather than say that its not our fault the boat is sinking and ignore the problem. If the boat is sinking it doesn't matter whose fault it is if we all die anyways.

      A good deal of this problem is that it is politicized, but again... Even if there were no such thing as global warming and we were about to go into another ice age, putting all this CO2 in the atmosphere can't be a good thing for a stable system.

      The earth doesn't exist in a vacuum and the laws of physics tells us this energy goes somewhere.

      Imagine if you will a billion of your white blood cells started heating up. By itself the little things aren't a big deal, but eventually if you get enough of them you'll get a lethal fever.

      --
      "I am the king of the Romans, and am superior to rules of grammar!"
      -Sigismund, Holy Roman Emperor (1368-1437)
    3. Re:Here's the problem by chrb · · Score: 3, Insightful

      You are accepting the answers realclimate.org provides as absolute truth.


      So which of the parent post's points, or points from realclimate.org, are wrong? Specifics, please.

      The realclimate.org guys have established credentials and are professionally employed to researchers studying climate. If you disagree with them, say exactly what and why, otherwise your arguments are just hand waving. Time to put up or shut up.

      So sorry, but I remain unconvinced and a site like realclimate.org does nothing to change that. What I need is what I consider to be good, unbiased research. So far, I've had real trouble finding it.


      Sounds like what you're actually looking for is evidence that global warming either isn't happening, or that human activity isn't the primary driving factor. And for some reason you can't figure out, you're having trouble finding it...
  17. Re:The problem isn't global warming... by timmarhy · · Score: 2, Insightful
    " Is it ok to be an alarmist? To announce doomsday news? To scare everyone?"

    frankly, no, it's not ok. not when your talking about making far reaching economic fuckups that will hurt people who can least afford it. not when there's still HUGE holes in the hypothesis that man made c02 is warming the planet.

    you people KEEP talking about science, yet you apply very little to you model of global climate. fuck, you can't even fix a y2k bug in your model software and you expect us to listen to you?

    --
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  18. Re:I am so glad he wrote this by byennie · · Score: 3, Insightful

    That is why the models don't work. Sure they are complicated and very advanced, but they don't take into account the increased carbon sequestration that plants automatically do when presented with higher CO2 in the atmosphere (as he states in the article). And they also aren't very good at dealing with random things like clouds, dust, or other non-fluid dynamics type phenomena.
    Really? None of the climate models have ever accounted for plants absorbing carbon? Do you know anything about what is or isn't in the models, or are you just pushing your agenda? You are right about one thing, it's not a purely meteorological problem. I didn't mean to imply that it is.

    I love how you just out of hand discredit him because he's not an "expert" in the field. As if thinking rational people can't have a debate about something unless they have a PhD and 20 years experience in a field. How many advanced science degrees does Al Gore have? Years experience studying climate models?
    I discredit "thinking, rational people" who try to refute the CONSENSUS of thousands of scientists with PhDs with their own intuition and half-baked theories. I most certainly don't deny anyone's right to debate the issue. But if you can't back up your argument, you might get discredited in the midst of the debate. And I didn't discredit him out of hand - I read his entire argument carefully. BTW, Al Gore has over 30 years of experience studying climate models - he has been lobbying congress for that long and has consulted heavily with virtually every important scientist in the field over that period of time.

    Dyson is a pretty smart guy you know. Physics and all that, I think he might have at least a basic understanding of fluid dynamics, energy transfer, energy storage... yeah pretty much the basics of "climate". I'd certainly listen to and trust him before Al Gore...
    I never said Dyson isn't a smart guy. Are you saying I should trust his intuitions because he has a background in physics? Stephen Hawking is pretty smart too, but until he takes the time to make a real serious study of climatology, he's not going to get a call on the subject. And you don't see him spouting his opinions without backing it up. So go ahead, trust Dyson because he's a smart guy with a degree in physics, and ignore Al Gore who has devoted 30+ years to championing the work of the world's foremost experts in the field. That's pretty much the definition of simply seeking out like-minded opinions.

    I'm not an "expert" in the field though so don't listen to me either. Of course the only people you will admit to being "experts" in the field will be people who agree with your world view.
    No, I define "experts" as those that are, well, experts in the field. Believe it or not, having silly things like PhDs and decades of research experience are worthy credentials worth paying attention to.
  19. Re:We need more people like him by ibi · · Score: 4, Insightful
    Freeman is a very nice guy and was a good physicist, but he's a lousy politician and an even poorer risk manager. Freeman makes an argument that the biophysics of climate change are complicated and the idiotic "interesting" parent pretty much sums makes my argument for me :-)

    1) The fact that the models may be wrong only means we have to lean *harder* on carbon output. We now know from the ice core records that the climate is not metastable and can in fact shift rapidly when you push it like we are *right now*. The fact that the models aren't perfect doesn't *decrease* the risk it *increases* it. If you're driving on a road where a bridge may have collapsed (e.g. let's say you're in the US on an interstate and the president is a Republican :-) the fact that it's foggy doesn't mean you can speed up.

    2) The business with top soil is amusing but hardly very useful. There's lots of complicated data about topsoil out there (go google young man...) but pretty much all of it suggests that we're loosing megatons of it in the US. In the rest of the world we're loosing it much faster. So what's Freeman's suggestion? Increase topsoil. Really helpful that one. By saying "saying that the problems are grossly exaggerated" he's going to get the giant corrupt corp. agribusiness interests of the world to change all their short-term profit-oriented processes to increase topsoil? No. They'll point to the "what me worry?" part of his article and ignore the rest just like the parent.

    I hope we get really lucky and somehow there's some hidden feedback loop in the climate that bails us out. Cause the way every off the reservation comment by some cranky old scientist gets played up by the media means there's no way in hell we're gonna get out of this by rational planning :-)

    One final word:

    No computer model of atmosphere and ocean can hope to predict the way we shall manage our land. Actually you don't need a computer model. Just work for a big corporation (instead of say, the eden-like Institute for Advanced Studies for most of your life), know that large corporations are who are going to be managing that land, and the answer is clear. We're gonna *rape* it. Cause next year's topsoil doesn't effect this quarter's profits so it's not material.

    When you're a sociopath waiting for marriage don't enter into the equation, if you know what I mean...

  20. Re:Heretic! by TapeCutter · · Score: 2, Insightful

    Far be it from me to argue the authority of the great Dyson but last time I checked baseless ad-homs on strawman "climatologists" are not part of the scientific method.

    Perhaps arrogant would have been a better word to use for his take on the "scientific method", he simply has the opinion that only he can judge it and is on a crusade to enlighten others, yet freely admits he knows little about their subject (ignorance). If he were talking about politics and mass media I would agree but he is not.

    If he does trully understand "the republic of science" and it associated procedures then I can only assume he is deliberately ignoring it when he infers that models are useless and climatologists are not "real" scientists. If either were true then ALL models and their results would be useless, science would be reduced to a series of anecdotes passed down by old people trying to sell books.

    --
    And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
  21. Actually you need to prove it way beyond that by Sycraft-fu · · Score: 4, Insightful

    At least you do if you are doing real science. Really doing science isn't about running a computer simulation to show something, saying "This proves it," and then shouting down anyone who disagrees with you as an idiot. Real science is in fact bending over backwards to try to find anything you can wrong with your theory and testing it. Because you see we don't prove things true, we show them to be not false. That's not the same thing. Doing an experiment that supports a theory doesn't show the theory is true, it provides evidence it isn't false. Every time you test it again, you are more sure it is true, every time you come up with an alternate hypothesis and falsify that, you are more sure it is true. Once you've done everything you (and others) can think of to try and prove your theory false and failed, then you say its true (though you may be proven wrong later).

    Real science, proper science, is going for proof to a very high standard. I'll quote Richard Feynman since he said it very well:

    "It's a kind of scientific integrity,
    a principle of scientific thought that corresponds to a kind of
    utter honesty--a kind of leaning over backwards. For example, if
    you're doing an experiment, you should report everything that you
    think might make it invalid--not only what you think is right about
    it: other causes that could possibly explain your results; and
    things you thought of that you've eliminated by some other
    experiment, and how they worked--to make sure the other fellow can
    tell they have been eliminated.

    Details that could throw doubt on your interpretation must be
    given, if you know them. You must do the best you can--if you know
    anything at all wrong, or possibly wrong--to explain it. If you
    make a theory, for example, and advertise it, or put it out, then
    you must also put down all the facts that disagree with it, as well
    as those that agree with it. There is also a more subtle problem.
    When you have put a lot of ideas together to make an elaborate
    theory, you want to make sure, when explaining what it fits, that
    those things it fits are not just the things that gave you the idea
    for the theory; but that the finished theory makes something else
    come out right, in addition.

    In summary, the idea is to try to give all of the information to
    help others to judge the value of your contribution; not just the
    information that leads to judgment in one particular direction or
    another."

    If you want to argue for a much lower standard, ok, but understand that isn't good science, that's pseudoscience. Pseudoscience is where you have some experiments, maybe contrived maybe not, to support your claims and that's all. You don't try to prove them false, in fact you ignore any contrary evidence. Instead you rely heavily on personal testimony and showing how many people agree with you (a large consensus). You don't go for strong evidence, you go for strong persuasion.

    You can do that if you like, but please don't confuse it with good science.

  22. Re:Heretic! by Psion · · Score: 2, Insightful

    About those models, what do you have to say about this? It seems to me that if all the models have been predicting that cirrus will trap heat leading to a positive feedback, but the actual measurements show the exact opposite, that at the very least the models have a big flaw, and at the worst this might be an indication of a bias in the construction of those models. Fudged data.

  23. Re:Heretic! by marcello_dl · · Score: 2, Insightful

    And here is a textbook example of "ipse dixit". If you're going to challenge parent, uttering a name isn't sufficient.

    Besides, there is no heresy. There is a misdirected debate using the words "global warming" instead of "climate change". So "heretics" can just isolate the global temperature, challenge that notion, and get away with the massive non sequitur "if this data is challenged, then the whole issue is challenged". And most interests are on the side of "heretics". It's profitable to make resources scarce and pollution and waste is doing just that. How much we pay for oil and bottled water?

    Is the climate changing? Sure, ask anybody over the age of 30. Is this part of some natural cycle? most probably. But is pollution a risk to the development of such cycle or are all the disasters in the news part of the cycle? Chaos theory says little perturbations can lead to big results. Heretics say little perturbations are negligible and disasters are natural. Nobody can challenge that as we don't have an unpolluted earth to experiment with, we're left with models whose results depend on the assumptions and approximations made to build them.

    All of this is moot. Pollution is hurting us as we speak and is preparing a debt which might end up as the most effective mean of enslavement. You are already paying for water. What will happen if air is not breathable, cultivations need shielding from the sun and the pollution, and you need therapy to have a little chance to procreate? That makes "1984" look like a bedtime story.

    --
    ---- MISSING MISCELLANEOUS DATA SEGMENT --- [sigdash] trolololol
  24. Heretic == Feedback mechanism by MindKata · · Score: 3, Insightful

    "We all know that everyone who doesn't believe as we do is evil and wants to kill babies." ... "Can't we just stick with insulting people etc.."

    Unfortunately science has to contend with being performed by humans. So human bias can creep in.

    One of the parent posts shows this...

    "All scientists by definition are aiming for heretical status every time they write a paper or perform an experiment."

    That's the ideal of science, but unfortunately humans rarely live up to ideals.

    That statement about "every time they write a paper" etc. also overlooks the pressure on scientists, who's career can be seriously damaged by them speaking out against current accepted ideas in science. This leads to a tendency forcing scientists to, toe the line, so to speak. We are pack animals after all and unfortunately that pack mentality creeps in. (A pack is only a pack when everyone stays in the pack. So packs form with behavioural pressures on the members of the pack, which bias them to staying in a pack). Fear is a good motivator and fear of being thrown out of the pack is something a pack animal will try hard to avoid. (Being thrown out of a pack means you are easy prey). Unfortunately pack behaviour still persists in humans.

    We need heretics to stress test every idea not just in science, but also in society. Every idea needs to be continuously stress tested to find faults in it and find holes in it.

    The stress testing forms the role of feedback in a system keeping it from going widely out of control. Loose feedback and the system fails by going to an extreme. (The corrupted thinking of the Taliban prove this with the extremes they went to before 911 with how they were silencing anything which could tell them they were wrong. The Nazis also proved this with again silencing anything which could tell them they were wrong. One a religious belief the other a political belief, (like so many other examples from history of extreme beliefs), yet underneath the specifics of the belief, a behaviour which leads to a system failing by going to an extreme). (A system, as in a group of people).

    Unfortunately the ones who seek to be the pack leaders want people to stay in their pack. They want people to toe the line. Dissenters will be thrown out of their pack or publicly discredited or even destroyed as a warning to others to toe the line.

    This pack behaviour works against science. Scientific progress can only be achieved, if people step outside of the pack. Hence they are identified and labelled as heretics.

    What Freeman Dyson is saying about the need for heretics in science makes complete sense.

    Our societies need heretics because without them our whole social system is a machine without feedback, so it will go wrong and run to extremes.

    The unfortunate thing is that with the ever present pressure from the pack leaders to get people to toe the line, we face a growing danger in the years to come. The Internet provides the pack leaders with an unprecedented level of identifying and controlling dissenters. We need heretics more than ever. As soon as people can no longer speak out against other beliefs, the social system fails by going to extremes and there are no good extremes, as for every winner there are loosers. Create too many loosers and you head towards civil unrest and even wars.

    We need heretics more than every to identify and prevent injustice. Yet in a world rightly fearful of terrorists, we have a world running to the other extreme of Big Brother. A world that will not allow heretics. The irony is the terrorists are run by pack leaders who want people to toe their line.

    Science is getting caught up in the global battle for power over which beliefs will dominate the planet. The irony is the pack leaders "toe the line" behaviour which results in a social loss of feedback, which occurs in all societies, is ultimately the central cause of the worlds problems. And we have had this problem throughout human h

    --
    There are 10 kinds of people in the world... those who understand binary and those who don't.
  25. Re:We need more people like him by Archtech · · Score: 2, Insightful

    "...but he's a lousy politician..."

    I should damn well hope so. Honesty is a prerequisite for any serious scientific work.

    --
    I am sure that there are many other solipsists out there.
  26. Re:Heretic! by Znork · · Score: 4, Insightful

    "The only way to test the models is to test against random multi-decade historical records and check what the models (plural) predict"

    Eh, you know, that's not a valid method for testing models. If you do that you only end up with models that perfectly predict historical data. Such tests say nothing about the accuracy of future predictions, especially, and in particular if they attempt to predict changes outside previously gathered data (which, by definition, due to a whole host of changes in everything from industrial particulate matter releases to ecosystem changes means pretty much any dataset apart from the one you've fitted the models against).

    By using that method I could have a perl script randomly choosing factors from women hat sizes to the price of beer in Nice and the population of penguins on iceshelves until I get a perfect match with the historical data. With as little data as we have I'd bet I'd be able to churn out several dozens of models that perfectly predict history. None of which will be the least valid for the next year.

    Remember last presidential election? Someone spending far too much time looking at stats realized that the outcome of the Washington Redskins home football games accurately predicted the win or loss for the incumbent since 1936. This indicated that the incumbent would lose. Despite being a perfect predictor for more than 70 years, validated against historical data, it turned out to be entirely and utterly useless for predicting the future.

    See? Validating against historical records can only _disprove_ a model and theory, it doesnt ever indicate any form of reliability for future predictions. To validate the accuracy for future predictions you need to accurately predict the future, and the more variables you have, the more models you have the more times you need to accurately predict the future before you can ascertain any level of reliability.

    Compare with the old scam where some company sends you information accurately predicting the outcome of a game the next weekend, and offering to sell you the book with the method to do those accurate predictions yourself. After three weeks of getting the right prediction you buy the book.

    Of course, unbeknownst to you, the were starting out with a mailing list of a thousand people, sending half the info that one team would win, the other half that the other team would win, then repeated next week with the ones who got the correct result, dividing into groups of 250 instead. The third week they've sent accurate predictions to 125 suckers who'll buy the book.

    The more prediction models you make, the longer you have to verify them all to ensure that any surviving models werent just successful on random chance and shotgun theorizing.

    Compare with newtonian physics where the theories were simple in form and easy to test and accurately predicted the outcome of a vast range of experiments. Yet, even after millions or billions of validations of the theory, when stepping out of the 'ordinary' bounds of those tests, the theory was not quite as accurate as even those 'future' predictions would indicate.

    What it all comes down to is that current climate models simply cannot be verified as accurate predictors due to flaws in the fabric of reality, such as insufficient time, insufficient numbers of earths, insufficient reliability of underlying data, etc. For what it's worth you might as well use the hat sizes or Redskins and wonder why your model wasnt correct in 50 years, despite using all available test data.

    And just to clarify my own position; I think we should quit using fossile fuels immediately, slap a shitload of taxes on their use to encourage as fast transition as possible. I motivate that by the real and verifiable millions of dead through wars and cancers and the horrendous evil following their exploitation rather than the bad science of climate change.

    And as for the climate change aspect; dont put all the eggs in the climate model basket, the holes are large and newt

  27. Re:Heretic! by Russ+Nelson · · Score: 2, Insightful

    Far be it from me to argue the authority of the great Dyson but


    You would have been less wrong had you stopped there. Freeman has the cojones; you don't.
    --
    Don't piss off The Angry Economist
  28. Re:Heretic! by E++99 · · Score: 2, Insightful

    If he does trully understand "the republic of science" and it associated procedures then I can only assume he is deliberately ignoring it when he infers that models are useless and climatologists are not "real" scientists. If either were true then ALL models and their results would be useless, science would be reduced to a series of anecdotes passed down by old people trying to sell books.


    Models are useful for predicting results based on your assumptions. They are not useful for coming up with the right assumptions in the first place. The AGW assumptions are faith-based. Those assumptions are hard-coded in the models, and everything else is fair game for tweaking, in order to make the models' results fit as closely as possible the dataset we have (particularly the last 100 years of temperatures). This activity and its accompanying doctrine has nothing to with science, and its claims of prophetic power are, while typical among people of such strong faith, not to be confused with scientific prediction.
  29. Re:Heretic! by ceoyoyo · · Score: 2, Insightful

    Things are different when you're talking about a highly complicated system. We also need something a little more accurate than personal intuition for the big issues.

    If you have enough features to choose from you can ALWAYS find a function that will match them to a desired output. So if you have enough climate features to study you WILL be able to find a model that will match them to any given historical data. That says nothing about how they'll perform predicting the future though.

    When you construct a model it's necessary to test it's predictive ability on new data, that was not used to construct the model. To complicate things, if you're constructing a lot of models, and you keep creating new ones until one fits your "unseen" data, you'll eventually find one that seems to work. So usually you have to make a good argument about what features you're going to consider and what their effect should be BEFORE you start model building.

  30. Re:Begin the Spin by crashfrog · · Score: 2, Insightful
    Will this do?

    Sure, but it just highlights the disparity between the press releases and the actual research. The research you've linked to doesn't actually dispute any aspect of any climate model that shows warming; but put it in the hands of the deniers, and suddenly it's the source of a hundred press releases and interviews saying "there's no scientific consensus on global warming."

    You know, like you just did. Have you even read the article? I went and looked it up in my campus library. Did you just read the abstract?

    You also presented me with a handy "etc." that you claim makes an easy out, although the examples you cited might be just as easy to prove as rocks don't fall down and the sky isn't blue.

    Well, look. You can't claim that something isn't falsifiable just because it isn't false. Those two things aren't the same at all. You can falsify the contention that rocks fall down; you're just going to have a hard time doing so, since that's not a false contention.

    Things are unfalsifiable when there could be no conceivable way of knowing whether they were false or not. If anthropogenic climate change is fundamentally false we would discover that pretty quickly. There'd be a very good, obvious reason why the enormous tonnage of human CO2 emissions just disappeared in apparent violation of physical law, for instance.

    'm sure there are long-term measurements coming from other sources, but I never see them in discussions about climate.

    Who don't you go look up what you're looking for? Why are you still paying more attention to debates among laypeople than to the scientific evidence? If you want to know what's actually going on, then go to the primary research - on your own, instead of when asked to do so. If you just want to keep trying to score points in internet debates, you'll keep on doing what you've been doing, I guess.

    Do you even know who John Christy is?

    Sure. He's the guy who once said:

    It is scientifically inconceivable that after changing forests into cities, turning millions of acres into irrigated farmland, putting massive quantities of soot and dust into the air, and putting extra greenhouse gases into the air, that the natural course of climate has not changed in some way.


    and discovered this warming trend in satellite-measured surface temperatures, over the same period that the Earth's total insolation (the energy incoming from the Sun) has been decreasing.

    Your problem is that you allow the climate change deniers to blow the smallest level of scientific discourse and disagreement vastly out of proportion. A minor quibble in terms of how cloud cover should be modeled becomes a vast schism between enviro-nuts and oil barons.

    The creationists do the exact same thing in their field, of course.

    You might do well to understand something about the people you're dismissing as "selfish greedy bastards" who don't take the time to do the research.

    And you might do better to present evidence instead of personalities. The fact that you're still more concerned about who is talking rather than what they're saying (and what data they're presenting) keeps on proving my point - that climate change denial has nothing to do with the evidence and everything to do with feeling like you're part of the "elite" who, unlike the stupid masses, have got it "right."
    --
    I never have frustrations, the reason is, to wit:
    If at first I don't succeed, I quit!