back to article Are the ice caps melting?

The headlines last week brought us terrifying news: The North Pole will be ice-free this summer "for the first time in human history," wrote Steve Connor in The Independent. Or so the experts at the National Snow and Ice Data Center (NSIDC) in Boulder, Colorado predict. This sounds very frightening, so let's look at the facts …

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  1. Anonymous Coward
    Anonymous Coward

    @El Rupester

    It's getting too far off topic to go much further, but I just wanted to assure you that I absolutely detest Intelligent Design and consider myself quite "enlightened". Suffice to say, even though I wasn't displeased with the Kansas school board case result, nevertheless, I respect the right of education boards to choose curricula as a matter of self-determination and dislike attempts from any of the Judiciary, Executive or Legislature to intervene to the level of detail of what specific science topics can/should/must be taught in schools. Of course, sometimes, education board members are appointed by governments ....

    Afterthought: If, however, there's a case of demonstrable "harm" as a result of what's taught, then I suppose that's a different matter and that could be heard in court, IMHO.

  2. chris adkins
    Coat

    whats next

    Global Warming/Climate Change is this decade's global catastrophe

    before that i think it was AIDS

    and what happened to being scared about Nuclear Weapons.

    I wonder what the next thing is i need to be scared about so that i can go and purchase products to make me feel all secure again.

  3. Dodgy Geezer Silver badge
    Alert

    A useful reference book...

    "I wonder what the next thing is i need to be scared about ..."

    chris adkins

    Chris, may I recommend the book "Extrordinary Popular Delusions and The Madness of Crowds", by Charles Mackay (pub 1841)? It provides a comprehensive description of the idiocies and baseless fears of Western European humanity from about 1550 to 1840. I am sure you will find something in there to be frightened about - plus ca change, plus c'est la meme chose....

    Incidentally, I have often thought that the book could do with updating to cover the last hundred years - perhaps an El Reg contributor would oblige.....

  4. Neil

    @Vetis

    "Not sure why its on the reg but love the article."

    The slogan "Sci/Tech News for the World" and the fact that the article is in the Science section might have something to do with it.

  5. Dr Stephen Jones

    @Rupester

    "The level of blatant ignorance, people who can't / won't think for themselves, or even try to understand basic science."

    I agree, Rupester. Before the enlightenment, social policy was set by authority from interpretations of the word of God. Then rationality and deduction came along, and we demanded that theories require evidence before use them as the justification for policy.

    "Lets start with the simple facts: CO2 absorbs infra-red. More CO2 => more heat aborbed and the temperature goes up. CO2 levels have gone up 50% and are accelerating, so heat will go up more."

    The facts pertain to a hypothesis, which is an interesting one. But there is no indication that that recent rapid rises in CO2 have *caused* the predicted effects: the CO2 and temperatures are out of phase. Your challenge is to demonstrate proof that human agency has significant effects on climate that cannot be explained by variance in natural phenomena. (The key here is significant). Correlation does not equal causation, however, and unless your hypothesis can find this evidence to support it, then it's as useful or worthless as any other hypothesis.

    For example, I challenge you to disprove *my* hypothesis that the cosmos is turtles all the way down. Can you prove me wrong? But then it's incumbent on the person advancing the hypothesis to provide compelling evidence. Anecdotes ("I think I saw a turtle…" will not do. Nor will computer models that produce turtle shapes.

    Without this evidence, you're navigating entirely using Belief.

    "I do not have a scientific model to prove my house will burn down this year but I still pay buildings insurance"

    Well, this shows you haven't been entirely convinced by anecdotal evidence or computer models - or perhaps you've taken a close look at the IPCC's summary of scientific understanding and discovered that scientific knowledge of natural forcing factors is officially classed as "LOW". In other words, much more research needs to be done.

    But in saying "maybe, maybe not, don't matter" then trying to justify that position, you're getting confused. Taking out insurance is a rational response to a quantifiable risk.

    The rational response here is a) find out whether there is a problem b) whether we need to do anything about it and c) dependant on a) and b, then weigh the costs and benefits of both mitigation and adaptation strategies.

    Agreed? You've simply flown from a) to c) using Belief as your guide, to gloss over the missing logic. Presumably because you find the End-Times myth making compelling.

  6. Anonymous Coward
    Pirate

    Sheesh,

    When will the boffins realise that they're all completely wrong and Global Warming is caused by the decline in Pirates since the beginning of the 18th century!

    Arrr it be correlation off the port bow mehearties!

  7. Mark

    @Dr Stephen Jones

    "The facts pertain to a hypothesis, which is an interesting one. But there is no indication that that recent rapid rises in CO2 have *caused* the predicted effects: the CO2 and temperatures are out of phase."

    That is not a hypothesis. You can try it yourself.

    Wear a jumper. A big, thick wooly jumper.

    Warm? Not yet.

    Later... Warm? You bet.

    IT LAGS!!!!

    "For example, I challenge you to disprove *my* hypothesis that the cosmos is turtles all the way down. Can you prove me wrong?"

    Yup. Looks down. No turtles. I've been in Australia. No turtles there (which would have to be lying on their back on Australia.

    "Agreed? You've simply flown from a) to c) using Belief as your guide, to gloss over the missing logic. Presumably because you find the End-Times myth making compelling."

    No, this is jumping from a to c because we don't have room (or the capability: how you do put a multi-variate graph on El Reg's comment pages?) to put the workings. Go look at the IPCC. There's your (b).

    Where did you get that "Dr"? Zaire Internet College???

  8. Tim Williams
    Stop

    The oil is running out

    The oil is running out, that should be pretty obvious to most people by now. I no longer believe the "global catastropy if we don't change" theory, not because I believe the science is wrong in principle, but because I no longer believe that there is enough of the stuff left that's causing the problem (primarily oil) for us to reach the worst case scenario.

    Concerted international action might bring the current oil price spike down, but that will at best give us a temporary breathing space.

    Whatever you believe, the oil is running out so we need to be more efficient with what we have left and where possible switch to something better.

  9. Steve
    Stop

    Fresh water effects on the Gulf Stream

    Melting polar ice will have an effect, it will dilute the salinity of the sea water and cause the Gulf Stream to slow/change/stop and we will all freeze/boil/die!

    I'm no expert, can you tell? But I can explore possibilities not covered in this article, which IMO would not stand up to scrutiny.

  10. Thomas
    Thumb Down

    Hansen's first article

    It is claimed that in the 80s Hansen stated that the North and South poles should warm the same. However, if you bother to read that article you quickly see that this is the equilibrium response, i.e. what will happen if you double CO2 and wait a century or two to let temperatures stabilize. If you look at the transient response the far larger amount of oceans in the southern hemisphere will be able to absorb more heat, delaying the warming.

  11. El Rupester

    @ Dr Stephen Jones

    I'm sorry, I am really not sure I follow you here...

    El Rupester>"Lets start with the simple facts: CO2 absorbs infra-red. More CO2 => more heat aborbed and the temperature goes up. CO2 levels have gone up 50% and are accelerating, so heat will go up more."

    Dr Stephen> The facts pertain to a hypothesis, which is an interesting one. But there is no indication that that recent rapid rises in CO2 have *caused* the predicted effects: the CO2 and temperatures are out of phase. Your challenge is to demonstrate proof that human agency has significant effects on climate that cannot be explained by variance in natural phenomena. (The key here is significant). Correlation does not equal causation, however, and unless your hypothesis can find this evidence to support it, then it's as useful or worthless as any other hypothesis.

    You missed the point. You (and a lot of people on this thread) seem to assume that the only basis for AGW is some observed rise in temperature, which is then retrofitted onto a rationale. If that were the case, then your "Correlation does not equal causation" would obviously be a valid point.

    But it isn't.

    The physics is that CO2 absorbs IR re-radiated from the earth

    If you have any observations to disprove that, I'd be intrigued...

    So (all other things being equal), more CO2 = more heat absorbed. That's not "hypothesis" it is simple logic.

    Indeed, it is accepted: that is why Venus is hotter than it "ought" to be, and if it were not for greenhouse gases (water, CO2, methane) thanb earth would be far colder.

    Again, if you have any observations to disprove that, I'd be intrigued...

    Then comes the hypothesis, which dates back to Arrhenius in 1896 who put numbers to the "rise" and estimated that halving of CO2 would decrease temperatures by 4 - 5 °C and a doubling of CO2 would cause a temperature rise of 5 - 6 degrees Celsius

    This is not searching for a carrelation. Nor is it epidemiology where we see a pattern and try to derive a hidden, underlying cause. What we are doing is getting (noisy, inaccurate) data to test a prediction based on simple, verified physics.

    Now, the latest data does not exactly align to Arhhenius' predictions. The key words "all other things being equal" - because they aren't. we have other factors: solar cycles, El Nino, positive feedback from albedo, negative feedback, etc etc

    But the huge fallacy is in assuming this is seaching for cause from a correlation: it is starting with physics predicting a correlation. If we do not see one, then we still know the physics is there, but there are other factors going on too which swamp it.

    But no-one I have seen as told me what those things are which mean the earth is actually cooling at precidsely (fortuitously) the rate to balance the heating

    So, if I worry about AGW I have:

    Basic physics + predictive theory + measured data on imputs + observed (if noisy data) on outputs confirm causaility" => all of which confirm why I ought to be worried

    I would describe that as "a rational response to a quantifiable risk"

    If you want to tell me I'm wrong, I'd be delighted. But to do, I'd like to see an explanation that explains why the greenhouse effect that observably worked from 0 to 260ppm of CO2 suddently stopped working as we rise to 450ppm or beyond.

    "Correlation does not imply causality" is a good slogan.

    But "Agreed physics + Predictive model + hard data confirms causality" is a better one

  12. Anonymous Coward
    Happy

    Myths

    So is it just an urban legend that the north pole is frozen in ice, in the same way that we used to think that the moon was made of cheese and that the earth was flat until we went to look?

  13. Anon Koward
    Pirate

    @whats next

    I have read through all the comments and I was waiting to see if anyone had noticed that, (nope all too busy debating trends in graphs and coming up with a myriad of intellectual insults for each other).

    It is a sad fact that scientists don't earn enough money in their chosen career that they have to resort to scare-mongering tactics such as global warming, AIDs etc to raise grant money as job protection but let’s not forget it is a fact.

    The other aspect to all of this is that these disaster scenario's play into the hands of the mostly bored, commonly drunk jurno's and politicians. It's a safe topic to write/talk about as it automatically spurns this type of lengthy debate.

    I can in all honesty say that I neither like nor dislike Al Gore and his message on Global Warming I respect hi ability to make him very large sums of cash, marketing on the latest disaster scenario.

    In summary are we all going to burn up in a Venus like cataclysm as a result of Global Warming, no? What do I base that on, what graphs or facts? None I call it faith* ;)

    *Not the religious zealot's faith in some unknown entity but the type of faith that Physicists has about Quantum Entanglement or Biologists over the creation of life..

  14. Unkle Al
    Dead Vulture

    @whats next by chris adkins

    I'll tell you what to be scared of next: Imagine someone with influenza is exposed to and contracts H5N1 avian flu. The theorized exchange of genetic information between the two virii could enable H5N1 to become an upper respiratory infection, dramatically increasing communicablilty. (H5N1 being a lower respiratory infection limits the rate of infection from human to human) So now, the mutated/enhanced H5N1 is easily spread from human to human and retains a very high mortality rate. Imagine the 1918 flu pandemic with a possibly higher percentage of the global population infected and much higher mortality rates.

    Dead bird, obviously.

  15. Jim Middleton
    Boffin

    If you actualy look at the graph...

    You'll see this statement is incorrect:

    "Summed up over the entire earth, polar ice has remained constant. As seen below, there has been no net gain or loss of polar sea ice since records began."

    If you actually look at the graph, you'll see that the global sea ice area is clearly trending downward over the period depicted. The blue line is the reading for a certain day, the brown line is the mean over all the years depicted for that calender date. The blue line is above the brown line in the early years, and clearly below the brown line now. i.e. the global sea ice is trending downward - I'd say by about 5% over the last 30 years, by eyeballing it.

    Is it due to man made global warming? I don't know. But if you are going to use graphs, at least understand what they represent before you publish them.

  16. Steven Goddard
    Linux

    Excellent discussion about the Arctic climate

    http://www.john-daly.com/polar/arctic.htm

  17. Anonymous Coward
    Jobs Horns

    Follow the money

    WRT the notion that climate scientists are motivated by greed to "push" AGW: it should be obvious they can make more money by "debunking" than by "pushing."

    It's probably true that, if people are scared about global warming, more research funding money goes into the pool for which climatologists compete. Some scientists may see their own funding prospects improving modestly if they support the AGW consensus. I'd be might surprised, however, if anyone's getting rich by publishing pro-AGW findings.

    OTOH, people (like our iconic friend here) who make money in the fossil-fuel market stand to lose billions if serious AGW abatement policies are adopted. They'll always be ready to outbid the AGW "pushers" for favorable scientific conclusions. If I were a climate scientist who was motivated primarily by greed, I'd be working for the "debunkers," not the "pushers."

    Something to keep in mind when evaluating research findings.

  18. Daniel
    Happy

    Rising Sea Levels

    Now like every other person here, I have a half contrived view on this. It's not melting ice caps or any other global warming nonsense causing rising sea levels.... its the navy

    Think about it, there are more boats now then there were many years ago. As a boat sinks, it displaces water, and we then build a new boat which also displaces some water... the sea will continue to rise the more boats we put into it...

    Don't believe me? Put a boat in a glass of water! it will destroy the glass... in this case the glass is representing the world... ergo, boats destroy the world.

    Rock on the armchair scientist

  19. Dodgy Geezer Silver badge
    IT Angle

    @ (another?) AC..

    "WRT the notion that climate scientists are motivated by greed to "push" AGW: it should be obvious they can make more money by "debunking" than by "pushing."

    Tell that to Steve McIntyre. No doubt there will come a time for debunking, when all the little ACs will run to explain how suspicious they were of this scare, but how they had to keep quiet for one reason or another, but it's not yet. If you debunk now, you get the reward of the late, great John Daly....

    Oh, and...

    "...I'd like to see an explanation that explains why the greenhouse effect that observably worked from 0 to 260ppm of CO2 suddently stopped working as we rise to 450ppm or beyond..."

    El Rupster

    There is a saturation point, beyond which greater concentrations of CO2 cease to have any effect. You can play with some graphs here: http://www.applet-magic.com/radiativeff.htm

  20. Anonymous Coward
    Anonymous Coward

    "getting rich by publishing pro-AGW findings."

    @AC: You don't follow the news closely. The bankers are piling into AGW:

    "Sir Nicholas Stern, author of the famous Stern Report, which underpins many an argument in favour of climate change mitigation, is behind a 'carbon credit reference agency' launched today.

    "By 2020 the global carbon market could be worth EUR 240-450 billion” says Lord Nicholas Stern, Vice Chairman of IDEAGlobal Group, in the inaugural issue of CARBONfirst"

    http://www.ideacarbon.com/press.asp

    $ir Nicholas $tern indeed.

    http://www.climate-resistance.org/2008/06/ir-nihola-trn.html

    AGW keeps the wheels greased nicely.

  21. El Rupester
    Thumb Down

    @Dodgy Geezer

    re "Follow the money"

    Absolutely. And, of course, Greenpeace is notoriorously far richer than Exxon.

    /sarcasm.

    You progress in science by publishing somethjing new.

    How many papers do you think were published this year on "Yeah, Einstein was right" rather than "Here's how to extend Einstein and fix what he missed". Well, few of the latter, cos no-ones done it yet: but that is what everyone is *trying* to do, as that is where the money is.

    Re saturation.

    I read it.

    For a start: "That leaves about 0.5°C as the anthropogenic effect. [from C02]"

    -- so he is hardly arguing against AGW, is he?

    He is hoping that it won't be too bad: After all, "As Vladimir Putin has said, "an increase of two or three degrees wouldn't be so bad for a northern country like Russia."

    So that's all right then.

    Polar ice? Lowered albedo & positive feedback? Disruption of Gulf stream? All in areas he sees warming as likely, but all with potentially worrying broader consequences.

    Even if you believe his argument, it is hardly reassuriung.

    But I don't.

    1) How convenient we are at that saturation point. "Out of all the concentrations in the world, you happen to walk into mine"

    Uhh... sorrry... got carried away there. But you get the point. Why *this* concentration? Why not 500pm? Or 800pm? Or 5000ppm

    2) He alleges that we are between C & D. But there are no numbers, no maths - and no linkls.

    By his own graphs, at low concentrations (between A & B) the effect is steep. We are far from saturation:(watrer vapour of 0.03 and CO2 of 0.0004) so I think (on the same evidence as he has) we are between A & B where it is steep.

    Prove me wrong: give me a fact or two.

    3) There is no saturation: there is a decrease in gradient. If this were only effect then all his point would prove is that the global warming would slow down - but will still be happening. But it isn't the only effect: so now we are hoping that (unkown/risky) negative feedback may be is stronger than (unknown/risky) positive. Uhh.. great.

    4) But the atmosphere varies. At high altitudes it is dry, so it is nothing like saturated.

    5) In a word "Venus". If there were saturation at low concentrations of CO2, the temperature there would not be what it is.

    QED

  22. Brandon
    Paris Hilton

    zzzZZZzzz....

    The only part interesting me in the whole global warming story is when my cost of living goes up because of some un-proven hypothesis. Then I start to care about global warming...

    Sure, I care about the environment and preserving our water sources and farm lands, because I need to eat, and drink, as do my family, friends, and community, which I also care about. How am I going to sell a product when all of my consumers are dead from poisoned water supplies, or tainted soil?

    Paris because she's never cold in her southern most regions...

  23. El Rupester
    Boffin

    @Dodgy Geezer (PS)

    Here's a more detailed discussion

    http://www.realclimate.org/index.php/archives/2007/06/a-saturated-gassy-argument/

    Apparently, the saturation point is about 10,000 times what we now have.

    So it won't help any time soon (we'd suffocate long before then)

    And as for my Venus point:

    > The temperature of Venus (~ 100% CO2 atmosphere, at 10 bar)

    > …..surface = 467C, (boiling sufur)

    > …..but the expected value without a greenhouse effect = -42 C

    > That ’strongly suggests’ the Earth’s CO2 level isn’t at a saturation value.

    The comments do meander a lot, but the article and the links do a pretty good job of showing why Mr Watkins has over-simplified, and what he has missed in not calculating the actual numbers.

  24. Mark
    Boffin

    Saturation

    "There is a saturation point, beyond which greater concentrations of CO2 cease to have any effect. You can play with some graphs here: http://www.applet-magic.com/radiativeff.htm"

    Note three things:

    1) Sea level concentrations. Increasing concentration increases scale depth and increases the depth of the insulating layer, reducing power losses to space.

    2) Unsaturated bands. The edges of the bands will get thicker and the complete absorbtion band will widen. As you go UP the frequency scale, the energy you're keeping in goes up

    3) Increasing by twofold has never been said to increase absorption twofold. That we get less than that doesn't mean it's increasing.

  25. Name

    Guys, grow up.

    Guys, seriously, deal with it.

    Its a reality and we can't afford to futz around. In fact even if the fiction that GW was untrue was itself true - its not a failsafe game, the failure mode is too catastrophic to be acceptable.

    Stop pretending you can argue with numbers and facts, you can't.

    And go and read up on Chaos Theory - the rising temperature itself is likely to be the least of our problems.

  26. Anonymous Coward
    Dead Vulture

    Increased variability

    Climate change (global warming being a wrong term) only means "increased variability" i.e. an increase in extreme events. This is caused by the weakening, by human activity, of the earth's dampening effect due to pollution, deforestation, urbanisation, green-house gaz, etc.

    The whole carbon story is over-estimated and now driven by a feed-back loop between policy makers, media and sicentists.

    To my opinion, pollution (an its long term effect) is a far more important problem to tackle.

  27. Mark

    Re:zzzZZZzzz....

    What unproven hypothesis?

    Do you complain about your medical bill when the doctor/dentist/veterinarian charges you for an operation for something you haven't yet suffered from?

    Do you hate that you're told smoking will kill you and have extra tax placed on smkokes for an unproven hypothesis (you haven't died from cancer yet!)

    Stupid twat.

  28. Mark

    Re:"getting rich by publishing pro-AGW findings."

    So what's turned all these conservative (us-style) capitalists into tree-hugging hippies? Maybe that there IS proof enough that doing NOTHING will be risking MORE capitalist destruction than doing SOMETHING?

    I bet if the bankers were still doing nothing, you'd point out that this is proof that the arguments are not convincing...

  29. Dodgy Geezer Silver badge
    Heart

    @ El Rupster et al

    "re "Follow the money"

    Absolutely. And, of course, Greenpeace is notoriorously far richer than Exxon.

    /sarcasm."

    Roy Spence reports:

    "ExxonSecrets.org notes that I have given talks on global warming at conservative think tanks like the Marshall Institute, implying that I have some sort of financial relationship with them. In truth, I received no speaking fee for these talks -- but I HAVE been paid for giving talks for environmental organizations in several states. I wonder why ExxonSecrets.org doesn't mention this connection to "Big Environmentalism"? After all, they are the ones who have paid me speaking fees -- not the Marshall Institute."

    It looks like the environmental organisations ARE richer than conservative think tanks? /sarcasm?

    "Apparently, the saturation point is about 10,000 times what we now have."

    The actual saturation point is an asymptote. The effect will become insignificant long before it is reached.

    "Prove me wrong: give me a fact or two."

    Well, I suppose the most obvious fact would be the published world temperatures. These are now plunging quite sharply, as we seem to have gone over the top of this cycle and started heading downwards. Have you seen the latest June MSU figures? We will have more sea ice this year than last. We are colder than 1988, when Hansen began his scare stories. These are what the whole sorry mess is about and the global warming predictions are now beginning to fail. Given the shortcomings of the computer models, that's not so suprising. You might like to read http://www.john-daly.com/guests/un_ipcc.htm#3 for a short summary of some of these...

  30. Wayland Sothcott

    TV News special

    I think it was ITV who did a series of TV News specials from the poles one year. They went to the Arctic in the summer and showed dramatic footage of ice melting with the comentry "Look the ice is melting, sea levels will rise, were all doomed"

    Then 6 months later they went to the antarctic during it's summer and reported "Look the ice is melting, sea levels will rise, were all doomed".

    The smarter viewers would be aware that this was summer but they did not bother informing the less well informed.

    As for the sea level rising, sea ice melting has no effect as it's already in the sea.

    Whether global warming is real or not, the reporting was deliberately misleading. People who don't have the time to question all of this info will be misled, which means most people. I dunno where all the Reg readers get so much time. It's a pity the main TV and news people did not spend as much time trying to find the truth as they do trying to get a message across.

  31. John Philip
    Thumb Down

    Blatent Misrepresentation

    "As shown in Figure 2-2 from the article, Hansen calculated that both the Arctic and Antarctic would warm by 5-6 degrees Centigrade. His predictions were largely incorrect, as most of Antarctica has cooled and sea ice has rapidly expanded. The evidence does not support the theory."

    Except the whole paper is an examination of what is projected to happen after CO2 levels rise by a factor of two. We're several decades away from that, so how can you possibly claim that Hansen's predictions were wrong?

    In fact the delayed response of the Antarctic is predicted by the models, and averaged overall the continent,inclduing the rapdily warming Antarctic Peninsula the last 40 years show a slight warming. (Bertler et al. 2004)

    "while the Antarctic broke the record for the most sea ice area ever recorded. "

    Nope - the highest since satellite measurements began perhaps but just lookkee at what happened prior to that ...http://tamino.files.wordpress.com/2007/10/shwwzmu.JPG

    Bit of an accuracy-free zone, this one.

    JP.

  32. Mark

    Dodgy Geezer

    "Well, I suppose the most obvious fact would be the published world temperatures. These are now plunging quite sharply, as we seem to have gone over the top of this cycle and started heading downwards."

    So what will the temperature be like in five years?

    How about this year? Will this year be colder than 1998? If it's a cycle, it should be.

  33. Mark

    Re: TV News special

    So, unlike when they crow about how it's not going to be bad? Or "New information means climate change won't be as bad"? They do that too.

  34. Luke Silburn

    Nice Rhetorical Sidestep There

    El Rupester said - "Prove me wrong: give me a fact or two."

    To which Dodgy Geezer replied:

    "Well, I suppose the most obvious fact would be the published world temperatures. These are now plunging quite sharply, as we seem to have gone over the top of this cycle and started heading downwards. Have you seen the latest June MSU figures? We will have more sea ice this year than last. We are colder than 1988, when Hansen began his scare stories."

    And how exactly are these facts germane to the question of whether CO2 in our atmosphere has reached a saturation point for IR absorbtion? Which was the point under discussion after all.

    Your claims of recent cooling are trumped by the multi-decadal warming trend in the observational record. Come back when they show up in the five-year mean and we can talk. Until then they are just a run of below trend observations - probably linked to the moderately strong La Nina that has been in force for the past year or so.

    Saturation as your proposed mechanism for why additional CO2 is having no effect failed at the most preliminary reality check, so please try again. Why isn't the additional CO2 in our atmosphere absorbing the IR as predicted by physics? Or alternatively, where is the absorbed IR energy going if it isn't showing up in the temperature data?

    Regards

    Luke

  35. Dodgy Geezer Silver badge
    Unhappy

    @ TV News special - Wayland Sothcott

    Wayland,

    Indeed, it is deceitful, but I wouldn't read too much into this. It's a bit of 'Drop the Dead Donkey' - cameramen will always go for the best (worst) picture. When the Ice Age scare comes back they'll be taking pictures in deep freezes.

    There have been lots of comments about pathetic seal and polar bear pictures that were faked. The 'Glaciers are melting' stories are invariably illustrated with a picture of ice falling into the sea - these shots only come from glaciers which are INCREASING in length! Glaciers which are melting back do not calve, and so don't present an impressive picture.

    Incidentally, I note that there is a BBC item on the Perito Moreno glacier up at the moment. It says that it breaks up annually in winter and is now doing this in summer, implying that the glacier is shrinking. The Wiki says that the glacier is extending, and breaks up irregularly on about a 4-5 year cycle, when the trapped water gets too deep. Someone is lying, but I trust the Wiki on climate matters about as much as the BeeB. However, if the BBC is wrong, it's pretty blatent. I wonder if there's any point complaining....?

  36. Anonymous Coward
    Stop

    Your taxes at work

    (from this thread):

    "When a thread like this gets really depressing, I just insult the miniscule intelligence displayed. They weren't going to change their mind by persuasion, so insult them. It has two benefits: 1) they don't get the last (wrong) word 2) you get to tell them exactly what they are, which is cathartic"

    - By Mark

    "Stupid twat."

    - By Mark

    "Truly, you have a dizzying intellect."

    - By Mark

    "Maybe the Greeks were partially right, you do seem to be using your brain purely as an organ for cooling the blood..."

    - By Mark

    "Where did you get that "Dr"? Zaire Internet College???"

    - By Mark

    "Joint funding by the Department of the Environment and the UK Meteorological Office has allowed the creation of the Hadley Centre for Climate Prediction..."

    "The Hadley Centre’s work is carried out under contract to the Department for Environment, Food and Rural Affairs and the Government Meteorological Research Programme, with additional funding from the European Commission and others."

    All public funding.

    So Mark is paid to sit at a computer all day and insult people on the web. And we have to pay for it?

  37. Mark

    re: Your taxes at work

    You're unemployed, eh?

    And if you can't kill the message, attack the messenger.

    Pathetic, truly pathetic.

    Where is my employment history on here? Where's Steven Goddards, more to the point?

  38. andy

    @mark

    "unlike when they crow about how it's not going to be bad? Or "New information means climate change won't be as bad"? They do that too."

    They bloody dont. They only care about scaremongering.

  39. Mark

    @andy

    Uh, take a look on this site (a media source) you're reading.

    The BBC, despite having been labelled staunchly pro-AGW has had several statements about how changes were not going to be so bad.

  40. Steven Goddard
    Linux

    Re: John Philips

    There weren't any accurate records of Antarctic sea ice prior to satellites. We are on track to break the record again for most sea ice this year.

    http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/current.anom.south.jpg

    According to NASA, most of Antarctica is cooling while CO2 increases.

    http://earthobservatory.nasa.gov/Newsroom/NewImages/Images/antarctic_temps.AVH1982-2004.jpg

    According to Dr. Hansen and others, most of Arctic warming is due to soot - not CO2.

    Northern hemisphere sea ice area is nearly 1,000,000 km2 greater than last year.

    http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/current.365.jpg

  41. Anonymous Coward
    Anonymous Coward

    @Mark

    "You're unemployed, eh? And if you can't kill the message, attack the messenger. Pathetic, truly pathetic. Where is my employment history on here? Where's Steven Goddards, more to the point?"

    Pot. Kettle. Black.

    So you're not denying spewing insults all day at the taxpayer's expense? I'll take that as a "yes", then.

  42. Mark

    @Anonymous Coward

    Wow, with sucn an incisive mind you must be the belle of the ball.

    Hey, everyone, THIS is the reason why I swear and belittle the mouth-breathing arseholes on El Reg.

    They frigging deserve it!

  43. Mark
    Dead Vulture

    Chicken!!!!

    Bwaark buck buck buck!

    So you're too chicken to come out of the closet AC? Maybe because you're PaulM who has made the same scurrilous accusation. And STILL nothing from Steven Goddard?

    Chickens the lot of you.

    Well, you want categorical:

    I do not and have never worked for DEFRA.

    I am not and have never been a climate scientist (nor, indeed any other sort of scientist) for the Met Office.

    Categorical statement.

    Now, can the californian Steven Goddard tell us who he is? His paranoic delusion about death threats sound very much like Darl McBrides attempt to paint the FOSS crowd as a bunch of dangerous loonies. By lying, I might add. He's a vegetarian and he cycles rather than drives the car where he can.

    And any AC out there had better put their names to the posting. Who knows WHO you work for!

  44. Dodgy Geezer Silver badge
    Heart

    Several responses - find your own!

    "How about this year? Will this year be colder than 1998? If it's a cycle, it should be."

    Umm...Yes it will be. Every year since 1998 has been colder. 1998 was a peak. I think maybe you have your axes confused..?

    "How convenient we are at that saturation point. "Out of all the concentrations in the world, you happen to walk into mine"

    Well, we have to hit it sometime.....

    "And how exactly are these facts germane to the question of whether CO2 in our atmosphere has reached a saturation point for IR absorbtion?"

    Um...I would have thought it was crucial. If the CO2 is still going up, and the temperature is not going up, then increased CO2 CAN'T be having the effect the AGW supporters claim. Saturation is one way they could save their proposal.

    "Your claims of recent cooling are trumped by the multi-decadal warming trend in the observational record. Come back when they show up in the five-year mean and we can talk. Until then they are just a run of below trend observations - probably linked to the moderately strong La Nina that has been in force for the past year or so."

    Well, it's been flat from 2001-2005 and dropping thereafter, so that shouldn't be long. Mind you, that's the longest La Nina I've seen. Perhaps increased CO2 stretches it out?

    "In a word "Venus". If there were saturation at low concentrations of CO2, the temperature there would not be what it is."

    This is a very interesting point to make. Remember, we don't know in detail what is happening in radiative interchange in our own atmosphere, though we can guess that the convective energy interchange via water vapour swamps any effect the CO2 is having. Exactly how the energy balance works is still being studied. And you have some some knowledge of how the Venusian system works? You shouldn't be posting here, quite a few NASA groups would be interested in this data...

    "Saturation as your proposed mechanism for why additional CO2 is having no effect failed at the most preliminary reality check, so please try again."

    Well, it's the commonest one to propose, which was why I gave it. The only other one is that CO2 concentration really does have very little effect. As you know, the effect due to CO2 is small, and so the models propose that this small effect is leveraged by increasing water vapour take-up. If that is not true (and it is an assumption) the whole basis on which 'runaway global warming' is based falls down. I repeat - your problem is that global temperatures are dropping while CO2 is rising. Postulating that CO2 saturation is occurring might save the AGW hypothesis that CO2 really is a dangerous gas which can have an excessive effect (at low concentrations). If you don't accept this, I am not sure how you will explain the temperature plateau and fall, except by ignoring it?

    "Why isn't the additional CO2 in our atmosphere absorbing the IR as predicted by physics? Or alternatively, where is the absorbed IR energy going if it isn't showing up in the temperature data?"

    See above. With the world getting colder it is really up to the AGW supporters to explain where the extra heat they expect is going.

  45. Steven Goddard
    Linux

    Re: Doug and Mark

    If you had read the article a little more carefully before you posted today, you would have seen that it includes the text "The author is not affiliated directly or indirectly with any energy industry, nor does he have any current affiliation with any university."

    I do have an advanced engineering degree and extensive professional experience in several areas of science and engineering. I am not a climate scientist. Most of my work is independent and all is unrelated to the topics I write about for The Register.

    Mark, are you saying that you don't work in any capacity for the Met Office? You made it clear only that you are not a climate scientist.

    We all need to take an approach to life which minimizes our impact on the planet. I take my commitment seriously, and my personal energy usage is quite small - probably 70-80% less than most Europeans and Americans. Likewise, it is equally important to that our decisions are based on accurate information. That is the only way we will ever make good decisions about environmental priorities - based on facts. "Environmental priorities" sounds like a good topic for an article.

    Both of you, if you have specific objections to text in the articles, please articulate them in detail. I'd be happy to discuss and if necessary correct anything specific which is shown to be in error. Personal attacks have no place here, nor do idle speculations about things you know absolutely nothing about.

  46. Steven Goddard
    Linux

    More to Doug Bostrom

    Doug - I found your postings on Real Climate, and again I ask you to ask questions here before making wild accusations on other sites. There are simple answers to your questions

    I posted a response to you on RC - don't know if it will ever get printed but here it is.

    --------------------------------

    # Steven Goddard Says: Your comment is awaiting moderation.

    8 July 2008 at 22:34

    Response to Doug Bostrom -

    First, it is scurrilous to reprint a private E-mail on a public forum without the author’s consent or knowledge. Then to call the other person a “liar” behind their back is quite remarkable behaviour. I have attempted to deal with you in a civil fashion, and you have violated all decorum.

    Besides Doug, you are wrong on all points.

    The first paragraph of the article in the Independent read on June 27 at 15:25 GMT when I took a zotero snapshot - “Exclusive: No ice at the North Pole Polar scientists reveal dramatic new evidence of climate change It seems unthinkable, but for the first time in human history, ice is on course to disappear entirely from the North Pole this year. ”

    They have since changed the text, possibly as a result of my pointing out their inaccuracy. My piece contained the text from the Independent article exactly as it read at the time. A similar article with the same text appeared on Sky News at the same time, which has been removed completely. I have a zotero snapshot of that article as well. Instead of calling me a liar on RC, how about asking me first on The Register Forum where I would expect to see the question? There was a simple explanation - apparently Steve Connor chose to correct his story.

    Also, you are misrepresenting Hansen’s paper.

    In Hansen Nazarenko 2004, Hansen wrote that “Our estimate for the mean soot effect on spectrally integrated albedos in the Arctic … is about one quarter of observed global warming.”

    i.e. Dr. Hansen said that one-fourth of all global warming (over the entire planet) is due to Arctic soot. The same paper shows the forcing of soot as 2XC02 at 4.05 W/m2 Figure 1 shows Arctic warming of as much as 2-3C due to soot. My statement was completely correct - By any reasonable interpretation Hansen did imply that most of the warming in the Arctic is due to soot.

    http://pubs.giss.nasa.gov/docs/2004/2004_Hansen_Nazarenko.pdf

    Also as mentioned in my article, a more recent paper from the University of California says that up to 94% of Arctic warming is due to soot.

    http://www.physorg.com/news100354399.html

    Unlike your incorrect characterization, my article (”Are the ic caps melting”) was about both poles - not just the Arctic. Antarctic ice is completely relevant.

    According to both UIUC and NSIDC, Arctic ice is greater than this date last year. I predicted in the article that the North Pole will not be ice free this summer. Check back in six weeks to see if I am wrong.

    As mentioned in my article, Mark Serreze at NSIDC said in 2000 “There’s nothing to be necessarily alarmed about. There’s been open water at the pole before” During the summer of 2000 there was “a large body of ice-free water about 10 miles long and 3 miles wide near the pole”

    http://query.nytimes.com/gst/fullpage.html?res=9F00E3DD1E31F93AA1575BC0A9669C8B63

    Doug Bostrom - instead of calling me a “liar,” how about engaging in civil conversation as I have attempted to do with you? Hint - you could start with an apology.

  47. Mark

    Re: Several responses

    Well, we'll talk again in 2009 about how cold 2008 was compared with 1998.

    I hope you have ketchup.

  48. Dr Stephen Jones

    @Rupester

    The point is that a hypothesis needs evidence if it is to be taken seriously as a basis for public policy. It must be demonstrably "better" than rival theories. The hypothesis is specifically that the human contribution to CO2 levels is causing dangerous warming. The policy implications are mitigation, adaptation, or a combination of the two.

    My argument is that the hypothesis is "not proven" - and you have a variety of responses to that.

    One is to appeal to a general theory, which is widely accepted.

    "The physics is that CO2 absorbs IR re-radiated from the earth If you have any observations to disprove that, I'd be intrigued..."

    Of course that doesn't advance your case. (Clue: human element missing).

    Another is to say that "warming" doesn't imply "warming". An analog to the rebranding exercise of "Global Warming" to "Climate Change".

    Then, perhaps realising you haven't found the smoking gun, you appeal to emotion:

    "So, if I worry about AGW I have: Basic physics + predictive theory + measured data on imputs + observed (if noisy data) on outputs confirm causaility" => all of which confirm why I ought to be worried. I would describe that as 'a rational response to a quantifiable risk'"

    And I would describe that as a laundry list of reasons to be worried, with the primary reason missing. No one ever calls themselves irrational, but some people are psychologically prone to worry. Some people stay at home on Friday 13th. Others run around unplugging the school WLAN. But there's no basis for policy making there, "eg close schools and workplaces on Friday 13th".

    Ultimately you're arguing that it doesn't need proof at all. In which case why bother at all? Because worrying is theraputic?

  49. John Philip

    More Ice Facts

    "There weren't any accurate records of Antarctic sea ice prior to satellites. We are on track to break the record again for most sea ice this year."

    Hmmm, you'd better inform the Hadley Centre - their dataset has observations dating back to the last century. I refer you to this paper :

    http://hadobs.metoffice.com/hadisst/HadISST_paper.pdf

    and this NASA article

    " ... there was a dramatic loss of Antarctic sea ice cover from 1973 to 1977, and since then the ice has gradually spread in area. The increase has been slow enough that it does not totally wipe out the earlier decreases, said Claire Parkinson, senior researcher at NASA's Goddard Space Flight Center, and a co-author of the paper.

    Overall, from 1972 to 2002, the Antarctic ice declined on average by 150,000 square kilometers per decade. "

    http://earthobservatory.nasa.gov/Newsroom/NasaNews/2003/2003111016173.html

    Or this more recent piece ...

    Isabella Velicogna and John Wahr, both from the University of Colorado, Boulder, conducted the study. They demonstrated for the first time that Antarctica's ice sheet lost a significant amount of mass since the launch of GRACE in 2002. The estimated mass loss was enough to raise global sea level about 1.2 millimeters (0.05 inches) during the survey period; about 13 percent of the overall observed sea level rise for the same period. The researchers found Antarctica's ice sheet decreased by 152 (plus or minus 80) cubic kilometers of ice annually between April 2002 and August 2005.

    http://www.nasa.gov/home/hqnews/2006/mar/HQ_06085_arctic_ice.html

    'Breaking the record' is only newsworthy if the rate of increase is statistically significant. This is true of the Arctic ice extent, currently decreasing at -200 000 km2 or 3% per decade (faster in recent years) but not of Antacrtic ice extent for which the recent rate is +100,000 km2 or just 0.8% per decade.

    "Northern hemisphere sea ice area is nearly 1,000,000 km2 greater than last year."

    Yes, but remember also that 2007 was a record-shattering year for Artic ice extent, some 23% below the previous record ....

    "Arctic sea ice extent for June 2008 is close to that for 2007, which went on to reach the lowest minimum since at least 1979. More notably, however, satellite data indicate that melt began significantly earlier than last year over most of the Arctic Ocean. The large area of the Arctic Ocean covered by first-year ice (described in our June analysis), coupled with the early onset of melting, may mean more rapid and more severe summer ice retreat than last year. "

    http://nsidc.org/arcticseaicenews/

    cheers,

    JP.

  50. NeilT
    Joke

    What a mishmash of half truths

    This is a well crafted piece of disinformation. The real Icing on the cake is the last statement.

    Amundsen did, in fact, finish his navigation the northwest passage (there are 7 of them and he did NOT navigate the main one), in 1905.

    The missing piece of information is that he set out in the summer of 1903 and it took him 2.5 years of jumping between cracks in the shifting ice to get there.

    Last year you could have taken an unstrengthened super tanker down the main channel which has never (in human memory) been open before. Just a little different.

    Most of the channels of the NW passage were discovered by foot and dogsled over the Ice.

    The Arctic ice began 1M SQ KM in extent higher than 2007. By mid June it had equalled 2007. Now it is about half a million sq km above 2007 as it has entered the traditional warming period for this time of year. However this is a much cooler year than 2007 (to date) yet the melt extent already exceeds 2007 by half a million sq km. Remember that it bean 1M higher and is now only 1/2 million higher.

    In the last two days circa 250,000 sq km of ice just vanished. Leaving a triangle of melting ice pointing right into the North Pole.

    http://iup.physik.uni-bremen.de:8084/amsr/arctic_AMSRE_nic.png

    Oh yes, they were not talking about a few miles of open water at the pole. They were talking half a million sq km of open water. Your picture of a submarine would not have been possible because you would have needed a helicopter or another sub to take it as the whole area around it and way, way over the horizon would be open water.

    I really hate it when someone who knows nothing about this cherry picks the sicence they wish to believe and then paints a completely false picture.

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