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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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Comments 100001 to 100050:

  1. It's cooling
    In any case, the topic of this is "is global warming still happening", and the answer to that is a resounding yes. Discussion of the reliability of an OHC graph are quite off-topic.
  2. It's cooling
    @BP: why does your graph stop in 2005? I'm sorry, but you have yet to make a convincing case against the graph. The fact that results are surprising doesn't mean they are impossible. In fact, considering the limits of the survey (0 to 2000 meters), it is quite possible part of the extra heat was released from below. It seems to me the main reason you are dismissing this graph is that it disagrees with your own (non-peer-reviewed) theories. "I said UAH satellite lower troposphere data showed a (moderate) warming trend. That's not the same as "the planet is warming", is it?" All temperatures show pretty much the same warming trend, and it is not moderate by any reasonable standard. Of course, when your goal is to minimize the risk and stall the debate, everything goes, right?
  3. The many lines of evidence for global warming in a single graphic
    Just a small quibble -- it makes more sense to talk about species expanding or shifting their ranges towards the poles, or into cooler regions. The term migration properly refers to a regular seasonal movement, that has always been poleward in the spring, for most species.
  4. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    @JMurphy: "Perhaps it is linked to a report I read about recently, which seems to suggest that people of a certain (right-wing) perspective had a "more pronounced amygdala – a primitive part of the brain associated with emotion..." This is off-topic, but the study was more precise in stating the amygdala is mostly responsible for fear (not just emotions in general). One thing's for sure, it certainly seem to affect scientific understanding...
  5. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    @Argus: "I definitely see more purple than red, and more blue than orange." Well, argusbargus, your eyes are decieving you. You're probably comparing light purple with red, but you should rather compare it with orange. Similarly, you should be comparing blue with green. To stay on-topic, there is absolutely no indication that global warming has stopped, or even slowed down. It's still going on, but that won't stop contrarians from repeating the same debunked arguments, it seems.
  6. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    @BP: why pick a single day, Berényi? You know, cherry-picking is a sign of intellectual weakness or dishonesty. Your claim that the extra heat has "nowhere to go but outer space" is also incorrect. The radiated IR from the surface (it radiates IR, even if it is below zero) will still be intercepted by CO2 molecules, which will then re-radiate it. Seriously, you used to at least have the pretense of knowing what you were talking about, but now it's just sad.
  7. Climate sensitivity is low
    @BP: I'm sorry, BP, but you're just throwing numbers around and hiding behind formulas. If you really understood the science, you'd be able to explain it simply. You might also try to explain why your (purposefully confusing) argument does not agree with actual observations. If you want to go and play the savant, why don't you write an actual scientific article and have it peer-reviewed. After all, since you're apparently able to disprove AGW theory is an important scientific discovery. The fact you haven't is a good indication you don't really believe your theory is exact, but are in fact only trying to further obfuscate the debate.
  8. Berényi Péter at 02:24 AM on 31 December 2010
    Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    #66 michael sweet at 01:56 AM on 31 December, 2010 On the graph at #48, notice that there is a lot of red +10C and very little violet -10C. Those "red hot" areas (Greenland, North-Eastern Canada, Chukchi peninsula, Kamchatka) are still well below 0°C (or rather -10°C, which is still "hot" compared to their usual temperature for the season). It means the extra heat from there can not go anywhere but to an even colder heat reservoir, which is outer space. This is how the planet is cooling itself.
  9. The Scientific Guide to Global Warming Skepticism
    Paul Barry, this chart http://i46.tinypic.com/2vja1z5.png shows how El Nino depletes the tropical pacific ocean heat and La Nina recharges it. What is notable is that each strong La Nina recharge seems to provide a "step up" in tropical pacific heat content. Also it is not hard to imagine that as the heat of each El Nino gets spread around the world, the other oceans store some of that heat in the following year or two. That chart came from this page by skeptic Bob Tisdale http://bobtisdale.blogspot.com/2010/02/la-nina-underappreciated-portion-of.html Some of his work has been criticized here before, but that chart is just data.
  10. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    Argus, We will have to wait for the GISS report at the start of January for quantitative data. On the graph at #48, notice that there is a lot of red +10C and very little violet -10C. The red in Greenland corresponds well to the purple in Siberia so the latitude makes little difference. Eyeballing a graph like this has a lot of subjective error, we will see who did better next week when the quantitative data comes out.
  11. A Positive Outlook For Clouds
    I’ve often seen Gavin at RC state that each W/m² equates to about 0.75ºC increase in temperature. I used his number above although it looks to me when I apply the equations that 0.75ºC per W/m² actually equates to a climate sensitivity of 2.78ºC per doubling of CO2 while 0.81ºC per W/m² gives a climate sensitivity of exactly 3ºC. I’m not sure how he arrived at 0.75ºC instead for 3ºC, I just use it. I’ve never seen averages applied in the way Ken Lambert suggests. See The CO2 Problem in 6 Easy Steps at RC. Also see RC comment # 46 by Chris Colose at Some Examples Worked
  12. A Positive Outlook For Clouds
    The simplistic calculations of climate sensitivity discussed here need to consider that the ocean causes a significant lag in the observed temperature increase. Other threads on Skeptical Science describe this lag as 40 years and more. Thus the 0.8C that we have already measured is due to the CO2 released decades ago. The increase from the last 40 or 60 ppm of CO2 has not yet been seen. The skeptics need to think about their simplistic arguments that "it isn't that scary" and consider that we have not seen the full warming yet. The skeptic argument has shifted from "it is not warming" to "the warming is not so bad". The scientific position has not changed. Tell the 20 million people who were flooded out of their homes in Pakistan this year that "it isn't that scary" and see what they say.
  13. Berényi Péter at 01:33 AM on 31 December 2010
    It's cooling
    #95 Albatross at 10:43 AM on 30 December, 2010 And the 0-2000 m OHC decreased by that about amount in two months in early 2006. Yet, the long-term trend is up my friend. Funny you don't see it's impossible. One needs a 15 W/m2 radiative imbalance at TOA for two months to produce such wriggles. That's more than 6% of ASR (Absorbed Shortwave Radiation). You could say the Earth was at its perihelion in early 2007. But it makes the drop a year before even more suspicious. Either - or. There's simply no heat reservoir in the climate system other than the oceans that could emit or absorb so much heat. The two events, taken together, require imbalances of some 30 W/m2 on such timescales. Can you see anything like that in the ISCCP-FD Net TOA Radiative Fluxes? An OHC history reconstruction showing impossible features is not the best candidate for estimating trends. Also, please make up your mind. Earlier on this thread you correctly stated that the planet is warming and that TCR is about 2 C I said UAH satellite lower troposphere data showed a (moderate) warming trend. That's not the same as "the planet is warming", is it? And I was not talking about TCR (Transient Climate Response), but equilibrium climate sensitivity and said it was at most 2°C, probably considerably less. Other than that, well done, you've quoted me correctly.
  14. The many lines of evidence for global warming in a single graphic
    Terrific graphic. I think your graphics that summarize the AGW arguments so well are great resources. They can be shown to skeptics all at once. That makes it so much harder for the skeptics to focus on one thing, they have to anslwer them all at once. John: is it worth adding pH increase in the ocean? That is not a result of warming, but it is one of the major problems caused by increasing CO2. TOP: how could you possibly use this graphic to sugggest non-AGW? These are all results predicted 20 years ago in James Hansens' testimony in congress. The skeptics said it would never happen. Unsupported trash talk like your comment is so lame. Are you just demonstrating how bankrupt the skeptic argument is?
  15. The Scientific Guide to Global Warming Skepticism
    Rob @ 53 Thanks for those points. I see that it is complicated. On the one hand warming of ocean decreases its ability to dissolve CO2. On the other hand increasing CO2 in atmosphere increases the ocean's "ability" to store CO2. The question arises then about the relative scale of each of these affects to determine which one over-rides the other - when and where. And I'm still having trouble imagining the acidity problem against this complex background and I still don't know if I feel confident telling people that warming releases CO2 from oceans (overall). Perhaps it's a timing thing. This is probably not the place for explaining all of this stuff. If anyone knows a particular site or source where all of this is well explained or more suited to these kinds of questions, please let me know.
  16. The many lines of evidence for global warming in a single graphic
    Could also include that stratospheric temperatures are decreasing too
  17. A Positive Outlook For Clouds
    Soundoff #19 I have a bit of a problem with this unit degC per W/sq.m, which is used to measure climate sensitivity. To raise the temperature of a mass you input energy measured in Joules. eg. the specific heat of dirt, water etc is expressed in Joules/gram or kJ/kG. A Watt is an instantaneous applied power or energy flux and to get energy applied you have to multiply by time. ie. a Joule is a Watt-sec. Soundoff's use of the IPCC log equation to calc forcing 'relative to 1975' gives the instantaneous forcing increase for today (2010) at 0.894W/sq.m. That only applies today and not 5, 10, 15, 20 years ago when the CO2 conc was somewhere between 330 and 390 ppmv. To get a temperature increase of 0.65 degC, the increased energy applied would be an 'average' forcing in W/sq.m multiplied by 36 years. That average forcing would be roughly half the 0.894W/sq.m increase (the ln function is non-linear so the half is not exact). That would give a 0.65 degC increase based on roughly half the forcing increase which doubles the 'climate sensitivity' to roughly 1.5degC per W/sq.m (or 6degC per doubling)to be consistent with Soundoff's sum. Not amazingly close at all. All the other forcings need be taken into account to determine the net forcing imbalance (with S-B cooling and CO2-WV feedbacks playing a vital role)
  18. A Positive Outlook For Clouds
    #19 – Errata – Last sentence's qualifier should have been: “... given that the other positive and negative forcings more-or-less cancel each other out.”
  19. It's Pacific Decadal Oscillation
    Moderator Thank you for the information regarding questionable integrity of the surface temperature records. I hope we agree that the plot presented in post #39 is misleading. Climate is complicated and the PDO is only one piece of the ever-changing puzzle. Maybe the global trend will continue to rise after this pause, maybe it will go down. Based on the evidence, I don't think that we know for sure either way but pre-cursor indicators suggest that we may be headed into another period of cooling similar to the 60's and 70's. When I took advanced meteorology classes in 1981 the consensus was that we may be entering into another ice-age. We learned about "instantaneous glaciation" and the possibility of a near global ice-over within 1,000 years. That was my experience, that was what I was taught. Can you blame me for being skeptical about CO2 induced climate disruption? Yes, I'm skeptical but I'm not a denier. I visited the Holocaust Museum in Washington, DC. To label a skeptical scientist a denier is insulting. Stick to the scientific method, stay objective, don't give in to personal bias, that leads to the dark side.
    Moderator Response: [Daniel Bailey] Please furnish us with your rationale for your subjective assessment of the graph in post 39. Use the search function in the upper left corner of this page to find posts discussing planetary cooling and imminent ice ages memes. Lastly, there exists a considerable difference between being skeptical (which necessarily must include being skeptical of contrarian claims) and being a "skeptic". Approaches which seek to use the most possible data to develop an explanation that best explains as much as possible which then survive peer-review are the ones that develop over time into a consensus. Please avoid assigning other bias' like 'dark side' to things. Politics and agendas cause one to quickly run afoul of the Comments Policy. Thanks for your understanding.
  20. The many lines of evidence for global warming in a single graphic
    Makes a good case for non-AGW too.
    Response: The 'Indicators of Warming World' graphic is to establish that warming is happening. It doesn't speak at all to the cause of the warming - that is coming in an upcoming post (although you can get a good idea of what it will say in the Scientific Guide to Global Warming Skepticism which features an update of this old blog post).

    Sadly, there are still many people who still deny global warming is happening. All it takes is a snow storm somewhere for the knee-jerk reaction "aha, global warming has stopped". But if you're able to take a step back, peruse all the evidence for a warming world and acknowledge that yes, the planet is building up heat and warming, then all credit to you.
  21. The many lines of evidence for global warming in a single graphic
    If you put all the arrows in white, then the reader can go from one to another without being distracted, and can "comfortably" make their own judgment about each one, without any one of them standing out more than the others. Someone who is new to this might find it easier to assimilate.
  22. The many lines of evidence for global warming in a single graphic
    Just a thought. It would say more to me if the springtime coming earlier had an arrow pointing to the left. And I am not sure what to think about the black arrows. I know all the down arrows are in black, but that really doesn't say a lot to me, because whichever direction you point these arrows, they are all bad, and white vs. black is generally assumed to be good vs. bad.
  23. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    It would appear that the so-called skeptics have a difficulty with perception, which is why they always highlight cold temperatures and are seemingly blissfully unaware of the far more regular record warm temperatures. I don't know how this can be combatted except by constant reiteration of the facts so that at least those who are reading these threads can see the unusual nature of so-called skepticism. In this vein, someone posted a link previously to Jeff Masters at Wunderground and that led me to another of his posts, which mentions two papers (Houston and Changnon (2009) and Changnon et al. (2006)), showing no trend in heavy snowfalls in one study but another showing heavier snowfalls likely to occur in a warmer world. Now, to a so-called skeptic this probably doesn't compute. How can the world warm and yet snowfall be heavier ? It would be the same to a Creationist who cannot understand how the perfection of an eye can have been developed from random mutations and 'trial and error'. To everyone else, reading all the facts makes such things clearer. It's also worth trying to think beyond what a so-called skeptic would call his (let's face it, the vast majority of them are male) world - what he can see out of his window and what he has experienced personally. Doing this will allow one to look at the heavy precipitation as snow in the Northern Hemisphere and the heavy precipitation as rain in the Southern Hemisphere. Are they linked in some way ? Is this more evidence of the increase in precipitation predicted as the world warms ? It also allows you to understand why it can be very cold around your own locale, while the world as a whole is warmer than average. As I say, it's very difficult to persuade any so-called skeptic who is set in his ways and who cannot think outside his own boundaries. Perhaps it is linked to a report I read about recently, which seems to suggest that people of a certain (right-wing) perspective had a "more pronounced amygdala – a primitive part of the brain associated with emotion...". No comment.
  24. We're heading into an ice age
    @kfdv #190 Are you aware this is all written, aren't you? What do you suppose students will think about when they analyze your answer to #188 ?
  25. Stratospheric Cooling and Tropospheric Warming - Revised
    @RSVP #96 Thank you, thank you, thank you! " ... AND the receiver!" This will be commented for ages.
  26. Climate sensitivity is low
    Berényi Péter wrote : "So much about nonsense." At last : something you have written which all can agree with ! I just wish you would heed your own words... PS Have you read the Advanced Version of this topic ? It may help.
  27. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    #46, #47, #48, Thanks for the links. I will check in there regularly. However, I don't know how your (=m. sweet #48) eyeballing works, but I definitely see more purple than red, and more blue than orange. (Especially in the polar view, where the cylindrical overrepresentation of the red spot in northernmost Canada/Greenland is reduced.)
  28. Berényi Péter at 20:33 PM on 30 December 2010
    Climate sensitivity is low
    #70 archiesteel at 14:03 PM on 30 December, 2010 That's nonsense: a delay will in effect raise the temperature of the system, as the sun continues to send energy. Listen, you either know how a linear time-invariant filter works or not. In the latter case you'd better have a look at convolution integrals. If g(t) = ft and h(t) = (β/τ)e-t/τ, then g*h(t) = βf(t-τ). It is a fact, no amount of babbling about the sun would change that. It is also equal to βft-βfτ. If climate sensitivity is positive (β > 0) and there is an increasing forcing (f > 0), the additive constant -βfτ is surely negative. Therefore the delay would not increase the temperature, but it would decrease it, while the trend itself (temporal derivative of temperature, βf) is clearly independent of said delay. So much about nonsense. (You could also work on your physics. There is a difference between temperature and heat.)
  29. A Positive Outlook For Clouds
    Quick note - I've added the 'Examples of Cloud Feedback' graphic to the list of high-rez climate graphics.
  30. The many lines of evidence for global warming in a single graphic
    Nice graph, useful in presentations indeed. May be it should be 'mixed' with the fingerprint graph http://www.skepticalscience.com/its-not-us.htm in order to obtain a comprehensive overview of observations and fingerprints. One could tell the whole story on the basis of one graph only! Jan Paul van Soest
    Moderator Response: [Daniel Bailey] Changed link to hyperlink.
  31. We're heading into an ice age
    #195 . WRONG !!! the satelites together with earth should form one system that it should be moved together in the apply of gravitational forces due to planetary realligment , yet the sun stays steady ....
    Moderator Response: [Daniel Bailey] Again, please provide linked references for those claims (published, peer-reviewed sources have the most credibility). Extraordinary claims must of necessity be accompanied by an extraordinary evidenciary chain. Unsupported comments such as yours will be simply deleted in the future. Thanks!
  32. Back from the Dead: Lost Open Mind Posts
    Added Central England Temperature, April 28, 2008. Guess there's still more out there. The Yooper
  33. We're heading into an ice age
    Henry @198, I'm afraid you have been hoodwinked by some folks who, on the surface, seem to make a compelling case. Research has shown that even if we do enter another Maunder-like minimum, or even a grand minimum, the radiative forcing from elevated GHGs will easily overpower the reduced incoming solar radiation. See this thread for details.
  34. A Positive Outlook For Clouds
    I’m not sure if the following reasoning holds for all periods due to other factors that influence climate at different times, but I thought it would be fun to try with our modern period of warming, 1975 to present, to see if climate sensitivity agrees with expectations. Average annual temperatures have increased 0.69ºC since 1975 per GISTemp (-0.04ºC then versus +0.65ºC now). CO2 was 330 ppm in 1975. It’s 390 ppm today. Plugging those two CO2 levels into the standard CO2 radiation forcing formula ΔRF = 5.35 ln(CO2/CO2_orig) gives a increased forcing of 0.894 W/m² since 1975. Applying a climate sensitivity of 3ºC per doubling of CO2 concentration (or 0.75ºC per W/m²) gives an expected temperature increase of 0.67ºC. That’s amazingly close, I’d say. Close enough that you can certainly be confident of the relationship between CO2 and temperature over the last 36 years given that the other positive and negative feedbacks more-or-less cancel each other out.
  35. How much did aerosols contribute to mid-20th century cooling?
    Re: Gail Thanks for the video link (nice site, BTW; I've read your posts on the issues with the trees...I see much the same patterns here in the Midwest). Cox is spot-on in regards to the protective effects (thus far) of the global dimming the video documents. This post covers that fairly well. Thus, as we clean up our emissions and therefore the air, we restore more fully the true heating capability of the sun, masked to some degree for decades. Add in a wakening sun (coming out of its dormancy as it climbs to the next solar maximum... As to your last question, no. Arctic amplification of the high latitudes is the primary driver here. Romm over at Climate Progress touches on it in posts here, here and here as well (see also this related post). Basically, the warming of the Arctic, shifting of the polar jet and the expansion of the Hadley cells has reached the point where the entire circulation patterns of the northern hemisphere are being reorganized. The world we were born into will not resemble the world we will leave behind. But everything's hunky-dory as long as the Bills don't win the Super Bowl*... *OK, wasted a lot of time looking for a vid on that so hear's the quote:
    Smoking Man: "What I don't want to see is the Bills winning the Super Bowl. As long as I'm alive that doesn't happen." Third Man In Black: "Could be tough, sir. Buffalo wants it bad." Smoking Man: "So did the Soviets in 80." Third Man In Black: "What? You saying you rigged the Olympic hockey game?" Smoking Man: "What's the matter? Don't you believe in miracles?" Fourth Man In Black: "The boss gave the Russian goal tender a little pre-game good luck pat on the back. Unseen novacaine needle on a bogus wedding ring. Goalie's a little slow on the stick side, 4-3 home team." Smoking Man: "Payback's a bitch, Ivan."
    Smoke 'em if ya gots 'em... The Yooper
  36. We're heading into an ice age
    Henry Justice - " In Greenland, eight WW2 bombers from the "lost squadron" were found in 1986 under 267 feet of ice. How's that for melting glaciers? I didn't take the rest of the article seriously." Yeah, heard that one before. And the one about the research station being buried under many feet of snow, and having to be dug out. Please note that the center of the Greenland Ice sheet is at high elevation, is very cold and is still accumulating ice. The coastal regions where the glaciers meet the sea, are not, and are rapidly melting. The loss of ice at the coast far exceeds the gain from snowfall at high elevation, this is why the Greenland ice sheet is losing many billion of tonnes of ice every year.
  37. Back from the Dead: Lost Open Mind Posts
    Thanks for doing this Daniel, very much appreciated.
  38. We're heading into an ice age
    Henry Justice @198 - "Also, I checked the worlds annual mean temperature charts. Not much of a visual upward slant in temperatures everywhere I looked world wide for the last 50 years. The urban site temps were not used as they are unreliable. So upward and downward wiggles appear all but natural variations. Look for yourself and you be the judge!" Okay. Comparing all the temperature records Henry, the three surface temperature records and both satellite records all show warming. Where have you been looking?.
  39. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    Archiesteel: @ghornerhb: I counted at least twelve logical fallacies and outright fabrications in your post. Please stop posted well-debunked junk science and unfounded accusations, thanks! It'd be nice if one of our resident "skeptics" took the time to debunk the obvious falsehoods in comments like ghornerhb's, for a change. Y'know, just to demonstrate that they have a fundamental respect for science and rationality. I've never seen that happen, as far as I can recall.
  40. It's not bad
    #95: "it would be helpful if you understood my position ..." Considering that you started here with buzzwords like 'catastrophic' and 'hysteria', you haven't exactly made your position clear. Nor have you provided any evidence to support that position.
  41. Climate sensitivity is low
    #67: "Therefore my calculation is correct," Since no new information other than a transfer function was involved, what exactly did you calculate? And given that you started with "Well, let's suppose there is ... ", even that is cast in some doubt by your own presentation. A sensitivity calculation that does not match the observed changes in temperature isn't worth much. But you'll likely deny those observations as well. So the only logical result of this latest exposition is that there's some grand unknown force operating beyond our ability to influence or even measure. A fine science, that, as it is ultimately not falsifiable. But the truth is out there ... .
  42. It's not bad
    @Nederland: why bring hyperbole up, then? Again, the science is quite sound - climate sensitivity is very likely to be within the 2.5-4.5C range. If you don't believe this, then you have to provide concrete, peer-reviewed evidence to the contrary.
  43. It's not bad
    #94: Considering that hyperbole is enough to convince you of the invalidity of a theory I never said that hyperbole was enough to convince me of the invalidity of a theory. In fact, I never said that I that AGW theory was invalid. I think it would be helpful if you understood my position before posting.
  44. Lindzen and Choi find low climate sensitivity
    When the trend is more important than the value, precision is more important than accuracy. High accuracy with low precision can lose the trend in the measurement noise. The trend is more important than the absolute value when determining climate sensitivity. Academic inertia is countered with new, independently validated, empirical observations and/or new explanations that better describe the observations not conspiracy notions.
  45. We're heading into an ice age
    @Henry: too bad your theory isn's supported by observation, which means it's likely bunk. Oh, and you don't get to choose which temperature records you want to use, and which ones you don't. That's called cherry-picking, and though it might be the contrarian's favorite activity, it doesn't hold much weight in a scientific discussion. The "2012online" site is a joke, while your last link is to a gmail message. Fail. Simply put, there is no indication that a new ice age is emerging. You should spend less time on pseudoscience site and more time reading the articles here. You'll learn a lot.
  46. We're heading into an ice age
    Henry, Try reading the entry you are replying to, including the intermediate version. The increased heat retention from the enhanced greenhouse effect is an order of magnitude larger than the decreased heat from a return to Maunder minimum levels of solar activity. As for "urban records are unreliable", refer to argument #6 which is linked at the top of the left column.
  47. It's not bad
    @Nederland: there is plenty of hyperbole on the denier side, with accusations of planned genocide and conspiracy theories involving a secret cabal of scientists and world government, etc. Considering that hyperbole is enough to convince you of the invalidity of a theory, will the blatant and repeated examples on the denier side turn you off of their position as well? In any case, hyperbole in itself is not a logical fallacy, neither are ad hominem if you don't use them in order to attack someone's credibility. The sentence "2+2=4, you arse!" may be uncouth and rude, but it's mathematically correct...
  48. Climate sensitivity is low
    @BP: "That is, the time constant τ has no effect other than introducing a delay in this case - or an additive constant, if we look at it the other way around. It has no influence on the trend whatsoever." That's nonsense: a delay will in effect raise the temperature of the system, as the sun continues to send energy. Like RW1 and co2isnotevil in another thread, you seem to forget this is a dynamic system, and that power input is constant.
  49. We're heading into an ice age
    The historical record indicates that we are now in a repeat Dalton like minimum (called Landscheidt). This is expected to last through solar cycle 25. However, around 2015 or so, its expected that the solar gauss will fall below 1500. Then the sunspots may wink out completely. It is further predicted that a new Maunder like minimum will then begin. So, global cooling has, in fact,begun and will last most likely for the next 70 or 80 years. See this site: http://www.landscheidt.info/?q=node/61 Also, I checked the worlds annual mean temperature charts. Not much of a visual upward slant in temperatures everywhere I looked world wide for the last 50 years. The urban site temps were not used as they are unreliable. So upward and downward wiggles appear all but natural variations. Look for yourself and you be the judge! See this site:http://www.john-daly.com/stations/stations.html In Greenland, eight WW2 bombers from the "lost squadron" were found in 1986 under 267 feet of ice. How's that for melting glaciers? I didn't take the rest of the article seriously. See this site: http://www.2012online.org/2012research/iceage/ For the new little ice age that's emerging now: see this site: mail.google.com/mail/hl=en&shva=1#inbox/12d1de941be48ea3
  50. Did Global Warming stop in 1998, 1995, 2002, 2007, 2010?
    @ghornerhb: I counted at least twelve logical fallacies and outright fabrications in your post. Please stop posted well-debunked junk science and unfounded accusations, thanks!

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