Climate Data Re-examined (updated)
An anonymous reader writes "An important paper that re-examines historical climate data was published on 28 October in the respected journal Energy & Environment. (The paper is also available here.) According to an article in Canada's National Post, the paper shows that a "pillar of the Kyoto Accord is based on false calculations, incorrect data and an overtly biased selection of climate records." (USA Today also has a story.) This paper will undoubtedly be controversial and should stir a vigourous data review." Update: 11/05 14:54 GMT by T : newyhouse points out a similarly contrarian 2001 Economist article by Bjorn Lomborg, author of The Skeptical Environmentalist .
The poblem with most of these policies is they put rules in place on 3rd world countries that can't afford to put in technology to fix the problems they have, then they sell of thier clean air units to other countries to make cash.
basically it works like this. every country has to make quotas. but the stupid thing is you can TRADE them. Lets say the US it polluting too much, it can buy "clean air quotas" from another country who doesn't pollute as much. It's kinda interesting but lame at the same time.
agreed, polluting is bad, but making huge policy changes and other expensive modifications without probable cause is also bad. I don't want to make changes because of some bad data, I want to make changes to better the planet. Not to advert some mythical killing of the planet which some said would happen at the "alarming rate" at which our temp was rising.
We shouldn't stop protecting the environment just because some analysis was wrong. Its funny that we even need justification in the first place to preserve the planet.
Moderation Totals: Flamebait=2, Troll=1, Redundant=1, Insightful=6, Overrated=1, Underrated=1, Total=12. (not mine)
You're comparing filling a very small space with a very toxic poison to putting a tiny bit of pollution into a very vast atmosphere.
The analogy doesn't even come close to being correct.
The temperature is rising in an alarming rate....
Current earth models predict that at this rate around 2050 there will be a critical point reached where the greenhouse sink holes will break down and become greenhouse sources (breakdown of the amazon rain forest and far worse the release of methanhydrates from the ocean floor). At that point the process will accelerate itself and climate will change drasticly.
What this study shows is that it might not be man's fault but have a natural cause.
Fact remains that our current behaviour is driving this in some degree. It might be the main force or completly negligable. It might be the last little push to disaster.
Jeroen
Secure messaging: http://quickmsg.vreeken.net/
The "hockey stick" graph has been roundly criticized for years -- and yes, legitimate scientists criticize it, not just "neo-cons" or whatever.
Unfortunately there is immense political pressure placed upon anyone who says something that could be seen as weakening the Kyoto protocol or the "global climate consensus." I expect the authors of this paper will see quite a lot of heat about this.
This is a shame, because the fact that the "hockey stick" graph is flawed absolutely does not imply that human-influenced global warming isn't a problem! Sure, people may misuse these results to argue that global warming is somehow disproven, but the potential misuse of a result is no reason to suppress it. On the contrary, pressuring people to keep quiet about their findings will only hurt the credibility of the entire field in the long run. So it is very good to see that this is published.
And remember -- there is no "final word" in science. The most vital element of science is results can be tested and disproven. Nothing is above criticism, including the hockey stick graph, this paper, and any other paper written about climate change or any other scientific subject. That is what science is all about.
I wonder if the results are skewed because of mistakes, or if the numbers have been wilfully embellished. Neither would surprise me: almost every lobby group for every side of every issue, from Greenpeace to the car industry lobby, have been known to juggle the books a little in order to support their own beliefs. In some cases, outright fraud has taken place.
What scared me about Kyoto is not so much the conclusion that was drawn, nor the way scientists had arrived at that conclusion, but the zealous belief of many governments in these conclusions. In Europe, scientists or governments (the US) who were sceptical about the Kyoto paper became the brunt of scorn and vilification in the media. It again showed how deeply environmentalists have become entrenched in the decision-making bodies of government... it reminds me of the case where two scientists were fired from the Dutch government environmental agency, for publishing reports that proved the official line on acid rain was wrong.
The reactions to this article will tell us if the political climate has changed... if the policy-makers are still only accepting opinions that fit their own world view, or if we have a more open climate where scientific discussion rather than dogma holds sway.
If construction was anything like programming, an incorrectly fitted lock would bring down the entire building...
You may be interested to know that the Earth was warmer over the vast majority of its history.
CO2 levels are, over the long term, in decline. This has, among other things, resulted in the evolution of grasses, which are far more efficent with their use of CO2, than their predicessors.
We are at the serendipitious end of an ice age, it's stupid of us, with our short life spans, to assume the world was and should always be thus. It is the hieght of conciet for us to always expect it to be so.
First man thought the universe was immutable, and earth was at the exact center. Then we came to know that not only was it not at the center, neither was our solar system, or galaxy, and there wasn't really a center to speak of in any case. Now we just expect the Earth's enviroment to convienently, and indefinately hover at we have come to consider an ideal. Seriously, it's time we got over ourselves as a species.
You might be interested to know, that the raw data is considerable, for the most part not normalized, and if Joe Six pack has a beowulf cluster of supercomputers available to federate and interperate the data they would. But since the aliens only delivered supertechnology and not magic when they crashed we'll just have to make do with faking moon landings and tinfoil hats.
So: terrible catastrophes causing trillions of dollars in damage and hundreds of millions of deaths may be averted, and this is "a Bad Thing?"
Gee, thanks Zog.
Taking this referenced paper as being on the mark, do look at their corrected temperature graph. One can't say that the recent warming has been unprecedented based on that graph, but you could claim that there's been nothing like it in 500 years.
...) as a good reason to dispute the need for CO2 emission controls. Yet they would still (IMO) be misguided. As evidenced by the hole in the ozone layer, human industrial activity can have significant long-term effects on the global environment. Given that we only have the one planet, it seems only good sense that we should be cautious when it comes to activity that has the potential to seriously change the environment.
It seems almost certain that this news will be welcomed by certain governments (US, Australia,
The warming trend in the last 100 years may have very little to do with industrial emissions - but as yet we can't tell. That there is a correlation indicates we should err on the side of caution: if it is indeed a matter of causation, then we're essential pissing on our own future.
Regardless of quality of life issues, it makes sense as an economic one, when viewed in global terms. We will have to deal with the effects of climate change whether it be due to human activity or not, but if there is a significant component that we're responsible for, continuing in this behaviour is going to make a very large problem a great deal worse, with attendant very high costs to amerliorate it. It is risk management. Putting heads in the sand and saying that there's doubt about the link, does not make the risk of that link magically disappear. Even a 5% chance of the link being actual may be sufficient for a purely economic assessment to indicate that emissions should be sharply curbed.
If there were alternative policies being adopted by those governments against the Kyoto accords, then that would be an indication that their objections were based on more than short-term economic growth (or worse, given the somewhat incestuous relationships between governments and industry.) Yet Australia for example has not even managed to reduce its rate of growth of emissions (not the emission levels themselves!) to targets that had been set earlier.
If the Kyoto accords are not a step in the right direction, then the continuing increase of CO2 emissions is certainly not a preferable alternative.
A recent study by Arctic researchers showed that the polar ice cap isn't just shrinking in terms of land mass, it's shrinking in terms of depth too, by 4cm a year.
All that water's going somewhere, and that somewhere is the oceans. Global sea levels are rising, and you only have to look at the situation in Tuvalu in the Pacific or Venice, Italy to see that the threat of rising tides isn't a myth.
People can harp on about "not enough data" or "inconclusive evidence" all they want but if entire nations vanishing beneath the waves or historic cities sinking isn't a wake-up call then I don't know what is.
Frankly, there are some people who will bury their heads in the sand over this issue just as long as they can make a profit by ignoring it. Oil companies and big business are never going to recognise that they are part of the problem until the last possible moment, at which time they'll just shrug their shoulders and say "Who knew?", just like the tobacco industry before them.
But, unlike tobacco, this isn't a problem that will affect just a handful of people, or a problem that will be easily settled by the courts - billions in punitive damages are useless when your country is underwater. The last time I checked there wasn't a court on the planet that could push back the tides.
I'm sure there are dozens of readers out there that will right off this comment as yet more half-baked environmental doom-mongering but I find it funny that these same people will demand more money to scan the heavens for deadly meteors - it seems that extinction Armageddon-style is trendy but the possibility of extinction because of our own actions just isn't sexy enough.
If you really want to be objective about these issues try to look beyond the smoke and mirrors. Ask yourself how objective the research is - there are far more people out there funded by big business than you'd imagine. Ask yourself who stands to profit by presenting a negative picture of climate change? Who stands to lose if the problem is tackled head-on? And who stands to profit if it's ignored and the situation is allowed to continue unchecked?
"Accept that some days you are the pigeon, and some days you are the statue." - David Brent, Wernham Hogg
1. Who are these guys. There are no affiliations listed and the research sponsor is not listed.
Who they are should be fairly irrelevant. The important question is: are they right?
2. MBH98 is not the only paper. It was one of the first ones. After that more detailed research was done and it did not refute any of the claims.
Can you give references?
3. Is the ice melt in the arctic a figment of my imagination?
The ice may well be melting. The question is why. This paper would seem to suggest that its not because temperatures are higher than we have ever seen before. Did the ice melt in the 1400s? If not, we have a very interesting conundrum.
4. Is the retreat of South American Glaciers a figment of my imagination?
see answer to previous question
5. Why doesn't NOAA put all the data for public consumption so that anyone can see who is right and who is wrong?
Indeed. It would help everyone.
This paper seems to be of a high quality: it references correctly, it explains what its doing, it limits its conclusions to the data and the results obtained. If you want to criticise it then criticise the science.
This is irrelevent anyway. Unless it says that continuing to exploit non-renewable energy at the current rate (or faster) and emitting carbon dioxide at the current rate is actually good for the environment.
People need to look at the big picture and stop arguing over the small print.
"XML is like violence. If it doesn't solve your problem, use more." - Anonymous Coward
When a man is wrong and won't admit it, he always gets angry. ~ Thomas Haliburton
I have found many people will get angry when you say that global warming isn't real. Are you one of these people?
Do you hold on so dearly to this notion that evidence to the contrary outrages you? Isn't this a symptom that just maybe you might be wrong?
When I look at any of the graphs used to back up the global warming story, I do not see evidence of warming. Usually the graphs are zoomed in and incorrectly based. People like to imagine that they can 'see' a signal in the noise just like the stock graphs on the nightly news. But its not there, it is an illusion. Weather is a chaotic system so you will see fluctuations. Fluctuations are indicative of nothing.
Making the case that just because there is no evidence of a problem that reducing CO2 emmisions is still a good idea is an invalid argument. There are many things that might be true but have no basis, such as the idea that you should give me all your money if you want to go to heaven. Taking action on imagined crisis is foolish.
Just because the neo-cons are assholes does not imply that everything they say is wrong. In this case, the evidence is on their side.
I'll bet you a dollar that Europe would start competing for 'our' Mexican and Venezuelan oil supplies if Gulf production shut down.
reckon?
See the authors' reply hereE PaperP roblem.pdft ml
http://holocene.evsc.virginia.edu/Mann/Eand
and Kevin Drum's comment here:
http://www.calpundit.com/archives/002564.h
"In laymen's terms, they say that their critics are completely full of shit and wouldn't know their ass from a hole in the ozone layer."
What I never hear discussed is why global warming is supposed to be a bad thing. Look at what global warming is supposed to do: slight increase in average atmospheric temperature, melting polar ice caps, increase in tropical climate zones, decrease in polar climate zones, and increasing sea levels.
From the point of view of every other species on the planet, aren't these good things? More shallow ocean area (where most marine organisms live), more tropical areas (where most land organisms live), and a return to the warmer temperatures more prevalent throughout most of the richer periods of Earth's evolutionary history. For the animals it's win win win.
For humans isn't it really just a straight cost/benefit analysis? Benefits of industrial CO2 emissions versus the costs from rising sea levels (Holland anyone?) and costs from having to relocate crop lands due to shifting weather patterns (remember melting polar caps means MORE overally rainfall - not worldwide deserts). It's a question to be answered but the problem with Kyoto was always that it crippled the First world economies (why no first world nation, not even signatories is even pretending to implement it) to very little actual effect.
I wouldn't be surprised to find out that for the cost of Kyoto we could wall in all the coastal cities of the world, provide agricultural assistance to affected areas and still come out ahead.
But I guess straight economics isn't PC...
Seriously, why isn't Canada pumping out CO2 as fast as possible?
While climate change may or may not be caused by human activity, there is other much more obvious and pressing proof that we are in fact destroying this planet. For example, there is little doubt that the mass extinction and loss of biodiversity we are currently seeing is unprecedented (save maybe for the extinction of the dinasaur era 65 million years ago). The danger here is that some may be tempted to use the results of this climate study as some sort of proof against environmentalism in general.
While a reduction of CO2 emissions is nice, the real effect of Kyoto would have been to boost renewable, non-polluting sources of energy. The benifits of this go far beyond just greenhouse gasses. By getting off oil we could do everything from reducing cancer rates (less air pollution), to decentralizing the power grid, to shifting global power away from terrorist states like Saudi Arabia. It really is a win-win situation for everyone -- except those who are currently in power.
"It is our blasphemy which has made us great, and will sustain us, and which the gods secretly admire in us." - Zelazny
It is a pity that the original MBH paper you link to states (page 1 top right) "112 indicators back to 1820" and (page 3 middle right) "the reconstructions from 1820 onwards based on the full multiproxy network of 112 indicators". 159 does not appear in the paper except in the date 1599.
This is a normal part of the peer review. We will have to see if this new paper stands up or has flaws itself. Don't hold you breath. The way we view the world has not suddenly just changed. There is just a new strand to the science to be looked at and investigated in more detail.
Nooooooooo....
I believe we're still waiting for the documents relating to the oil companies' 'consultations' with Archduke Cheney over energy policy, aren't we?
Why do people think environmentalists would be biased, anyway? What are they biased towards? Not dying? Is there some secret Globex-EnviroCorporation Inc in which all tree hugging hippies have undisclosed shares? Or is it possible that they simply understand the value of erring on the side of caution when the stakes are so high?
I love it that people think that they are able to be so 'skeptical' about the environment. Can't you see that the logical way to be skeptical about it is to assume that the warning signs mean something significant until you can be sure they don't? Otherwise you're acting like someone with half the symptoms of cancer who wants to wait until they have them all before getting it checked out. After all, you can never be sure so better to do nothing, eh?
Don't worry, go ahead and doubt environmentalists. I'm sure businessmen whose entire job is making profits for their own companies are *much* more reliable at telling you what the state of the environment is.
Read Pynchon.
I think we're seeing that now in the data.
Yes, 10 years worth of data on climate change is relevant. After all, I remember that when I was a kid 30 years ago it never snowed this much/so little, therefore there must be climate change because I perceive it to be so (in addition to being told incessantly by news media whose attention span sometimes exceeds "oooh, look, shiny", frequently doesn't know what its talking about but knows that fear sells newspapers.
Because the same thing could be applied to anything that lacks proof, but would have a consequence if true. The oldest example I know of this kind of thing is Pascal's wager. It's an argument for the belief in god that goes like this:
There is a 2x2 matrix, where you either believe or don't believe in god and he does or doesn't exist. You then fill in the boxes with values for benefit or penalty for the situations. Now what Pascal argued is that in the "does exist" column the values are infinite, positive for belief, negative for disbelief since teh reward and punishment are infinetly greater than anything in this world. So it doesn't matter what is in the "does not exist" column since it will be finite. Well, you don't want to risk it, so you should jsut believe in god.
This is, of course, hugely problematic and easy to poke holes in. There are tons of other cases we could argue including that it ISN'T infinite in the "does exist" column, that god can tell between real and faked belief, that there is a different god, etc.
Now the problem is applying that kind of "you can't risk it" logic to everything lets psuedo science get teh same creedence as real science, and in that, swindlers. Like suppose I come to you with a bunch of graphs n' numbers n' daigrams and stuff. I tell you that this is data on my new drug that can cure all forms of cancer. All I need is $10 million to develop it. You look over my data and realise that it in no way justifies my claim. My response? "Yes, but can you really risk it? I mean what if my data IS right and I CAN make the drug? Can you risk on missing out on that oppertunity, not to mention depriving society of that benifit?" If you find that compelling, well then I have some graphs n' numbers n' daigrams to show you...
Basically, before comitting to something as a fact, and making large changes becaues of it, it needs to pass scientific (strong inference) muster. Otherwise, we get into a really bad situation.
But that's the problem. Kyoto isn't about pollution, it's about greenhouse gases, most notably CO2. The argument I hear from many scientists is that the efforts to enforce Kyoto will take away from efforts to reduce actual pollution -- that is, chemicals that are harmful to humans, animals, and plants. CO2, and other greenhouse gases, do not fit this description.
Enforcing Kyoto could actually make pollution worse. That's why it's paramount that it be clearly demonstrated that:
Global warming be demonstrated as a real phenomenon. (This appears to be true, but it hasn't been shown this isn't a natural cycle.)
Global warming is shown to be caused by greenhouse gases. (This definitely hasn't been shown to be true.)
Damage from global warming is a higher priority than other polluting chemicals that harm living organisms. (This definitely hasn't been shown to be true.)
Is that by bottling up the sub industrial nations with environmental regulations, and thereby slowing their advance through the industrial stages, we may be making the problem worse in the long run.
The best way to get people to care about the environment is to get them beyond the point of having to worry about food, clothing and shelter. People worried about their next meal really could care less about pollution.
Kyoto and similar measures threaten to force sub-industrial nations to submit to burdensome restrictions that will make it harder for them to blossom into a wealthier economy.
Furthermore, it's grossly unfair to prolong the poverty of such nations by dictating how they can and can't develop so that we can sleep easier at night.
Remember, we didn't have any such restrictions when we went through this stage.
Local variance in temperatures over a short time span (our lifetimes) does not equate to "global warming". We had an unusually mild summer here. Am I to assume that an ice age is right around the corner? We're not talking about localized changes in weather patterns here. We're talking about the entire planet potentially increasing in the amount of heat - fractions of a degree, yes, but in a large storage system this amounts to a large quantity of heat. If (and this is a big if) this is because of greenhouse gases, then we need to take some sort of action. But, until we're sure, kneejerk reactions based on local fluctuations is intellectually vapid and scientifically invalid.
Everyone wants to blame environmental problems on either (1) industry or (2) governments, both playing politics. One has to remember that science is largely politically driven as well. What should be an objective, truly scientific process often turns into personal agenda promotion and/or a dash for cash from (1) or (2) above. Science is not above political ambition, although it should be. Scientists that are not above political ambition/agenda promotion aren't to be trusted.
What we need, and by definition cannot get, is an objective, non-biased, scientifically valid analysis of untainted data to determine what, if any, global impact greenhouse gases have had. There are big problems here, however. No one understands the natural variations in global temperatures. You can't remove the other variables from the system (solar activity, global windfield changes, ocean current variations, etc.). You can't establish a control (no second earth - darn!). We can't devise an experiment to perform any valid testing ("Let's release gigatons of CO2 this year, and then readsorb it all next, year, and study the results."). Even if you had these conditions covered, or cleverely circumvent the need for them, you can't get unbiased funding, and that taints the process unacceptably. Unbiased researchers are hard to come by as well. They exist (although in fewer numbers and in relative anonymity to the known players), but they're unlikely to be trusted based on the funding sources. Therefore, political statements like the Kyoto Accords are based on sketchy science at best, politics at worst, and shouldn't be considered to be solutions to a problem that may not even exist.
Comparing the agendas on both sides may well be valid, but what about comparing the consequences if either side is wrong ??
If the tree huggers have got it wrong we see smaller profits, disgruntled share holders and short term job losses. Boo-hoo.
If the Megacorps have got it wrong (or more likely are simply covering up) then we've screwed up the planet.
The stakes are a little bigger.
He found out that ther chemicals that impregnated the ice are similar only to the ones which emanates from the General Motors factories, in Detroit, US.
The chemicals couldn't be from the automobile factories in southern France, could they?
an ill wind that blows no good
Enough clear evidence? You're kidding, right?
Geologically we know for a fact that Ice Ages have occured off and on in the last few million years. Every Ice Age involves substancial global cooling and then substancial global warming to come out of. The last Ice Age was only tens of thousands of years ago, which a rather small number when talking about geological time. It may be that we just have not reached the peak temperature after coming out of an Ice Age.
I think its amazing how much credit we give ourselves on our impact on the climate. While I agree that cleaner fuels, and more importantly power generation are good things. Our impact is still insignificant on many levels. Just one volcano can have more climactic impact than all the people on earth. Yellowstone's caldera volcano, if (or when) it erupts again will have more impact on the climate than mankind has had throughout the entire industrial age.
We should minimize our impact on the environment, but we could well find that the climate is just doing whatever it wants and we are exaggerating in the extreme what we can do about it.
Hell, we're currently perplexed at what the sun is doing right now and its the root cause of all global warming.
I had a chance to ask an expert on climate change and Nobel Prize winner about the climate change controversy. His response, summarized was:
1. Evidence of some warming is incontrovertible.
2. This warming may or may not be due to C02 emissions.
3. At this point in time, since evidence is still preliminary, he estimates the chances of the greenhouse effect being a real, scientific fact at about 10%.
4. In day to day life, we buy insurance for, say, a house fire, at much lower odds than that (chance of your house catching fire is 0.01%).
5. Hence he supports a moderate version of the Kyoto protocol as insurance against the possibility of the greenhouse effect being real.
6. That was his recommendation to President George W. Bush: sign Kyoto.
7. Bush chose not to follow his advice.
So were all the 15th century records of cold weather and advancing ice phony? Was the world really warmer and milder than today? Was there a vast conspiracy in the late 1400s to record phony accounts of the weather in order that 20th century environmentalists would believe in Global Warming? I don't think so!
So are you saying that if you produce 10 million gallons of say PVC (this is based off a real situation here) and in doing so you kill several hundred workers, irreversible the water supply of a town, cause irreversible health effects for the town and the majority of your workers, etc etc then that's ok since the bum probably burned some plastic in his steel drum? I understand efficiency, but efficiency isn't an excuse to cause environmental damage. I breath the air and I breath the water. This is mine too and you don't have the right to mess it up for me. In economic terms it's called externalizing costs. Pollute to make money and wait for the public to pay the health and environmental costs. It must be accepted that pollution to some extent is unavoidable, but using the excuse of efficiency to allow unlimited pollution or to justify ridiculously high levels is unacceptable. There are ways for companies to continue to be profitable while reducing their pollution significantly. They just have to try and of course pay. There just aren't many companies out there that see that as an important investment.
Tim Smith - Ramblings from Nerd Land
Its amazing how many people cite volcanoes when dismissing human influence on the climate.
Yes, a single volcano (Pinatubo for example) can cause global scale cooling by throwing particulates into the atmosphere. Then the particulates settle out, and in a year or two temperatures return to normal.
This is compared with CO2, which lasts 100+ years in the atmosphere, and during each and every one of those years is adding a little bit of extra heat to the planet. We have changed the concentration of CO2 in the atmosphere by 30%!!!
The forcing caused by that extra 80+ ppm of carbon dioxide is much larger than the observed variability of solar forcing. It is _not_ insignificant. Think about it. Please.
-Marcus
The environmental movement has done a lot of good in making us take stock of how we're disposing of our waste. Los Angeles air and San Francisco Bay are a lot cleaner today than they would have otherwise been had it not been for the hoopla. But at the same time, you have to be very skeptical when someone tries to tell you we're going to destroy the earth if we keep doing what we're doing. In geologic terms, we've been around for a brief moment and the earth has managed some amazingly self-destructive feats without us and yet here we are.
Global warming believers and deniers alike should welcome the paper from McIntyre and McKitrick, and the argument it has started. This is normal science at work: observation, accretion of data, and the formulation and challenging of theories. Here at Worldwatch Institute we're hoping people will remember that the data "M&M" refer to are but one element of a much larger case, built up over many years, supporting the conclusions that the Earth is warming and that human economic activity (especially burning fossil fuels) has a lot to do with it. Even without the threat of climate change, there are so many other reasons for a rapid conversion away from fossil fuels--local pollution, health effects, impending shortages, security--that it would still make great sense. (Incidentally, the claim that the disputed Mann data were "a pillar of the Kyoto accord" is not true; they were published the year after the Kyoto Protocol was drafted.) A lot more information on these topics is available via our website (www. worldwatch.org); click on Energy.