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May 1, 2007 at 09:12:36

Misunderstanding Global Warming: Alexander Cockburn versus Global Warming.

by Dr. Michael P Byron     Page 1 of 3 page(s)

www.opednews.com

 

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Misunderstanding Global Warming: Alexander Cockburn versus Reality.

Misunderstanding Global Warming: Alexander Cockburn versus Reality.

By Mike Byron, PhD.

Introduction


I was astonished to read Alexander Cockburn’s essay in the April 28th online edition of Counterpunch entitled “Is Global Warming a Sin?” [[i]] Cockburn’s thesis is that there is no scientific evidence whatsoever linking anthropogenic (human caused) CO2 emissions with worldwide increases in mean temperature “global warming.” Comparing the proposed sale of carbon credits to alleviate future global warming to the medieval practice of the Catholic Church selling indulgences to cancel past sins, Cockburn asserts:

"There is still zero empirical evidence that anthropogenic production of CO2 is making any measurable contribution to the world's present warming trend. The greenhouse fearmongers rely entirely on unverified, crudely oversimplified computer models to finger mankind's sinful contribution. Devoid of any sustaining scientific basis, carbon trafficking is powered by guilt, credulity, cynicism and greed, just like the old indulgences, though at least the latter produced beautiful monuments." [[ii]]

Cockburn bases his conclusions upon the research of Dr. Martin Hertzberg whose conclusions he places above “all the counsels of Al Gore or the jeremiads of the IPCC (Inter-Governmental Panel on Climate Change).” Fair enough, Cockburn wishes to disregard the careful, published, peer-reviewed, findings of essentially the entire global scientific community, in favor of the assertions of his favored climatologist. He can do that; however, we are not compelled follow his astounding leap of judgment. Fairness however, does require me to carefully evaluate and consider Hertzberg’s rival global warming hypothesis and its several assertions.

The Hertzberg-Cockburn Critique of Global Warming

What are these assertions of Hertzberg’s hypothesis? His argument is that temperature changes are driven by long-term changes in the amount of sunlight striking the Earth. These changes are caused by Milankovitch cycles, named for the Serbian scientist who first described them. Wikipedia defines these as follows:

"Milankovitch cycles are the collective effect of changes in the Earth's movements upon its climate, named after Serbian civil engineer and mathematician Milutin Milankovitch. The eccentricity, axial tilt, and precession of the Earth's orbit vary in several patterns, resulting in 100,000 year ice age cycles of the Quaternary glaciation over the last few million years. The Earth's axis completes one full cycle of precession approximately every 26,000 years. At the same time, the elliptical orbit rotates, more slowly, leading to a 22,000 year cycle in the equinoxes. In addition, the angle between Earth's rotational axis and the normal to the plane of its orbit changes from 21.5 degrees to 24.5 degrees and back again on a 41,000 year cycle. Presently, this angle is 23.44 degrees. The Milankovitch theory of climate change is not perfectly worked out; in particular, the largest observed response is at the 100,000 year timescale, but the forcing is apparently small at this scale, in regards to the ice ages. Various feedbacks (from carbon dioxide, or from ice sheet dynamics) are invoked to explain this discrepancy." [[iii]]

Simply put: the Earth’s orbit around the sun varies somewhat with respect to how circular its orbit is, the degree that is poles are tilted with respect to the plane of its orbit, and the position of its poles with respect to the far stars, which “wobbles” (precesses). These several variations occur regularly in cycles of about 22,000, 26,000, 41,000 and 100,000 years. Their composite effect is to vary the amount of sunlight striking the Earth’s surface.

Hertzberg’s assertion is that this process of variation in the strength of sunlight striking the Earth is what drives global climate change. The primary mechanism for this climate change does indeed involve CO2 release in to the atmosphere, according to this thesis. However, the causal order (which variable causes what effect) is reversed from what we would expect:

"Water covers 71 per cent of the surface of the planet. As compared to the atmosphere, there's at least a hundred times more CO2 in the oceans, dissolved as carbonate. As the postglacial thaw progresses the oceans warm up, and some of the dissolved carbon emits into the atmosphere, just like fizz in soda water taken out of the fridge. "So the greenhouse global warming theory has it ass backwards," Hertzberg concludes. "It is the warming of the earth that is causing the increase of carbon dioxide and not the reverse." He has recently had vivid confirmation of that conclusion. Several new papers show that for the last three quarter million years CO2 changes always lag global temperatures by 800 to 2,600 years." [iv]

More sunlight striking the Earth’s surface causes the planet’s oceans, which account for 71 percent of its surface, to heat up. Because the mass of the oceans is much greater than that of the air—about 100 times greater, in fact—there is a considerable lag before oceanic heating becomes sufficient to cause the oceans to release greater amounts of CO2 into the atmosphere. In Hertzberg’s view, the CO2 is an effect and not a cause of global warming.

It is this natural process of variation in sunlight striking the planet, and not anthropogenic CO2 emissions, per Hertzberg, which accounts for the increasing amount of CO2 in the Earth’s atmosphere. To “prove” this point, Cockburn asserts that CO2 emissions fell significantly due to the Great Depression, while temperatures continued to increase, thus “proving” that planet-wide temperature increase is independent of atmospheric CO2 levels.

Cockburn offers several purported examples from the historical record (the Little Ice Age) and the geological record (the Eocene Period) which supposedly further demonstrate the lack of a link between atmospheric CO2 levels and planetary temperature. He is clearly asserting that there is no causal relationship between atmospheric CO2 levels and planetary temperature whatsoever. In other words planetary temperature is independent of CO2 levels in the atmosphere! Not now, not millions of years ago, never, have atmospheric CO2 increases caused temperature increases! That assertion left me stunned, I must admit.

What is the atmospheric component which actually accounts for greenhouse effects according to Hertzberg’s theory? Water vapor! Cockburn asserts that climate modeling by the world’s climate scientists (other apparently than Hertzberg) ignores the effects of water vapor: “And water is exactly that component of the earth's heat balance that the global warming computer models fail to account for.” [[v]]

Having discounted anthropogenic effects from having any significant effect whatsoever on the world’s climate, Cockburn then makes a vague reference to the Earth itself as being a cause of planetary warming, asserting: “…the human carbon footprint is of zero consequence amid these huge forces and volumes, and that's not even to mention the role of the giant reactor beneath our feet: the earth's increasingly hot molten core.” Whether the Earth’s allegedly “increasingly hot molten core” plays a role in Hertzberg’s global warming theory, or is just another a priori belief of Cockburn’s is not specified. I will therefore subsequently ignore this vague assertion until and unless Cockburn chooses to be more specific about it.

Hertzberg-Cockburn Critique of Global Warming Rebutted.

First of all, until very recently, human civilization has simply not been of sufficient magnitude to cause any significant effects whatsoever upon global climate and temperatures. Therefore, until very recently, natural forces were wholly responsible for changes in the Earth’s climate and its overall temperature. These natural forces were primarily changes in the amount of sunlight striking the planet due to the Milankovitch cycles. The long lag associated with increasing sunlight warming the Earth and the consequent heating of the oceans and frozen bogs (which release methane a greenhouse gas 30 times more potent that CO2) constitutes a kind of “thermal inertia.” However, as these positive (that is, amplifying) feedback loops kick in, including oceanic warming, ice melting (affecting the planet’s reflectivity) permafrost melting etc., the process of warming begins to accelerate.

 1  |  2  |  3

 

Michael P Byron is the author of the just released book The Path Through Infinity's Rainbow: Your Guide to Personal Survival and Spiritual Transformation in a World Gone Mad. This book is a manual for taking effective action to deal with the crises of our age including global climate change, peak oil, and political failure to deal with these and other problems. His previous book is Infinity's Rainbow: The Politics of Energy, Climate and Globalization. Byron has a Ph.D. in Political Science from the University of California, Irvine.  He teaches all aspects of Political Science and Political Economy in local colleges in the San Diego area.  He was the Democratic Party's candidate for United States Congress in California's 49th Congressional District in 2004. In 2002, he  ran as a write-in candidate upon discovering that the Republican incumbent, Darrell Issa, had no major-party challenger.

Mike lives in Oceanside, CA with his wife, Ramona Byron. Both are Navy veterans.

 

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16 comments


DrColes

CO2 and Global Warming

Current alarmist, incompetent stories regarding CO2 Causing Climate Change is a fraud. Junk science is infesting the media, the Internet and public schools, affecting public health, squandering your tax dollars, poisoning sick people and miseducating our children.  Pseudoscientific claptrap abounds. Quackery is now found everywhere.  Educate, inform yourself, take a science class. See CO2 and Climate Change http://www.InteliOrg.com/co2_climate_change.html 

Stop listening to folks that have a financial interest in the subject.
 Unfortunately, we can no longer trust the media for information, as they no longer assign "Reporters" that investigate then report on a subject, most just parrot or reinterpret the information to fit their bias or their employers bias and then publish (this is called yellow journalism), thusly we have a world of disinformation and junk science.

by DrColes (0 articles, 0 quicklinks, 0 diaries, 23 comments) on Tuesday, May 1, 2007 at 10:50:19 AM
 


Concerned Citizen
BenConcerned Citizen

venus

Food for thought - less than 5% of the sunlight that reaches Venus actually makes it through the dense cloud cover and atmosphere, yet it is twice as hot as Mercury.  This fact doesn't seem to fit into the idea that Venus is an example of global warming gone awry.  How the hell would the scientists the author cites have any clue whether venus has ever been temperate?  Also, Mars is undergoing a warming period of it's own, and it barely has an atmosphere.  There is an example than can be twisted to any theory.

by Ben (0 articles, 0 quicklinks, 1 diaries, 46 comments) on Tuesday, May 1, 2007 at 11:22:12 AM
 


Student of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.
Mac McKinneyStudent of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.

Cockburn Half-Cocked As Usual

Cockburn's problem is that he has, at least to me, a split personality. He is a brilliant analyst of the evils of capitalism and imperialism, but at the same time he has often been a naive fellow traveler for their crimes and agendas. For example, he has always lambasted any criticism of the Warren Commission whitewash that Oswald acted alone as paranoid delusion. Now E. Howard Hunt's just released "Deathbed Confession" tape by his son is accentuating what many of us have long realized, that Cockburn is the delusional one. Hunt's tape is naming names, including LBJ's and his own, as being in on the assassination. If anybody was an insider as to the hidden machinations of the CIA and government in the 60's, it was Hunt.

Cockburn also is in denial about Peak Oil, putting himself in the same company as Exxon-Mobil and the "infinite resources of Nature" myth-makers, and is extremely antagonistic toward the 9/11 Truth Movement, dedicating some of CounterPunch to "debunking" it with theories that are as strained and convoluted as any, if not more so, than those he attempts to debunk. So again he serves the Empire that he hates so much by helping to maintain the cover-up over the very linchpin of the entire War on Terror.

Finally, he thinks he is being the hard-nosed realist here on global warming, as if the scientific method is the equivalent of the rantings of Medieval Millenarians. So again he ends up supporting the self-destructive agendas of Capitalism and Empire, of Bush/Cheney and Exxon in particular, as they continue their policies of unsustainability and alienation from Nature.

Every week now global warming researchers are discovering, to their dismay, that the evidence and consequences of global warming are exceeding their worst predictions, yet Cockburn smuggly ignores this as mere paranoid delusion. Cockburn, however, is himself not grounded in reality; he is floating about in his all too clever world of distrust and unresolved internal conflicts. Maybe it has to do with his father being harassed by the British authorities for decades as a Communist, as a member of the "International Communist Conspiracy", that sets him off when he hears people talking about conspiracies. I don't know. But he is to be read with huge grains of salt on all these matters of such great importance.

by Mac McKinney (42 articles, 69 quicklinks, 164 diaries, 1071 comments) on Tuesday, May 1, 2007 at 12:42:17 PM
 


John Doraemi publishes Crimes of the State Blog:
http://crimesofthestate.blogspot.com/

johndoraemiJohn Doraemi publishes Crimes of the State Blog:
http://crimesofthestate.blogspot.com/

Nice try, not proof.

Problemo numero uno with the Global Warming(TM) hysteria crowd:

They never establish the baseline. You're a PHD. You should be able to tell us how much NATURAL WARMING would have occured since the little ice age 1450-1850. To fail to account for nature's own contribution to warming, you put the entire effect on "man." Until you acknowledge the very real and very natural temperature variability (instead of insuling our intelligence that the temperature should somehow be static at "pre industrial" level), you don't have a legitimate argument.

Problemo dos: They overstate the amount of alleged warming.

Temperature records vary. It's difficult to get an accurate historical reading, and proxy measurements must be relied on (imperfect). We also have the "heat island effect" altering the temperature in the positive direction locally around cities and whatever monitoring stations are located near them. Dr. Fred Singer has stated that if you correct for the heat island bias, then 1940 was the hottest period of the last century, not now.

3. You mock the contribution of water vapor in the equaiton? That was quite unscientific and failing to account for the most heat trapping greenhouse gas on planet earth.

While computer models do some attempted calculations, they are not accurate enough to predict the el nino cycle. They are primitive and not to be relied upon for predictions 50 years in the future. Valid criticism of computer modelling is ignored by the hysterical.

4. This is actually one of the coldest periods in the last 540 million years! The amount of natural warming and cooling is staggering, and obviously not dependent upon mankind. This is never acknowledged.

Temperature Record of Last 540 Million Years

http://tinyurl.com/3bekvt

Is it too much to ask that you prove your case in the name of "science" if you want to take over the entire earth's energy sector and put us all on a Stalinistic rationing regime? George Monbiot would have us cut our petroleum usage by 91% immediately! And he acknowledges that the science is so inaccurate they can't get meaningful measurements of CO2 contribution to temperature. Based on that case, it seems he should be fitted for a straightjacket.

I don't appreciate the condescending attitude that skeptics to your power play are to be treated like children. The CO2 DOES lag the temperature changes by centuries, meaning that some OTHER force has the power to initiate climate changes on planet earth without using CO2 to do it. Until you account for that OTHER force, your theory is horseshit.

John Doraemi publishes Crimes of the State Blog
click here

by johndoraemi (17 articles, 12 quicklinks, 6 diaries, 166 comments) on Tuesday, May 1, 2007 at 5:05:28 PM
 


Student of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.
Mac McKinneyStudent of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.

Query

In reading your comment, I was struck by your statement in one paragraph that "Temperature records vary. It's difficult to get an accurate historical reading, and proxy measurements must be relied on (imperfect)" versus this statement in a later paragraph: "This is actually one of the coldest periods in the last 540 million years! The amount of natural warming and cooling is staggering, and obviously not dependent upon mankind."

If historical accuracy is so difficult, how can you be so confident about that later statement? Actually, one of the main tools scientists have for attempting to gauge the past in terms of environmental conditions is through ice core samples drilled in frozen regions such as the Arctic, which they are relatively confident about in analyzing. Scientists have not yet been able to extend their samplings to even a million years ago if memory serves me correctly, so whatever you are saying about 540,000 million years ago on up to today is rather conjectural. Certainly we are cooler than when the earth was a ball of molten lava, but that's not very relevant to the very small temperature range in which life forms can exist. Within these limitations, the vast majority of scientists are duly alarmed that we are headed for our upper limit as I write. So are we to sit and fiddle while the planet approaches meltdown or take their advice and cut carbon emissions? Would you rather have us shrug our shoulders and quip that this is just a cyclic thing. Don't worry about it?

by Mac McKinney (42 articles, 69 quicklinks, 164 diaries, 1071 comments) on Tuesday, May 1, 2007 at 6:04:22 PM
 


Michael P Byron is the author of the just released book The Path Through Infinity's Rainbow: Your Guide to Personal Survival and Spiritual Transformation in a World Gone Mad. This book is a manual for taking effective action to deal with the crises of our age including global climate change, peak oil, and political failure to deal with these and other problems.

His previous book is Infinity's Rainbow: The Politics of Energy, Climate and Globalization.

Byron has a Ph.D. ...

to see more of bio, click on member name

Dr. Michael P ByronMichael P Byron is the author of the just released book The Path Through Infinity's Rainbow: Your Guide to Personal Survival and Spiritual Transformation in a World Gone Mad. This book is a manual for taking effective action to deal with the crises of our age including global climate change, peak oil, and political failure to deal with these and other problems.

His previous book is Infinity's Rainbow: The Politics of Energy, Climate and Globalization.

Byron has a Ph.D. ...

to see more of bio, click on member name

Venus and Mars

You might try learning something about physics, in particular about Venus' atmospheric physics. for a starter, try the article on the Venusian atmosphere in wikipedia at: http://en.wikipedia.org/wiki/Atmosphere_of_Venus . In reading it pay careful attention to this paragraph: "The enormous amount of CO2 in the atmosphere creates a strong greenhouse effect, trapping solar energy and raising the surface temperature to around 500 °C, hotter than any other planet in the solar system, even that of Mercury despite being located further out from the Sun and receiving only 25% of the solar energy that Mercury does. The average temperature on the surface is above the melting points of the metals lead (327 °C), tin (232 °C), and zinc (420 °C)."

Now *think* about that for a while.  What makes Venus hotter than Mercury???

As to the Martian warming story, I've addressed it already.  
Recall that my citation above at http://www.livescience.com/ environment/070312_solarsys_warming.html .  It has a good discussion of the solar heating issue with respect to Mars which reflects the views of the world's scientific community on this issue.

Remember that the off the wall statements about financial interests producing junk science by one of the posters here conflates that one one side of this issue you have, essentially, every single scientist on Earth, and on the other you have a handfull of corporate paid shills and the odd genuine dissenter who is used as a 'useful idiot' by these corporate interests. This type of argument tactic was perfected by the tobacco companies in confusing the public about the dangers of smoking. It is garbage.

Generally, the anti-global warming comments here reflect a lack of scientific knowledge, coupled with an evident ideological bent, pechant for straw man arguments, etc. So, in the end all that can be done is to just let the readers decide for themselves.

Further deponet sayeth not.

by Dr. Michael P Byron (10 articles, 0 quicklinks, 0 diaries, 5 comments) on Wednesday, May 2, 2007 at 1:00:20 AM
 


Concerned Citizen
BenConcerned Citizen

wikipedia?

yeah, wikipedia is the place to get information on physics.   Only a fraction of the sunlight reaches the planet, the rest is reflected off into space - hence the brightness.  Now, if our planet was covered in dense cloud cover for millenia, earth would be an ice world - no matter how much CO2 is in the atmosphere.  Court's not out on the history of Venus - you obviously subscribe to the idea that all the planets formed the same time from a cloud of dust surrounding the sun.  However, there is more and more evidence year after year that theory is obsolete (such as moons in the solar system orbiting the opposite direction, even nasa scientists have begun to warm up to the idea of capture).  If Venus is a far younger planet, or a planet like body captured long after the earth was formed - the extreme heat and volcanic activity present could be the source of the heat (as well as the electrical interactions with the sun - of which there is more and more research every day!)

I know that humans pollute the earth, we affect the earth - but until we fully understand the science of what's going on here, I'll refer to the conditions we're experiencing as CLIMATE CHANGE - because that is a fact.

However, if the idea of global warming gets people to quit burning oil - good.  It should be reason enough to stop simply because it's finite, and millions of people have died because of it.  I just hope when we have a country full of nuclear plants, our water is expensive and privatized, and we're paying incredible prices for GAS and ethanol 10 years from now, we don't find out Global Warming is bullshit, and we've done nothing to prepare for what's really going on.

by Ben (0 articles, 0 quicklinks, 1 diaries, 46 comments) on Wednesday, May 2, 2007 at 11:31:26 AM
 


Student of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.
Mac McKinneyStudent of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.

Computer Models Definitely Not Perfect

 It was commented upon above that computer models are not not highly accurate, with the inference that we may be overestimating the threat from global warming. Well, this cuts both ways, for computer models can also underestimate a threat. Read the following MSNBC to see what I mean. By the way, the article doesn't point out that an Arctic devoid of ice will dramatically increase sea temperatures over time, for the dark waters of the deep ocean will absorb much more sunlight, instead of what we have now, sunlight relected back into space by the white layers of ice.

Arctic Sea Ice Melting Much Faster, Experts Find
    MSNBC News

http://www.truthout.org/issues_06/050107EA.shtml

    Monday 30 April 2007

Study indicates that UN reports on warming are too conservative.

    Arctic summer sea ice is melting at a significantly faster rate than projected by even the most advanced computer models, according to a new study that concludes recent U.N. reports on warming underestimate the changes in the Arctic.

    The shrinking of summertime ice is about 30 years ahead of the climate model projections, researchers with the National Center for Atmospheric Research and the University of Colorado's National Snow and Ice Data Center report in the online edition of the peer-reviewed journal Geophysical Research Letters.

    The U.N.-sponsored Intergovernmental Panel on Climate Change had used data from the computer models to earlier this year release two reports on the state of Earth's climate. Citing earlier studies, the IPCC estimated that the Arctic could be free of summer sea ice somewhere between 2050 and 2100.

    The new study, NSIDC researcher and lead author Julienne Stroeve said in a statement, "suggests that current model projections may in fact provide a conservative estimate of future Arctic change, and that the summer Arctic sea ice may disappear considerably earlier than IPCC projections."

    NCAR scientist and co-author Marika Holland added that "while the ice is disappearing faster than the computer models indicate, both observations and the models point in the same direction: the Arctic is losing ice at an increasingly rapid pace and the impact of greenhouse gases is growing."

    While computer models are built to look forward, the authors ran them from a 1953 starting point and simulated, on average, a loss in September ice cover of 2.5 percent per decade through 2006.

    The researchers then compared that to data taken from recent satellite measurements, as well as aircraft and ship reports, and found that the September ice actually declined at about 7.8 percent per decade.

    Several possible factors were cited for the disparity:

  • The models assume that half of the ice loss was due to increased greenhouse gases, but the study indicates those gases might play a significantly larger role.

  • Several models overestimate the thickness of the present-day sea ice.

  • The models might fail to fully capture changes in atmospheric and oceanic circulation that transport heat to polar regions.

    A world without summer sea ice won't raise sea levels because that ice is already on water, not land. But it would have a huge impact on polar bears and other wildlife, as well as subsistence hunters. On the other hand, it would also open shorter sea routes, facilitating commerce.

    The study was funded by the National Science Foundation and NASA.

by Mac McKinney (42 articles, 69 quicklinks, 164 diaries, 1071 comments) on Wednesday, May 2, 2007 at 11:50:51 AM
 


John Doraemi publishes Crimes of the State Blog:
http://crimesofthestate.blogspot.com/

johndoraemiJohn Doraemi publishes Crimes of the State Blog:
http://crimesofthestate.blogspot.com/

response


"If historical accuracy is so difficult, how can you be so confident about that later statement?"

Because giant cold-blooded lizards roamed the earth.

http://en.wikipedia.org/wiki/Image:65_Myr_Climate_Change.png

"Actually, one of the main tools scientists have for attempting to gauge the past in terms of environmental conditions is through ice core samples drilled in frozen regions such as the Arctic, which they are relatively confident about in analyzing."

No shit Sherlock. That's where they determined 800+ years of lag between temperature rise and CO2 rise. In other words, CO2 changes have never initiated a temperature change in history (past 640,000 years anyway), and have always followed the temperature change. The ice core data does not help your case.

"So are we to sit and fiddle while the planet approaches meltdown or take their advice and cut carbon emissions?"

Well, there's a pretty good chance that cutting emissions will do nothing to impact global temperature. One camp of scientists predicts catastrophe. Another group predicts gradual flucutations. The prudent thing to do would be to find out what's really going on, because...

These inconclusive arguments have been used for political and economic gain. The solutions they propose have the potential for massively more harm than good. Keep that in mind.

Byron keeps citing an article that says, "Based on current estimates, even if another Maunder Minimum were to occur, it might result in an average temperature decrease of about 2 degrees Fahrenheit, Rind said." This confirms sun output having a direct relationship on global temperature.

They then use some shaky science indeed.

"New estimates of the total change in the brightness of the Sun during the Maunder Minimum suggest it was only fractions of a percent, and perhaps not enough to create the global cooling..."

The CO2 hysteria is over FRACTIONS OF A PERCENT OF OUR ATMOSPHERE!

CO2 is 0.54% of atmosphere. Most of that is naturally occurring. They discount fractions of a percent of sun power (24/7 heating half the planet), yet claim that fractions of a percent of one gas = Armageddon. This is science with blinders on.

CO2 is also PLANT FOOD making all life on earth possible. These proposed numbers for the level of CO2 that are allegedly optimal are completely arbitrary and pulled out of people's asses. They have no idea what an optimal level of CO2 would be in earth's atmosphere, none, nada, zilch.

CO2 plays a complex part in the life cycle, and that could account for it not having a linear or directly attributed correlation to temperature. If more plant life grows, how does that effect the temperature? Does anyone know? These are complex questions.

Byron ignores the substance of the many valid points I have made, and he resorts to ad hominem, rather than rebuttal. I thought the whole point of this exercise was a scientific rebuttal? If you can't acknowlege the other side has a valid point, you are not debating, and you are not honest.

Hey Byron -- The atmosphere of Venus is 96.5% Carbon Dioxide! The atmosphere of earth is 0.54% Carbon Dioxide. Can you pick a less apt comparison!?

You'd have to admit that current global science does not have all the answers. You've opted for maximum caution (but have you stopped driving a petroleum powered vehicle?), and that's fine. But you are basing that on incomplete information. And that's a fact.

http://crimesofthestate.blogspot.com/

by johndoraemi (17 articles, 12 quicklinks, 6 diaries, 166 comments) on Wednesday, May 2, 2007 at 2:16:27 PM
 


Student of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.
Mac McKinneyStudent of history, religion, exoteric and esoteric, the Humanities in general and advocate for peace, justice and the unity of humankind, not through force, but through self-realization and mutual respect.

Dynamite Comes in Small Packages

Hey John,

Making suppositions about the distant past is always tricky. For example, you are, I take it, assuming that dinosaurs were cold-blooded creatures and hence needed a rather warm environment to survive in. However, note this excerpt from Wikipedia, which indicates many dinosuars may not have even been cold-blooded:

"After dinosaurs were discovered, paleontologists first posited that they were ectothermic creatures: "terrible lizards" as their name suggests. This supposed cold-bloodedness implied that dinosaurs were relatively slow, sluggish organisms, comparable to modern reptiles, which need external sources of heat in order to regulate their body temperature. Dinosaur ectothermy remained a prevalent view until Robert T. "Bob" Bakker, an early proponent of dinosaur endothermy, published an influential paper on the topic in 1968.

Modern evidence indicates that dinosaurs thrived in cooler temperate climates, and that at least some dinosaur species must have regulated their body temperature by internal biological means (perhaps aided by the animals' bulk). Evidence of endothermism in dinosaurs includes the discovery of polar dinosaurs in Australia and Antarctica (where they would have experienced a cold, dark six-month winter), the discovery of dinosaurs whose feathers may have provided regulatory insulation, and analysis of blood-vessel structures that are typical of endotherms within dinosaur bone. Skeletal structures suggest that theropods and other dinosaurs had active lifestyles better suited to an endothermic cardiovascular system, while sauropods exhibit fewer endothermic characteristics. It is certainly possible that some dinosaurs were endothermic while others were not. Scientific debate over the specifics continues."

So, the blanket assumption that the millions of years of the dinosaur era were exceedingly warm and tropical ipso facto is just that, an assumption. It is also my understanding that the archaelogical evidence is not supporting traditional theories terribly well. So there may have been more seasonal and temperature variation than we think. Certainly there were hot periods, just as certainly there were cold periods. And the last 500,000 thousand years has fluctuated between shorter warm periods (interglacials) and longer ice ages on a pretty cyclic basis.

What there is no doubt about is that there is a direct correlation between the level of greenhouse gases in the atmopshere and the mean temperature of the planet. In the ice core records, ice ages have recorded less greenhouse gases, warm eras more. Scientists say that without the rather small percentage of greenhouses gases in our atmosphere, miniscule compared to oxygen and nitrogen, the temperature of the planet would be some 60 degrees F. cooler! So, a little bit of water vapor, methane or CO2 goes a long, long way. So I wouldn't belittle the small percentage of CO2 in the atmosphere. If the ratio of CO2 to temperature warming is that dynamic, then it will not take a large increase in the former to strongly effect the latter.

On Venus, where we have an example of a runaway CO2/water vapor effect, the surface temperature is  some 500 degrees Celsius, which will melt lead! Professor Wolfson of Middlebury College states that without an atmosphere, Venus's temperature would be about 55 degrees Celsius.

Until the Industrial Era beginning in the 19th Century, the fluctuations in temperatures as well as CO2 content in the atmosphere were indeed Nature and cosmic driven, and certainly those processes still have their effects today, but the huge daily output of industrially created CO2 is a real wild card threatening to throw everything out of balance, especially as positive feedback loops kick in. It will only take temperature rises of a few degrees Celsius to dramatically effect climate and weather globally.

by Mac McKinney (42 articles, 69 quicklinks, 164 diaries, 1071 comments) on Wednesday, May 2, 2007 at 6:26:59 PM
 


Devlin Buckley is a freelance journalist.
Devlin BuckleyDevlin Buckley is a freelance journalist.

Speaking of rebuttals, I'm still waiting for mine

Originally posted here.

John,

I think your blog is great but I must contend with your latest comments on climate change. I will specifically address each of your arguments below.

"Al Gore's An Inconvenient Truth is also explored, in particular Gore's central claim, the theory of manmade global warming as a result of increased carbon dioxide in the atmosphere..."

It is regretful that Al Gore is now considered the face of global warming. He is not a scientist. He is not a climatologist.

He is a politician.

The "theory of manmade global warming as a result of increased carbon dioxide in the atmosphere" is not really Al Gore's claim. Al Gore is simply repeating the consensus of the scientific community. Therefore, instead of focusing on Al Gore, I suggest taking a look at the work of actual scientists that have been studying, writing about, and advancing the global warming debate for years. By doing so, you will quickly learn that many of the points presented in the "Great Global Warming Swindle" and in your latest posts, have been fully understood and explained by the scientific community.

"According to Al Gore's theory, increased levels of carbon dioxide CAUSE an increase in global temperature. But, interestingly enough, Al Gore does not prove this in his film. Far from it. The very real possibility that increases in temperature cause an increase in carbon dioxide levels (and not vice-versa) is never addressed. Al Gore has short-changed humanity in this most glaring omission: establishing causation.

So, which is it? Does a rise in carbon dioxide cause a rise in the temperature? OR, does a rise in the temperature cause a rise in carbon dioxide?

This is no small question. The entire global economy is being reengineered on the assumption that the first scenario is true. But is it really?

What About 800 Years of Lag?

The big counter-argument to Gore is made by Professor Ian Clark, Dept. of Earth Sciences at the University of Ottawa. Clark says that the ice core record shows that changes in atomospheric carbon levels come after the temperature has already changed, in one example by as much as 800 years."

One must have a basic understanding of the planet's natural climate cycles to accurately address this question, but, unfortunately, most people don't know the first thing about the environment in which we live. This is why the film can successfully take a fact that is commonly unknown to the layman and use it to frame a convincing false argument.

Climatologists are fully aware, and have been for quite some time, that increases in atmospheric CO2 content have lagged the commencement of past long-term natural warming periods. This is not, as many claim, some big revelation disproving the warming effect of CO2.

During natural climate cycles, orbital variations and other minor shifts trigger positive feedback mechanisms, such as ocean degassing, which, in turn, causes prolonged periods of warming. This is what Al Gore meant by 'complicated'.

Nobody in the scientific community has ever suggested that CO2 triggers global warming cycles, only that it fuels them.

"CO2 clearly cannot be causing temperature changes. It's a product of temperature. It's following temperature changes." --Professor Ian Clark

This is highly significant, if true, as it completely disproves Al Gore's theory of manmade global warming. This view is seconded by Professor Tim Ball, a Climatologist at the University of Winnipeg:

"But the ice core record shows exactly the opposite. So the fundamental assumption, the most fundamental assumption of the whole theory of climate change -- due to humans -- is shown to be wrong." --(emphasis in original) Professor Tim Ball, Dept. of Climatology, University of Winnipeg"

Any well-informed and respectable climatologist knows that these statements are blatantly misleading, which seriously calls into question the ethics and motives of these scientists.

Ironically, this film pushes the theory that scientists are propagating global warming for money, but such claims are usually, if not always, based on pure speculation and innuendo.

In reality, scientists are being paid to discredit the theory of man-made global warming; and it just so happens that Mr. Clark and Mr. Ball are two of these scientists.

As The Guardian reported in February:

"Scientists and economists have been offered $10,000 each by a lobby group funded by one of the world's largest oil companies to undermine a major climate change report due to be published today.

Letters sent by the American Enterprise Institute (AEI), an ExxonMobil-funded thinktank with close links to the Bush administration, offered the payments for articles that emphasise the shortcomings of a report from the UN's Intergovernmental Panel on Climate Change (IPCC)."

So what has Ian Clark, the man you have quoted, been up to? Well, for starters, he has been writing articles that emphasize the shortcomings the UN's Intergovernmental Panel on Climate Change. He is also listed as a point of contact for the Competitive Enterprise Institute, a think tank funded by ExxonMobil.

In fact, he recently coauthored a paper for the Fraser Institute, entitled "Independent Summary for Policymakers," which was meant to counter the IPCC's report. What is the Fraser Institute? According to the The Vancouver Sun, it is a conservative think tank that has "received funding from U.S. energy giant ExxonMobile Corp."

Go figure.

As The Sun notes, Exxon's "funding paid for the work of researcher Ken Green," who wrote papers for the Fraser Institute alongside Tim Ball, who was also featured in the "The Great Global Warming Swindle" and quoted above. Small world, eh?

"The film presents an alternate theory that better matches the data: Changes in sun activity cause changes in global temperature.

Other scientists who study sunspots, which are actually gigantic storms and indicate more solar activity, present their case.

The data record of changes in solar activity can be corroborated by multiple data sources. The conclusion of the film is that this record proves that sun activity correlates to global temperature far better than CO2 levels do.

This is a simplified, scaled-down summary of the claims made by the two camps. Further investigation will be needed."

These figures and graphs are inaccurate. According to The Independent:

"The main arguments made in Mr Durkin's film were that climate change had little if anything to do with man-made carbon dioxide and that global warming can instead be linked directly with solar activity - sun spots.

... Mr Durkin's film argued that most global warming over the past century occurred between 1900 and 1940 and that there was a period of cooling between 1940 and 1975 when the post-war economic boom was under way. This showed, he said, that global warming had little to do with industrial emissions of carbon dioxide.

The programme-makers labelled the source of the world temperature data as "Nasa" but when we inquired about where we could find this information, we received an email through Wag TV's PR consultant saying that the graph was drawn from a 1998 diagram published in an obscure journal called Medical Sentinel. The authors of the paper are well-known climate sceptics who were funded by the Oregon Institute of Science and Medicine and the George C Marshall Institute, a right-wing Washington think-tank.

... However, further inquiries revealed that the C4 graph was based on a diagram in another paper produced as part of a "petition project" by the same group of climate sceptics. This diagram was itself based on long out-of-date information on terrestrial temperatures compiled by Nasa scientists.

However, crucially, the axis along the bottom of the graph has been distorted in the C4 version of the graph, which made it look like the information was up-to-date when in fact the data ended in the early 1980s.

Mr Durkin admitted that his graphics team had extended the time axis along the bottom of the graph to the year 2000. "There was a fluff there," he said.

If Mr Durkin had gone directly to the Nasa website he could have got the most up-to-date data. This would have demonstrated that the amount of global warming since 1975, as monitored by terrestrial weather stations around the world, has been greater than that between 1900 and 1940 - although that would have undermined his argument.

... The programme failed to point out that scientists had now explained the period of "global cooling" between 1940 and 1970. It was caused by industrial emissions of sulphate pollutants, which tend to reflect sunlight. Subsequent clean-air laws have cleared up some of this pollution, revealing the true scale of global warming - a point that the film failed to mention.

Other graphs used in the film contained known errors, notably the graph of sunspot activity. Mr Durkin used data on solar cycle lengths which were first published in 1991 despite a corrected version being available - but again the corrected version would not have supported his argument."

This is what the graphs should look like.

"Al Gore has an investment, possibly a conflict of interest in the "carbon trading" game. Gore is a co-founder of Generation Investment Management LLP, and we learn that:

"As an Associate member of the Chicago Climate Exchange, Generation [Gore's firm] has made a legally binding commitment to purchase Carbon Financial Instruments (CFIs) sufficient to 100% offset the greenhouse gas emissions caused annually by our firm's electricity use and business travel for the period 2005-2010." --Generation Investment Management LLP website

Albert Gore has a responsibility to answer these charges, and to prove the former scenario, if he is going to go to congress and give his seal of approval to building new nuclear power plants as a response to this purported carbon dioxide "pollution" problem."

Is Al Gore conducting climate studies and writing scientific reports? Is Al Gore even influencing climate reports at all? No. He is simply a spokesperson.

Besides, I thought you were focusing on the science, not the personalities.

"Professor Ball states that CO2 is only 0.54* percent of the atmosphere. All human contributions of CO2 combined remain a small fraction of that amount. It's time we got to the actual truth, no matter to whom it is "inconvenient."

I do not know if the '.54' figure is exact, but it is indeed true and well-understood that CO2 makes up only a very small fraction of the atmosphere. But this certainly does not deem the gas irrelevant, as the atmosphere is regulated by an extremely delicate natural balance of gaseous exchanges, largely based on the fractional (but not certainly not insignificant) amount of carbon dioxide.

Your second statement is simply incorrect. As Real Climate notes, "Over the last 150 years, carbon dioxide (CO2) concentrations have risen from 280 to nearly 380 parts per million (ppm). The fact that this is due virtually entirely to human activities is so well established that one rarely sees it questioned. Yet it is quite reasonable to ask how we know this." Read on for the explanation.

"The oceans are described as being reservoirs of CO2 gas, and their role depends upon the water's temperature. In hot waters CO2 is emitted (raising CO2 levels in the atmosphere), and in cold waters CO2 is absorbed (lowering CO2 levels in the atmosphere).

"If you heat the surface of the ocean it tends to emit carbon dioxide. Similarly if you cool the ocean surface the ocean can dissolve more carbon dioxide." --Carl Wunsch, Professor of Oceanography, MIT

... "People say, 'Oh I see the ocean doing this last year, that means that something changed in the atmosphere last year.' And this is not necessarily true at all. In fact it's actually quite unlikely because it can take hundreds to thousands of years for the deep ocean to respond to forces and changes that are taking place at the surface." --Carl Wunsch, Professor of Oceanography, MIT"

This is all true, but who is Carl Wunsch?

Apparently, he isn't too happy with the way he was portrayed in the film. As The Independent reported:

"...the programme - and the channel - is facing a serious challenge to its own credibility after one of the most distinguished scientists that it featured said his views had been "grossly distorted" by the film, and made it clear that he believed human pollution did warm the climate.

Professor Carl Wunsch, professor of physical oceanography at the Massachusetts Institute of Technology said he had been "completely misrepresented" by the programme, and "totally misled" on its content. ...

Professor Wunsch said: "I am angry because they completely misrepresented me. My views were distorted by the context in which they placed them. I was misled as to what it was going to be about. ... If they had told me even the title of the programme, I would have absolutely refused to be on it. I am the one who has been swindled."

...He said he believes it is "an almost inescapable conclusion" that "if man adds excess CO2 to the atmosphere, the climate will warm".

He went on: "The movie was terrible propaganda. It is characteristic of propaganda that you take an area where there is legitimate dispute and you claim straight out that people who disagree with you are swindlers. That is what the film does in any area where some things are subject to argument.""

I guess he wasn't on the Exxon payroll, huh?

"This process can take centuries and even millenia to occur. The oceans respond very slowly to changes in atmospheric temperature."

So if it takes "centuries and even millennia" for the oceans to respond to temperature changes in the atmosphere, then why are CO2 levels and temperature increases coinciding in the present? Obviously the CO2 is not, as you claim, coming from the oceans as part of a natural cycle. It is being emitted by human beings in the form of burned fossil fuels, as confirmed by isotopic analysis.

"Professor Frederick Seitz, the former head of the U.S. National Academy of Sciences, complained that the UN International Panel on Climate Change (IPCC) had altered its report by deleting dissenting views, and it released a version that was not approved by the scientists listed on the report."

According to The Los Angeles Times:

"A new global warming report issued Friday by the United Nations paints a near-apocalyptic vision of Earth's future: hundreds of millions of people short of water, extreme food shortages in Africa, a landscape ravaged by floods and millions of species sentenced to extinction. Despite its harsh vision, the report was quickly criticized by some scientists who said its findings were watered down at the last minute by governments seeking to deflect calls for action."

While you speculate about Al Gore and his conflicts of interest, you completely overlook the fact the Mr. Frederick Seitz, whose claims you are recycling, is an front-man for Big Oil.

Seitz is Chairman of the Science and Environmental Policy Project, funded by Exxon Mobil. He is also Chairman Emeritus at George Marshall Institute, funded by Exxon Mobil. He also serves on the board of the Committee for a Constructive Tomorrow, funded by Exxon Mobil. He also served on the Science Advisory Board at the Advancement of Sound Science Coalition, funded by...take a wild guess...Exxon Mobil.

What were you saying about Al Gore's CFIs again?

"In "How Biofuels Could Starve the Poor", Professors C. Ford Runge and Benjamin Senauer of the University of Minnesota study the massive changes going on today in the ethanol industry. Corn and sugar have long been subsidized by the federal government, leading to problems like overproduction and finding ever more ways to put corn oil and sugar into our diets.

Capitlizing on the existing taxpayer subsidy model, agribusiness is set to expand into an agri/energy sector. This will use up valuable and finite farmland/topsoil to be burned in automobiles, instead of eaten by humans.

These policies are already raising the prices of grains worldwide. The potential for starvation in poor populations is real and now more precarious."


Finally, something I agree with completely.

We are literally starving the poor to feed our cars. And ethanol doesn't reduce CO2 emissions, nor does it reduce our dependency on fossil fuels. It is an unacceptable, counterproductive solution.

I look forward to your response.


Devlin Buckley
The American Monitor

Your first response was as follows:

Can you prove that the film used fraudulent data to promote a lie?

Professor Clark sent me an article from GeoScience Canada

(attached), with sun data up to 2003, which states:

"Moreover, inferred and direct observational data of Total Solar Irradiance (TSI) flux yield a record that can explain 80% of the variance in the centennial temperature trend (Foukal, 2002). Therefore, celestial phenomena may have been therefore the principal driving factor of climate variability and global temperature even in the recent past."