Comments Pete H has made

  • "difficult to ascertain"

    I posted the link so people can read it for themselves. I recommend that people always read and decide for themselves.  I should have posted the whole thing.

    The last paragraph states that "the AMO is probably a natural climate oscillation." It further states "...the climate swings of the AMO have alternately camouflaged and exaggerated the effects of global warming, and made attribution of global warming more difficult to ascertain."

    So I ask you, how in the heck do you show a link between hurricanes and global warming if the AMO is the only accurate predictor of hurricane frequency and intensity and its effects are such that they camouflage or exaggerate the effects of global warming?

    It is irresponsible to state "hurricanes are getting stronger - thanks to global warming." That theory simply isn't supportable at this time given what we know about the effect of the AMO on hurricanes and how little we really know about long term climate change.

    I guess "difficult to ascertain" means "proof of a link" to some folks.

    Here is that last paragraph:

    Instruments have observed AMO cycles only for the last 150 years, not long enough to conclusively answer this question. However, studies of paleoclimate proxies, such as tree rings and ice cores, have shown that oscillations similar to those observed instrumentally have been occurring for at least the last millennium. This is clearly longer than modern man has been affecting climate, so the AMO is probably a natural climate oscillation. In the 20th century, the climate swings of the AMO have alternately camouflaged and exaggerated the effects of global warming, and made attribution of global warming more difficult to ascertain.

    We do not talk -- we bludgeon one another with facts and theories gleaned from cursory readings of newspapers, magazines and digests. Henry Miller

    On Climate change is increasing the frequency of Category 5 storms posted 2 years, 2 months ago 7 Responses
  • Global Warming or the AMO?

    Maybe someday we will be able to link the sea surface temperatures to climate change, but for now the best science we have to explain ssts is the Atlantic Multidecadal Oscillation.

    Here is a link and a few select facts from an authoritative source.

    http://www.aoml.noaa.gov/phod/amo_faq.php

    What is the AMO?

    The AMO is an ongoing series of long-duration changes in the sea surface temperature of the North Atlantic Ocean, with cool and warm phases that may last for 20-40 years at a time and a difference of about 1°F between extremes. These changes are natural and have been occurring for at least the last 1,000 years.

    How much of the Atlantic are we talking about?

    Most of the Atlantic between the equator and Greenland changes in unison. Some area of the North Pacific also seem to be affected.

    What phase are we in right now?

    Since the mid-1990s we have been in a warm phase.

    What are the impacts of the AMO?

    The AMO has affected air temperatures and rainfall over much of the Northern Hemisphere, in particular, North America and Europe. It is associated with changes in the frequency of North American droughts and is reflected in the frequency of severe Atlantic hurricanes. It alternately obscures and exaggerates the global increase in temperatures due to human-induced global warming.

    How does the AMO affect rainfall and droughts?

    Recent research suggests that the AMO is related to the past occurrence of major droughts in the Midwest and the Southwest. When the AMO is in its warm phase, these droughts tend to be more frequent and/or severe (prolonged?). Vice-versa for negative AMO. Two of the most severe droughts of the 20th century occurred during the positive AMO between 1925 and 1965: The Dustbowl of the 1930s and the 1950s drought. Florida and the Pacific Northwest tend to be the opposite - warm AMO, more rainfall.

    How important is the AMO when it comes to hurricanes - in other words - is it one of the biggest drivers? Or Just a minor player?

    During warm phases of the AMO, the numbers of tropical storms that mature into severe hurricanes is much greater than during cool phases, at least twice as many. Since the AMO switched to its warm phase around 1995, severe hurricanes have become much more frequent and this has led to a crisis in the insurance industry.

    Does the AMO influence the intensity or the frequency of hurricanes (which)?

    The frequency of weak-category storms - tropical storms and weak hurricanes - is not much affected by the AMO. However, the number of weak storms that mature into major hurricanes is noticeably increased. Thus, the intensity is affected, but, clearly, the frequency of major hurricanes is also affected. In that sense, it is difficult to discriminate between frequency and intensity and the distinction becomes somewhat meaningless.

    If the AMO (in part) affects hurricanes - what drives the AMO?

    Models of the ocean and atmosphere that interact with each other indicate that the AMO cycle involves changes in the south-to-north circulation and overturning of water and heat in the Atlantic Ocean. This is the same circulation that we think weakens during ice ages, but in the case of the AMO the changes in circulation are much more subtle than those of the ice ages. The warm Gulf Stream current off the east coast of the United States is part of the Atlantic overturning circulation. When the overturning circulation decreases, the North Atlantic temperatures become cooler.On Climate change is increasing the frequency of Category 5 storms posted 2 years, 2 months ago 7 Responses

  • Some of us post on this blog

    You don't need to look to "conservative blogs" you can look at your own blog (liberal? environmentalist? progressive? smug?) to see that some of us conservatives are skeptical AND informed.

    The "evolution vs. creationism" argument is tired and frankly doesn't get the job done.

    "Faith" in the GCMs and thoughtless acceptance of one scenario (20 foot sea rise! really?) is hardly science, a consensus or anything remotely like it.

    Here is a link, but beware - I don't bash Gore enough for you to dismiss me out of hand...

    http://gristmill.grist.org/story/2006/12/22/224450/84#19On Wherein we puzzle through the truthiness posted 2 years, 8 months ago 4 Responses

  • Coal Fired Power Plants and SUVs?

    So let me see if I have this straight,

    If coal fired power plants and SUVs pump out CO2, what do gas fired power plants and biodiesel VWs pump out?

    Cotton candy and hugs?

    I won't defend Coulter - she is an idiot. Her only goal is to "cause controversy" so she can sell more books.

    We should all agree that clearly Al Gore is a hypocrite of the highest order.  His profligate lifestyle and the fiction of "carbon offsets" are just too silly to defend.
    On My aborted adventure on Fox posted 2 years, 9 months ago 11 Responses

  • Still flogging that dead horse...

    While I may be unable to convince Coby that my "feigned inability to understand" is actually a genuine concern that the proxy data is being oversold, maybe some of you will enjoy this post. (For the rest of you I apologize, whilst I flog this dead horse just ONE MORE TIME).

    Here is a quick link for your reading pleasure, along with the "discussion" regarding the time lag. Please note that the source is realclimate.org, which is the ultimate source of the info on the other links that have been posted.

    This link discusses the 800 year lag and answers that pesky question: "which came first?" (Oops, we can't say that) how about: "what is significant?"

    http://www.realclimate.org/index.php?p=13

    Begin quote:

    Does this prove that CO2 doesn't cause global warming? The answer is no.

    The reason has to do with the fact that the warmings take about 5000 years to be complete. The lag is only 800 years. All that the lag shows is that CO2 did not cause the first 800 years of warming, out of the 5000 year trend. The other 4200 years of warming could in fact have been caused by CO2, as far as we can tell from this ice core data.

    The 4200 years of warming make up about 5/6 of the total warming. So CO2 could have caused the last 5/6 of the warming, but could not have caused the first 1/6 of the warming.

    End quote

    Yes, you read that correctly.  Better yet, link to it and read it for yourself in context.

    So "All that the lag shows is that CO2 DID NOT CAUSE THE FIRST 800 YEARS OF WARMING, out of the 5000 year trend."

    That's all?  What about the next 4,200 years?

    Well, "The other 4200 years of warming COULD in fact have been caused by CO2, AS FAR AS WE CAN TELL from this ice core data."

    So while it is clearly FACT that the first 800 years COULD NOT have been caused by increases in CO2, it is clearly A POSSIBILITY that the next 4,200 years MIGHT have been.  

    (Of course if the increased temperatures are causing the increase in CO2, then you might ask what caused the first 800 years of warming and why COULDN'T that POSSIBLY have continued to cause significant warming during the next 4,200 years?)

    Again, I am not a heretic in this new "global warming" religion being created by the true believers. (Dr. Hanson and Al Gore be praised!) Clearly the physics and even possibly some of the recent observations tell us that the greenhouse gases play a part and can be a significant forcing.  The problem is rather than have an honest discussion which includes all of the COULDS, MIGHT HAVES, AS FAR AS WE CAN TELLS, we are told the proxy data clearly PROVES that IS WHAT HAPPENED in the past.

    Those very tortured sentences could have been written something like this:

    "What the lag shows is that CO2 did not cause the first 800 years of warming. It is certainly possible that the other 4200 years of warming could have been significantly affected by the increasing CO2, as far as we can tell from this ice core data and our current theories on global climate change."

    "So while it is clear that CO2 could not have caused the first 1/6 of the warming, it could have played a significant part during the last 5/6 of the warming."

    Of course that second sentence is completely unnecessary, but the authors of the original link felt the need to include it, POSSIBLY to lend some weight to their theory.  Clearly fractions are powerful joss when demonstrating how 5/6 of the time something COULD POSSIBLY HAVE HAPPENED, AS FAR AS WE CAN TELL FROM THE ICE CORE DATA. (Somehow 83.3% just didn't have the POP of 5/6).

    It's always a pleasure boys.On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Not familar with new studies I'll check it out

    On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Not for arbitrary restrictions or cap & trade

    If you say "charismatic" and "great salesmen" - naturally Al Gore springs to mind...

    If we want to have a comprehensive discussion that included integral fast reactors and other feasible ways to substantially reduce GHGs - no problem. After all, the GCMs tell us we need to reduce the GHGs or we will all die in a massive flood (now who is the Jesus freak - better build an ark to deal with those 20' sea level changes when the polar ice caps melt and the polar bears are forced to eat the cast of Lost as they film in Hawaii).

    The arbitrariness (is that even a word?) of Kyoto and the documented environmental damage that is currently the DIRECT result of the Kyoto cap & trade shenanigans - should make everyone question the wisdom of that type of strategy.

    If the problem is so severe, why does Al own 4 houses and fly around willy-nilly on his private jet telling people to change their light bulbs and telecommute (I know, I know, he has a corporation paying to pollute, er I mean paying for "carbon credits" to offset his Bigfoot-size carbon footprint).

    I question the economic costs of arbitrary emissions caps and whether they are worth it. We know the money could be spent on other feasible large scale power generation technologies, or at a minimum those massive expenditures could be used to reduce the "real" pollution that is occurring.  I know it is nice to think if the US joins Kyoto then India and China will stop building dirty coal plants.  However, the reality is we are seeing billions of dollars being wasted and result is an incentive for the Chinese to build more pollution spewing refrigerant plants etc...

    It is nice to do something that "feels good" but I am more in favor of doing something that makes sense and has an effect, a positive effect (unlike Kyoto).
    On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Too much time on my hands

    I certainly do have too much time on my hands - vacation to burn because I can't roll it over to next year is the primary cause.

    For at least the last 15 years I have been following this topic - because I find it interesting.  Yes, I have spent more than a few hours a week following the global warming ballyhoo and have a Google alert with the global warming stories emailed to me daily. I keep up with Nature and some of the other publications and abstracts/papers that are available to the public.

    No, I am not paid by anyone to air my opinions.

    As it was stated before I am simply "some random internet dude" and I do apologize to amazingdrx for omitting the Y in his "heheheY," my bad. I am not a Jesus freak, although that might make it easier for everyone. My undergrad degree was in geology, but times change and people don't (or is it the other way around). I currently pay the bills with a technical sales job that has absolutely nothing to do with the oil, gas, power, automotive industries, conservative think tanks nor the vast right wing conspiracy (please, run Hillary run!!!).  I will be pretty pissed off if I find that people are being paid to rant when I am doing it for free!  To the conservative think tank schills out there - hook me up. I could use a new Harley, er... I mean Prius.

    To focus in on the one small area you cited - I am NOT asserting that the only good CO2 data is from the last 50 years - only that the accurate OBSERVATIONAL record begins there.  Yes, there are lots of good "proxy" records out there and probably the Vostok Ice Core data is the most widely cited and commented on.  Yes, there are also ocean sediments, fossil records etc...  Proxy data is a sticky wicket and there has to be a way to integrate it (being that so many effects are limited geographically).  I get all that and I am "on board."

    When discussing the proxy record don't you find it curious that the paleoclimatologists (a fancy new made up word for geologists that discuss the environment at the time the fossils/sediments were laid down) and other scientists use caution when making statements?

    e.g. "However, because of the difficulty in precisely dating the air and water (ice) samples, it is still unknown whether GTG concentration increases precede and cause temperature increases, or vice versa--or whether they increase synchronously.  It's also unknown how much of the historical temperature changes have been due to GTGs, and how much has been due to orbital forcing, ie, increases in solar radiation, or perhaps long-term shifts in ocean circulation."

    A statement like that is ignored in favor of the "Al Gore" school of "scare 'em and sell 'em."  Even Robert Hanson has expressed concern that the issue has been oversold (and he should know!).  Of course in 2001 Dr. Hanson felt the warming would be modest and predictable and certainly nothing like the extreme scenarios being touted by the "Inconvenient Truth" squads.

    The current "CO2 is the primary forcing" does not come from the proxy data - but rather from the observational data and the GCMs.

    The current temperature record (from roughly 1860 to present day) shows what?

    1860-1940: significant warming - but no indication that atmospheric CO2 has risen significantly or that it is a "primary forcing."

    1940-1979: moderate cooling - but here the claim is that the CO2 forcing was "much less significant" and was "overwhelmed by other factors..."

    1980 to present: warming accompanied by increasing atmospheric CO2 levels, with periods of cooling (particulates from Mt Pinatubo primarily).

    So here is my "skeptics" point of view:

    The proxy data shows some correlation between global temperature swings and changes in CO2 levels. Despite the fact that the proxy record clearly shows the temperature variations precede the changes in CO2, it needs "interpretation." The "lesson learned" seems to be "well it could have happened the other way around - maybe we just aren't accurate enough to know." Or if you prefer - "the warming caused the increase in gases which then acted as a forcing causing more warming."

    The observational data "supporting the CO2 forcing" is spotty from 1860-1979 and reasonably solid for the last 26 years (so long as the Mt Pinatubo and other mitigating factors are taken into account).

    So what we are left with is the General Circulation Models.  So we take a best guess computer model and feed it 35 different levels of anthropogenic emissions tuned to 7 different sensitivities and viola' - scenarios that show everything from

    "moderate and predictable"

    to

    "extreme - quick, somebody make a PowerPoint presentation with PhotoShopped satellite photos."

    It's all good boys.  Having the discussion should "sharpen the sword." I think we all need to fine tune the rhetoric and present an accurate picture. If I am not being accurate, then by all means correct me (but please no more links to other parts of this blog).

    Back to work in a few days, so hit me while I still have too much time on my hands.
    On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Ad Hominem - don't leave home without it!

    "But looking to authority is a good way for lay people to deal with someone like Pete H who does not address one issue at a time, who erects strawmen, who dodges the substantive points in favour of the argumentative ones and who thinks he can rattle off a dozen trivially obvious errors and omissions that have escaped the notice of an entire field of science."

    "Someone like Pete H?" Really?

    I keep trying to stay on one issue, specifically the link between atmospheric CO2 and global climate change.  That topic seems to break down into proxy data and current observations.

    Please take a moment to review for me the substantive points that were handed to me on a silver platter regarding the proxy data that I have chosen to willfully ignore. I must have missed them while creating my army of strawmen.

    Regarding the current observations (sorry if my Gatling gun is firing too quickly for you)  I see in the post that you reference you dismiss the complications with current obervations with this statement:

    "The situation is similar to the cooling seen in the '40s and '50s. During this period, the CO2 warming (a smaller forcing at the time) was temporarily overwhelmed by other factors, perhaps foremost among them an increase in human particulates and aerosol pollution."

    Wow - "temporarily overwhelmed by other factors, perhaps foremost among them an increase in human particulates and aerosol pollution."

    I must have been temporarily overwhelmed by the facts or blinded by the silver platter. Either way, you sure know how to talk to a skeptic.

    Even in my own argumentative, ignorant and confusing "Gatling gun" post I'll give you the last word. Did you expect that from a "character like me?" Long live argument ad hominem!

    "...characters like Pete H have learned enough about the issue to bring up its complications and surprises but stopped short of understanding the explanations and the real implications of the uncertainties.  That is ignorance."On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Wow - you got me

    Here I thought this thread discussed how "global warming believers" can talk to "global warming skeptics."  Specifically, this thread was supposed to address how to discuss the connection between atmospheric CO2 and global temperatures.

    LegumeSam: You are absolutely right - we have 420,000 years of data - your link to the Vostok Ice Core data was spot on.  This data clearly "established a firm correlation between temperature and CO2 levels."  Of course if you actually look at the data you clearly see temperature changes PRECEDE the CO2 level changes.  So thanks for proving my point regarding the proxy data.  Note the discussion often contains some variation of the following statement:

    "However, because of the difficulty in precisely dating the air and water (ice) samples, it is still unknown whether GTG concentration increases precede and cause temperature increases, or vice versa--or whether they increase synchronously.  It's also unknown how much of the historical temperature changes have been due to GTGs, and how much has been due to orbital forcing, ie, increases in solar radiation, or perhaps long-term shifts in ocean circulation."

    It appears that the way to talk to a global warming skeptic is to claim that the proxy data clearly and unequivocally supports your belief.  Fair enough, but this may prove unsatisfying to those of you who actually read the data for yourselves.

    If you begin to have some doubts about the "absolute certainty" of the proxy data supporting this theory (CO2 as the primary driver in global climate change) the next phase is an "Appeal to Authority."

    You know this is where the "scientific consensus" is trotted out. Although I notice it now comes with some additional conditions - now it isn't just a "scientific consensus" but rather "the widely held consensus of the relevant scientific community."  So if you are a climatologist or a hurricane expert, or someone who isn't "a believer" you may just be irrelevant.  Wow, a pretty interesting way to conduct scientific inquiry.  Funny, but when you actually read the peer reviewed research it is full of cautious statements like "we should expect to find..." "In the future..."  "It is still unclear to what extent the..." "The current gcms predict..."  So if I am still a little skeptical - it is because of the peer reviewed research not despite it.

    As a quick example, note the tenuous link asserted between hurricanes and global warming in the "peer reviewed research" and contrast it with the public statements made by those same researchers.  Oh, sorry David, I didn't mean to bring up another non- "CO2 is the driver" example on this blog thread.  Let's stick to that "firmly established correlation based on 420,000 years" or better yet that "widely held consensus of the relevant scientific community."

    It also becomes apparent that if the "appeal to authority" isn't strong enough by itself, a little "argument ad hominem" is added for good measure. You know, this is where you not only claim the skeptic is too stupid to believe the "consensus" but is also possibly a "Jesus freak" (hat tip to amazingdrx) or "just some random internet dude" (hat tip to David Roberts).

    Fair enough boys. Forgive me for questioning your beliefs.

    Despite my scientific training and my reading of most the available published research on this topic, I must just be "blinded by Jesus" or maybe "just too stupid to understand the science" - be it the proxy data or the current observations.

    Here is how you can talk to a skeptic and spare yourself the trouble of questioning your own beliefs:

    "Trust the GCMs and believe the consensus."

    If that doesn't work try:

    "I bet you are a random internet Jesus freak hehehe"

    Thanks for the posts it has been "enlightening."
    On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • 650,000 years of accurate CO2 data? Uh ... okay.

    Amazing-drx - I am glad I amuse you.

    So I take it you are "on-board" with the proxy data?  Now we can have the discussion, which came first - the atmospheric warming or the increased greenhouse gases. If you want to hitch your wagon to the proxy data, then you have to give up your "greenhouse gases are the main climate forcing" argument (or at a minimum do some "that was then - this is now" fancy dancing).

    Somehow this thread was supposed to teach "the believers" how to talk to a skeptic about CO2 being the main forcing in global climate change.

    Well, here I am.  Let's hear it.

    I have agreement that the proxy records clearly show temperature increases preceded greenhouse gas increases.  That doesn't exactly prove your point.  Somehow it seems to be more significant to you that the increased greenhouse gases THEN became a forcing that accompanied future increases in temperature - fair enough.

    Now we switch to the current records.  How long do we have accurate temperature and CO2 data?  You tell me Mr. Amazing.  The most accurate data for greenhouse gases that everyone seems to be using is from Mauna Loa.  Do you have a different source of accurately measured atmospheric CO2? How about for "global temperatures?"  Please let us know.

    We haven't even discussed how the response of temperature to increasing CO2 is logarithmic. Or any of a whole other host of issues with some of the current theories and GCMs.

    So if we want to discuss the current warming trend, let's hear it.  How can we look at the recent, accurate CO2 and temperature data and make our case?

    Cooling for several decades while CO2 increased exponentially?  Not a problem you say? Look at the long term? Well, that doesn't help either, it seems we had some serious warming when our atmospheric CO2 wasn't increasing exponentially, then cooling when it was, then warming when it was - darn. The proxy data? No that didn't work for us.  Maybe we can find that link when we look at the ...  

    I know - the GCMs!

    Climate gods be praised - we have our proof.

    I guess you convinced me.

    Now what about those pesky radiosonde readings that didn't show an increase in the atmospheric temperatures even though the GCMs said they should ...  I know - let's "time correct" them so they show some warming. Whew, I'm glad we got one sorted out.

    Now what about those cooling oceans...  I know let's talk about the multi-decadal oscillation, but remember, that is only when we need to dismiss a cooling trend, if it is warming - it's proof of good old manmade greenhouse gas global warming.

    And on and on it goes.

    Always fun gentlemen.On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Reduced Enough It Could Stop Climate Change?

    Wow, I am flabbergasted.

    The thought that we can "stop climate change" is so far removed from reality that it boggles the mind.

    Haven't we already agreed upon the pre-anthro emissions climate change?  Temperatures rise - then greenhouse gases rise - then temperatures rise etc...

    Now the goal is to "control climate change?"

    Good luck with that.

    I am all for reduced pollution.  I am all for common sense solutions and realistic ways of coping with climate change.  If we are serious about reducing CO2 we need to have a serious discussion about nuclear power (especially integral fast reactors),

    We need to discuss how slow and predictable (and inevitable) sea level change will be addressed in countries all over the world.

    What I am not for is inciting fear based on exaggerated scenarios in order to enact legislation that does nothing but redistribute wealth and exacerbate the problem, e.g. Kyoto.

    Getting back to the original point - we have about 160 years of accurate temperature records, roughly 47 years of actual atmospheric CO2 observations and some scenarios kicked out by a GCM. To think we really understand how climate change works at this point is pretty presumptive.  We are still trying to sort out why oceans were cooling when they were supposed to be warming and why global temperatures were cooling while atmospheric CO2 was rising.  Most climate change scientists aren't anywhere near as "sure about global warming" as the alarmists.

    Some of us are looking for more science and less fear mongering.  Every day you can find at least 10 stories that talk about polar bear-jellyfish-bird migration-tropical diseases-ice cap melting-sky is falling-Katrina was due to global warming etc...

    Some common sense and rational thought is all I am looking for.

    Thanks for the posts!On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • No Comment on the NY Times Article?

    Why aren't we discussing the actual effects of the Kyoto protocol?

    Why is "cap and trade" a bad idea? Well, let's see, rich countries paying poor countries for the right to pollute. It would seem like an economic incentive for both countries to continue business as usual. The fact that there is a "carbon market" is beyond absurd.  The "carbon trading market" is failing and the Chinese are increasing "real" pollution as a result of these billion dollar deals.  These are two examples of the failure of this policy. I would like people to actually think before having a knee-jerk reaction and trying to legislate feel-good policies.

    What is the goal?  How can it be reached?  Does it make sense?  We should be able to answer those questions before throwing our hat into the emissions cap and trade ring.On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Which came first the chicken or the egg?

    I have read most of your blog postings and just re-read the ones you linked.

    So here goes again:

    clearly you agree that historically temperature rises preceded increases in greenhouse gases and then there was additional warming and additional increases in gases (forcings - I get it). Of course we both agree this happened as a result of natural processes.

    What I find interesting is that now we have widespread changes in land usage and increases in temperature - both of which significantly affect the carbon cycle.

    Yes, it is true that we are also increasing our own emissions of greenhouse gases - but relative to the amount of carbon in play in the carbon cycle, can you honestly say that a modest reduction in carbon dioxide emissions will have any discernable effect on global climate change?

    That is the important question.  Now before I hear the "it's the old two step, it's doesn't matter or it's too late..."  Honestly answer my question. What will be the net effect of a Kyoto like reduction in emissions? (diregarding the environmental damage being done in name of "cap and trade")On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Even Further Proof?

    So let me understand the "anthropogenic CO2 is the driving force behind global warming" argument.  The carbon cycle involves roughly 210 gigatonnes of carbon equivalent. Anthropogenic emissions are less than 7 gTC.  Natural increases in temperature will release more carbon (and don't forget about methane).

    Atmospheric CO2 has been increasing at roughly 0.5 - 2 ppm for the last 47 years (from Mauna Loa observatory data. In 1959 it was 315 ppm.  In 2006 it was 380 ppm. From 1959 to 1979 (20 of the 47 years) we saw moderate cooling. For the last 27 years we have seen warming.  Of course it is possible that increases in temperature has resulted in increased carbon dioxide concentrations, but that was just what the proxy data showed - so of course we don't want to rely on that data. Back to the GCMs people!

    But what about methane?  Methane is 20-30% more effective as a greenhouse gas than CO2. Increases in atmospheric methane concentrations trail increasing temperatures (much as historic CO2 has followed increased temperatures, if the proxy records are to be believed).  70% of the methane produced in the "global methane cycle" is anthropogenic (whereas less than 4% of the carbon in the global carbon cycle is anthropogenic, approximately 7 gigatonnes out of 210).

    Only 20% of the anthropogenic methane comes from power generation (about the same amount comes from domesticated ruminants) the rest is caused by rice fields, biomass burning, landfills and waste disposal.

    So leaving aside the fact that the temperature changes have preceded the atmospheric greenhouse gas concentrations, why are we so worried about CO2 when methane is so much more effective as a greenhouse gas and anthropogenic methane is 70% of the methane cycle?

    As far as nature vs. anthropogenic:  new analysis confirms that the Arctic Ocean warmed remarkably 55 million years ago, which is when many scientists say the extraordinary planetwide warm-up (the Paleocene Eocene Thermal Maximum) must have been caused by an enormous outburst of heat-trapping, or greenhouse, gases like methane and carbon dioxide. But no one has found a clear cause for the gas discharge.

    I know, it's back to the GCMs.  A computer model that was fed 35 different levels of anthropogenic emissions tuned to 7 different sensitivities can't be wrong.

    Let's try not to think about nature and the historical "massive outbursts of greenhouse gases like methane and carbon dioxide."  I am sure a 20% reduction in our anthropogenic carbon dioxide will be the answer.

    We should be glad that we didn't sign on to Kyoto, lest we be tempted to get in on some of that fabulous "cap and trade" cash that is causing more environmental damage.

    http://www.nytimes.com/2006/12/21/business/21pollute.html...

    Always enjoyable exchanging ideas, keep 'em coming.
    On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses

  • Objection Causation Usually Precedes Effects

    Coby Beck Posted:
    "Aside: It is usually interesting to ask just what observations or evidence your skeptic would consider "proof" that global warming is caused by rising CO2 levels. Don't be surprised if you get no answer!"

    Two quick observations:

    1. In the proxy data, increases in temperature often precede increases in atmospheric CO2 by decades and in one case by 800 years. So I guess the "correlation is not causation" is true enough.
    2. In recent history, we have seen both large increases in temperature prior to significant anthropogenic greenhouse gas emissions (roughly 1865-1940) as well as forty years of moderate cooling while anthropogenic greenhouse gas emissions were soaring (roughly 1940-1979).

    Relying on general circulation models and theories is fine and may even be science, but observation, interpretation and explanation are even better.  I believe it is legitimate to question "the precautionary principle." First we came up with a "best guess computer model." Then we fed that general circulation model 35 different levels of anthropogenic emissions tuned to 7 different sensitivities. Then we looked at the output and some of the resulting scenarios seemed to be extreme. Now we are ready to make public policy because we can't prove the computer model is wrong or that the extreme scenarios are impossible? That doesn't seem logical or scientific to me in the least.On There is no proof in science, but there are mountains of evidence posted 2 years, 11 months ago 78 Responses
  • lack of comments may indicate day jobs and kids

    and Halloween.

    The scale here is quite interesting. The deviations from the actual temperature records could not be contained on the graph. I can not post the graph in this comment box, so please take a look at:

    GLOBALLY AVERAGED DEVIATIONS FROM AVERAGE TEMPERATURE PLOTTED
    ON A SCALE RELEVANT TO THE INDIVIDUAL STATION DEVIATIONS
    Per Year from 1851 to 1984

    contained in the following link:

    http://www.ecoworld.com/home/articles2.cfm?tid=404On 'One record year is not global warming'--Luckily, there are plenty more years to consider posted 3 years, 1 month ago 19 Responses