X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00 autolearn=ham version=3.2.0-r431796 Sender: -2.6 (spamval) -- NONE Return-Path: Received: from newman.eecs.umich.edu (newman.eecs.umich.edu [141.213.4.11]) by boston.eecs.umich.edu (8.12.10/8.13.0) with ESMTP id k9OHkanw012035 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Tue, 24 Oct 2006 13:46:36 -0400 Received: from madman.mr.itd.umich.edu (madman.mr.itd.umich.edu [141.211.14.75]) by newman.eecs.umich.edu (8.13.8/8.13.6) with ESMTP id k9OHkVlK014474; Tue, 24 Oct 2006 13:46:32 -0400 Received: FROM tombraider.mr.itd.umich.edu (smtp.mail.umich.edu [141.211.93.161]) BY madman.mr.itd.umich.edu ID 453E5171.1B4E9.1859 ; 24 Oct 2006 13:46:25 -0400 Received: FROM [192.168.1.114] (Unknown [64.9.221.37]) BY tombraider.mr.itd.umich.edu ID 453E5134.68D67.32754 ; 24 Oct 2006 13:45:24 -0400 Mime-Version: 1.0 (Apple Message framework v624) In-Reply-To: <1161707516.1283.95.camel Æ localhost.localdomain> References: <1161707516.1283.95.camel Æ localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Message-Id: X-Mailer: Apple Mail (2.624) X-Spam-Checker-Version: SpamAssassin 3.2.0-r431796 (2006-08-16) on newman.eecs.umich.edu X-Virus-Scan: : UVSCAN at UoM/EECS Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by boston.eecs.umich.edu id k9OHkanw012035 Date: Tue, 24 Oct 2006 13:46:12 -0400 To: improvetheworld Æ umich.edu From: Dave Morris Subject: Re: Global Warming Status: RO X-Status: X-Keywords: X-UID: 814 Indeed, these are very good points, and perhaps the one I find most compelling is the argument about peer reviewed journalism. I have heard that the global warming problem in peer reviewed journals is pretty much universal and it's only in popular press that you see doubt. But even that fact I've only heard second and third hand, not through actual research, or with anyone presenting a study that was done to show it. What I don't want to do is trust Gore because he's a democrat, and not trust this guy because he's a republican. The web pages about how much global warming is a problem are often equally full of poor arguments and exaggerations, built from bits of truth as a premise. I too was laughing at his over extension of the green house analogy just so he could refute it. But he does, however, despite having screwed up the majority of his greenhouse arguments, have a valid point that the effect of CO2 may be logarithmic instead of linear or exponential because once a portion of the spectrum is blocked, blocking it additionally does not have additional effect. (does anyone have any direct refutation of this point?) What I'd like to have is a concise technical argument that I can present to skeptics that I encounter, without having to become a climatologist myself. How do you accurately move someone that CO2 in particular really is a problem, in a casual conversationally viable span of time? This is, of course, what the environmentalists try to present. But by oversimplification it because easy to refute, as the skeptics present their own oversimplifications instead. Maybe it's just not possible to have a simple argument. Or maybe CO2 really isn't the core of the problem maybe it's something else? I am an environmentalist by nature, I've heard enough to believe it, my next car will be a hybrid, I'm insulating my house, etc., - so my point in this is to acquire better arguments to use to persuade others, as I also know many skeptics, Republicans who buy that party line, and I need to win them over. Myself, I feel that Danny's maybe maybe not argument about New York ending up underwater is not compelling. (he's on the 39th floor anyway, so he's safe :-)) There are too many potential crisis that won't happen for us to dedicate tons of time and resources to all of them. We don't have enough resources, especially when you count how few resources we have the political will to actually spend. Especially when there are crisis that we do have hard data/facts about that don't have enough resources right now (our health care system, for example, and education). The speaker at my graduation, Dyson- a very serious scientist, argued just this point- that in the balance of where we should be spending our limited resources, the environment was currently getting more than it's proper share of focus. So to succeed the argument has to be compelling in a rather direct sense. Thanks for your thoughts! I appreciate the critical responses. Dave On Oct 24, 2006, at 12:31 PM, Erik Talvitie wrote: > Well I hope junkscience.com of all things isn't enough to shake your > faith in the scientific process. While it is absolutely important to > stay skeptical and critical, especially with regard to issues in which > so many people with lots of money and lots of power have a large stake, > there's no need to doubt everything you hear anywhere. > > First off, the beauty of science is its redundancy. Yes, any individual > piece of work might be exaggerated or overblown or biased or in the > worst case entirely fabricated, but there are so *many* people > reviewing > papers, repeating experiments, challenging assumptions, and so on that > overall, progress is made. So when there's a politically charged debate > over a scientific issue, I think the first thing to do is *go to the > actual science.* Scientific consensus is not *always* right (surely > lock-in on ridiculous conclusions has happened before and will happen > again) but it's sort of the best we've got and I think it's pretty > good. > Sometimes there isn't a consensus to fall back on, but in this case > we're lucky. I am not a climatologist, but as I understand it, the > debate over the existence/danger of rapid, global climate change and > its > causal link to human industrial activity stems largely from think tanks > and lobbying organizations (junkscience.com included, due to Steven > Milloy's affiliations) and less from within the climatological > community > itself. Indeed, it seems like all of the science Milloy references he > brings up to refute. One is then obligated to ask, where is the science > that *agrees* with him and how much of the literature is he *not* > refuting? > > Secondly, sometimes one can spot propaganda just from looking at it. In > the case of junkscience.com, one will usually find the articles filled > to the brim with straw man arguments, and this one is no exception. > Here > are some of my favorite claims that nobody makes that Milloy > successfully refutes: > > - Greenhouse gases have the same thermodynamical properties as sheets > of > glass > - Greenhouse gases do not allow heat to escape from the Earth's > atmosphere > - The greenhouse effect is categorically and objectively bad > - CO2 is categorically and objectively bad > - CO2 is the only greenhouse gas > - Average global temperature is the best metric for climate change > - (this one is my favorite) Greenhouse gas molecules absorb and then > re-emit the "same" energy, unchanged > > He also hijacks the term "climate change" and defines it as change of > the climate, something "the climate is always doing," and something > that > is "outside the realm of anthropogenic (manmade) effects," not > acknowledging that "climate change" is used by the scientific community > as a term of art, a shortening for catastrophic or rapid climate > change. > Using straw-men like this allows Milloy to make misleading statements > like "Greenhouse gases therefore do not trap heat" and undermines the > scientific discussion by muddying the meaning of terms. When I see this > much logical fallacy and obfuscation in an article, I'm significantly > less inclined to trust the more technical conclusions to be > well-founded > or well-researched. > > So, in short, I think there *are* things you can trust and conversely I > think it is possible to spot dubious claims that one should at least > corroborate with some auxiliary reading if not totally ignore. > Personally, I'm more inclined to trust articles that have a broad, > deep, > and clearly presented list of references that demonstrates support in > and connection to legitimate scientific literature and that contain > clear, well-presented, and logically sound arguments. Even better is > when the article appears in a publication that is either peer-reviewed > or that is otherwise under intense scrutiny (like high circulation, > well-reputed magazines/newspapers, etc.) I've never seen anything on > junkscience.com that met any of those criteria for me. In fact, I'll > even go so far as to say that I believe junkscience.com and > publications > like it exist expressly to *create* doubts like those you expressed, > rather than to create understanding or spread knowledge. They *want* to > create the impression that all sources of information are equally > informative (or uninformative) and that's just not true. There is a > range of legitimacy and it's important that we retain our ability (and > our trust in our ability) to perceive it. > > Well I wrote kind of a lot -- much more than I intended. Hopefully I've > addressed your conundrum at least a little bit, though. > > Erik > > On Tue, 2006-10-24 at 09:40 -0400, Dave Morris wrote: >> http://www.junkscience.com/Greenhouse/ >> >> Some rather compelling arguments that maybe we're focusing our efforts >> on the wrong problems, or at the very least CO2 is a problem for >> reasons other than what everyone has been telling us it's a problem >> for. >> >> Kind of makes you doubt everything you hear anywhere, since it's >> (including this) almost always presented by someone with such a strong >> agenda that they're really inventing science to support their >> arguments >> rather than the other way around. What's even more scary- I think >> about >> all the research I've done as a scientist and the Powerpoint >> presentations I've put together to try to make it look good... it's so >> easy to do. But you can't ignore everything you didn't do yourself and >> bury your head in the sand. Quite the conundrum. > > > > David P. Morris, PhD Senior Engineer, ElectroDynamic Applications, Inc. morris Æ edapplications.com, (734) 786-1434, fax: (734) 786-3235