tag:blogger.com,1999:blog-15005476.post4004821019980651691..comments2023-10-10T08:02:18.073-04:00Comments on Rationally Speaking: Rationally Speaking podcast: Michael Mann On The Science Of Climate ChangeUnknownnoreply@blogger.comBlogger9125tag:blogger.com,1999:blog-15005476.post-28159622744991567082013-10-12T09:51:51.940-04:002013-10-12T09:51:51.940-04:00Of course we're all complicit. A better quest...Of course we're all complicit. A better question might be, which big energy companies are the most advanced in moving away from fossil fuels? SAren't they the ones who will lead change? It will happen when it becomes profitable, yes?Cristahttps://www.blogger.com/profile/10059744018190135560noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-31102364801405910732013-10-07T10:23:25.045-04:002013-10-07T10:23:25.045-04:00Are you saying that C02 alone can cause harmful &q...Are you saying that C02 alone can cause harmful "climate change" without an intermediate step of warming? there has been no warming in the last 200 months. You use cars, heat your home, use electricity, use energy, eat food, produce C02 like other Americans. What do you want others to do that you are not doing? Don't be a hypocrite. I think your politics overrides your skepticism. A true skeptic recognizes AGW for what it really is, a money grab. John Bowleshttps://www.blogger.com/profile/08596778928978024642noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-30516484503274867652013-10-03T17:50:39.703-04:002013-10-03T17:50:39.703-04:00May I ask, since the climate changes all the time,...May I ask, since the climate changes all the time, and knowing what we do about predictability of future state in non-linear, complex systems; and since anything that is science must be testable, what would the climate look like without anthropogenic climate change?<br />Anonymoushttps://www.blogger.com/profile/15683694216533390204noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-91525815815646465122013-10-02T09:10:06.429-04:002013-10-02T09:10:06.429-04:00Fair enough; I will take more care in the use of t...Fair enough; I will take more care in the use of the word skepticism in the future. However, I think the demarcation between climate science and climate policy is often unclear, and further, that climate scientists too easily drift into policy questions and questions of human impact--as Mann did in this interview. I only meant skepticism in the sense of holding good scientists' feet to the fire a little more.<br /><br />I am not American, and do not live in the U.S., so that's not my reference point, but there are some state policies--such as carbon offsets in California. Furthermore, U.S. federal energy policy decisions (such as on the Keystone pipeline) are enormously important, but are often not well informed about the most basic science on the ground partly because of blind ideology--on both ends of the spectrum. I raise Keystone because it is a particularly good example (for reasons I can, but won't, elaborate on).<br /><br />As a final bit of context, every year I ask 4th year undergrads in environmental science whether or not it is OK to lie about the science in order to galvanize public opinion behind and environmental cause. The vast majority say yes. That makes me angry, and I blame Al Gore :)niwiyihttps://www.blogger.com/profile/14159177300860760145noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-51081448972680496372013-10-01T13:19:07.771-04:002013-10-01T13:19:07.771-04:00So lets do! What are you doing about it Massimo, I...So lets do! What are you doing about it Massimo, I think the solution is not up to the governments but rather up to you and me. What can or should we do? = = MJAhttps://www.blogger.com/profile/01897595473268353450noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-8607844021750185532013-10-01T08:29:46.444-04:002013-10-01T08:29:46.444-04:00I like to reserve the word "skepticism" ...I like to reserve the word "skepticism" for a limited range of applications. What you are referring to are standard discussions about policy, where all alternatives are reasonable or at least not wacko. Unlike the outright denial of climate change. <br /><br />Incidentally, of what "environmental policy" are you speaking of? The US, at the moment, simply doesn't have one, in large part because Republican wackos still insist that there is no problem to begin with.Anonymoushttps://www.blogger.com/profile/09099460671669064269noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-85456042334146219852013-09-30T15:13:24.662-04:002013-09-30T15:13:24.662-04:00You aren't sure about the need of the word ske...You aren't sure about the need of the word skeptic? Really? Bad policies abound (just one example, green energy subsidies in Western Europe and some parts of Canada) largely because of a blind and uncritical embracing of green policy. I think environmental policy desperately needs some truly skeptical (yet well meaning and human-centred) voices.<br /><br />Perhaps you can be more specific about the risk scenarios and probabilities you disagree with, but in any case, I gather that you do not disagree with the general problem of error propagation (which is what my example highlights)?niwiyihttps://www.blogger.com/profile/14159177300860760145noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-58662935667413474342013-09-30T14:07:27.234-04:002013-09-30T14:07:27.234-04:00niwiyi,
well, we can have a discussion about your...niwiyi,<br /><br />well, we can have a discussion about your estimated probabilities and risk scenarios (with which I disagree), but at least that would move the debate forward: from questioning the existence of anthropogenic climate change (which, at this point, is pretty silly) to what to do about it.<br /><br />But in the latter case I'm not sure why one would need to use the word "skeptic" at all. All sorts of possible policies should be on the table for discussion, with the decision making dependent on scientific, economic and social considerations.Anonymoushttps://www.blogger.com/profile/09099460671669064269noreply@blogger.comtag:blogger.com,1999:blog-15005476.post-41417457245784246172013-09-30T10:18:24.795-04:002013-09-30T10:18:24.795-04:00Great interview. But I have a comment.
I feel th...Great interview. But I have a comment.<br /><br />I feel there needs to be more skepticism injected into the climate change problem. There is an intelligent skeptical response to climate policy (and policy issues are an often implicit but ever-present component of climate science) that does not require questioning the current science of climate change. Consider the following:<br /><br />A. Probability that it is happening and is anthropogenic (according to the recent IPCC report, 0.95)<br /><br />B. Probability that it would have serious deliterious consequences that wouldn't have happend otherwise (unknown and loosely defined, but let's say 0.90)<br /><br />C. Probability that future mitigation will fail (also unknown, let's say 0.8)<br /><br />For climate change to justify a particular policy response (say, carbon tax), the product of A,B and C has to be high. Is 0.68 high? I guess high-ish. But I think the latter two probabilities could easily be overestimated here. If they were a little lower, the product of these probabilities drops. For example, an optimist might say there is a better than 50% chance that carbon sequestration technologies will work well in 20 years. If we make the 3rd term 0.5 then the product of A,B anc C is 0.43. Is this high enough to abandon all skeptical resistance to policy responses on climate change? Meh...<br /><br />Maybe the precautionary principle would still guide our hand because of the chance (even if it were small) of catastrophic disaster (avoiding the 'fragilities', as Nassim Taleb would put it). But this is precarious reasoning (lots of thoughtful work on this...). Furthermore, none of this takes into account the opportunity costs of 'doing something'; the resources spent on mitigation could be spent on something else that could be more immediately beneficial.<br /><br />In short, Massimo, I think you are right to keep your apartment...niwiyihttps://www.blogger.com/profile/14159177300860760145noreply@blogger.com