Penn & Teller and Climate Change: How "Dumb" Is It to Say, "I Don't Know?"
Ronald Bailey | July 3, 2008, 5:01pm
On her Lab Notes blog Newsweek science columnist Sharon Begley recently took magician, skeptic, and long-time friend of reason, Penn Jillette to task for saying, "I don't know" in response to a question about what he thinks of global warming.

Both Begley and Jillette were participants at James Randi's gathering of skeptics, The Amazing Meeting 6, in Las Vegas last month. In her blog post "Penn & Teller, and Believing in Dumb Things," this is how Begley describes what happened:
Someone asked Penn whether he still believed that man-made climate change is bunk, as he has said more than once. Penn's basic answer was: I loathe everything about Al Gore, so since Gore has been crusading against climate change it must be garbage.
Now, Penn & Teller’s terrific “Bull****,” now beginning its sixth season on Showtime, has debunked psychics such as John Edward, feng shui, acupuncture and other forms of pseudoscience and the paranormal. But here was Penn, a great friend to the skeptic community, basically saying, don’t bother me with scientific evidence, I’m going to make up my mind about global warming based on my disdain for Al Gore. (Both Penn and Teller are well-known libertarians and supporters of the libertarian Cato Institute, which has been one of the leaders in spreading doubt about global warming.) Which just goes to show, not even the most hard-nosed empiricists and skeptics are immune from the power of emotion to make us believe stupid things.
In Rashomon fashion, Jillette offers a different take as he explains in an op/ed over at the Los Angeles Times today. According to Jillette:
During our loose Q&A period this year, someone asked us about global warming, or climate change, or however they're branding it now. Teller and I were both silent on stage for a bit too long, and then I said I didn't know.
I elaborated on "I don't know" quite a bit. I said that Al Gore was so annoying (that's scientifically provable, right?) that I really wanted to doubt anything he was hyping, but I just didn't know. I also emphasized that really smart friends, who knew a lot more than me, were convinced of global warming. I ended my long-winded rambling (I most often have a silent partner) very clearly with "I don't know." I did that because ... I don't know. Teller chimed in with something about Gore's selling of "indulgences" being BS, and then said he didn't know either. Penn & Teller don't know jack about global warming ... next question.
Jillette goes on to ask:
Is there no ignorance allowed on this one subject? ... There's a lot of evidence, but global warming encompasses a lot of complicated points: Is it happening? Did we cause it? Is it bad? Can we fix it? Is government-forced conservation the only way to fix it?
Is it happening? Did we cause it? Yes, the balance of the evidence is that it is happening. Is it bad? Relative to what? Can we fix it? Maybe. But at what's the best way to do so? Are immediate deep cuts in greenhouse gas emissions necessary? Some analysts don't think so. Government-forced conservation? Perhaps there is another way. Skepticism is certainly merited when it comes to proposals that aim to solve global warming.
Finally, is it OK to disdain Al Gore? Sure it is. But even an annoying self-important scold can be right sometimes.
Whole Jillette op/ed here.
P.S. Trying to put this blogospheric tempest in context, I did a desultory search for video of the TAM 6 session but couldn't find it. Can any H&R readers offer some help here?
Virgil | July 4, 2008, 11:48am | #
"He reasoned he wasn't special enough to be ANYWHERE special at any point in his life."
Wow. That is just really, really, REALLY crappy logic. Given that "special" (important, consequential, "big") things happen, obviously _someone_ is going to be around to see them. If everyone applied that logic I guess we could just conclude that nothing of any consequence will ever happen.
"The earth is 4.5 billion years old, and we as humans are lucky enough to be part of THE species that exists at the VERY time we gained the awesome power not only to destroy our planet..."
If you can't see that humans have a greater capacity to alter our environment (in potentially catastrophic ways, at least in the short- and mid-term) than virtually any other species that's existed on Earth, you haven't been paying much attention. I'm not sure how it qualifies as vanity to acknowledge that reality.
"...it is very likely that this climate and this planet will go on existing long after our pittance of an effect on this planet ends."
Obviously the planet will go on existing, and pretty much by definition some sort of climate will as well. You surely have to be aware that no one is talking about actually "destroying our planet," as you're implying; they're talking about altering it such a way that makes it much harder for humans (and other organisms) to live, or at least to have what we would consider an acceptable standard of living for ourselves.
"It almost makes environmentalism sound like...a religion."
Wow, how creative, substantive, and fair-minded! Denigrating a view you disagree with by comparing it ominously to "religion." You and Global Warming Investigator should get together and trade sheeple-themed witticisms; that seems to be the intellectual level you're working at.
Anthony | July 4, 2008, 2:16pm | #
Virgil,
I wasn't arguing that NOTHING of consequence ever happens, I argued that it is rare when something of consequence DOES happen. What percentage of the dinosaurs who ever lived do you think were actually alive at the point the meteor struck the planet that wiped out their existence. If you and I were dinosaurs conversing, at some point in their era, and you told me that a meteor were about to hit that was going to wipe us out, you are going to have to give me some damn strong evidence, because my inclination is going to be to not believe you, and 99 times out of 100, I will be right, without even looking at the evidence.
Likewise, I am not arguing that it is IMPOSSIBLE for us to not only be the species that causes global warming, but for us to exist at the very point in time where we have the capacity to do it, I am arguing that is highly unlikely. Between two explanations for the current global warming: 1)Its man-made, and 2)Its part of the natural cycle of warming and cooling that we know exists on this planet, barring extraordinary evidence, I am going to go with explanation #2.
I am also not saying our species has no capacity to alter our environment. Clearly, any species does, at least a little bit. I can even buy your argument that we may affect it more than any other species that has existed. But in "catastrophic ways" as you call it? Now, you are going to have to provide me that extraordinary evidence that extraordinary claims demand. The vanity comes in when you start talking about "catastrophic ways."
You say, "...no one is talking about actually "destroying our planet," as you're implying; they're talking about altering it such a way that makes it much harder for humans (and other organisms) to live, or at least to have what we would consider an acceptable standard of living for ourselves."
They aren't talking about "destroying our planet?" Here is a quote from James Hansen, NASA climate scientist, and a global warming luminary: "The danger is that delay will cause tipping points to be passed, such that large climate impacts become inevitable, including the loss of all Arctic sea ice, destabilization of the West Antarctic ice sheet with disastrous sea level rise later this century, and extermination of a large fraction of animal and plant species."
Extermination of a large fraction of animal and plant species? That's a little more drastic than your claims about making it "harder for humans to live.." and affecting our "standard of living," wouldn't you say? Oh, but "harder for humans to live," and "affecting our standard of living" doesn't get the federal research grant money flowing, now, does it?