I am a skeptic.
For people who truly understand, a "skeptic" does not say "I think X is not true." A skeptic says, "I am not convinced about X, and I have some tough questions." Which, to me, has always been where science truly starts.
I'm often astonished how some people, especially some with college degrees in science, can't distinguish the difference.
Many of my friends and teachers who have been working scientists have told me a certain dirty fact: there are an awful lot of "scientists" who are nothing but bureaucrats and self-serving suckups and administrative button-counters and bottle-washers-- just like every other honest and admirable profession in the world.
(Repeat: Just like every other honest and admirable profession in the world.)
On global warming, my position has been the same for years:
1) It is undeniable that there is Climate Change.
2) It is virtually 100% certain that human beings are contributing to Climate Change.
3) It appears highly likely that there is a general warming trend in the world at the moment.
4) CO2 levels have clearly been increasing globally for decades.
So, given that I agree to all of that, what exactly am I "doubting" or "denying" or expressing "heresy" or whatever on? I await a succinct answer upon that.
In the meantime, what is not clear to me, and has not been clear to me for some time is:
1) The increase in CO2 levels is the primary cause of whatever warming trend we've seen recently. How sure are you? It's okay if you have some doubt. But how high is that doubt? 10%? 20%? 30%? What's your confidence interval?
2) Regardless of how certain you are, a separate question: is this truly the most important ecological question we face as a species and as a planet? Should this truly be our #1 priority, ecologically and in terms of our nation, our race, our species, or our planet?
I've been saying most of this pretty consistently for quite some years now. Indeed, I'm pretty sure that (aside from maybe a sarcastic or flip comment now and then) that I haven't changed my view on that in a decade.
For the record, I have read Al Gore's Earth in the Balance cover-to-cover, including all footnotes, and checked many of his references. Have you?
I've also read Rarchel Carson's Silent Spring, by the way. Have you read it, Mr. Self-righteous Liberal or Ms. All-Knowing Conservative? I even have the special edition where Al Gore wrote his own introduction to it somewhere in my library. I remember being as unimpressed with it as I was with Al Gore's incredibly self-serving, messianic political campaign movie, An Inconvenient Truth, which he quite transparently hoped would transport him to the Presidency in 2008 and still hopes will make him a viable candidate in 2012. (Which is just fine by the way, but let's not kid ourselves that this man is in any way smarter or more noble than, say, George Bush or Bill Clinton, because he isn't. Although he's still a way more honest and intelligent pseudo-documentarian propagandist than, say, a hatemonger like Michael Moore).
Indeed, for some time now I've been saying that if Al Gore and their supporters would just drop their destructive opposition to nuclear power, I would be willing to compromise and support some of their other proposals which I found dubious. All they have to do is stop demonizing nuclear power, which is the most environmentally friendly, greenhouse-gas-free form of power generation ever invented by humanity. Unfortunately, Al Gore still publicly refuses to do so.
And by the way, my own personal financial or personal stake in the nuclear power industry? 0.0%. It's just the most environmentally friendly and economically viable form of power generation humanity has ever created, and I still feel betrayed by "environmentalists" who demonize it.
Anyway, since you can't make this simple politics-free concession, Al & Co, I'm not on your side, and will instead continue to do my best to (A) educate people on why we appear to have been snookered by the ridiculous luddites who oppose nuclear power, and (B) continue to point out why everyday people should be skeptical of global warming scaremongers, especially those scaremongers who clearly derive their entire incomes and personal prestige from spreading that scaremongering.
And by the way, to you scientists who do this research? For pay? As part of your full-time jobs? From money that comes from taxpayers like me? You don't get to whine like wounded puppies when someone says, "uh, so, that money we gave you, did you do something valid with it? Or are you just rationalizing?"
As for me: "Denier?" "Heretic?" "Doubter?" Hey, pick whatever convenient label helps you ignore the substantive arguments raised here (and elsewhere, not just by me but by many others).
*Update*: By the way, as I've said many times before, I pretty much consider it a given that anyone reduced to using the word "denier" or "denialist" or "conspiracy" or claiming that only money drives skepticism automatically proves themselves intellectual lightweights not worthy of answering.