fifeboy fifeboy:
I have posted this several times before and get no response from anyone.
http://tigger.uic.edu/~pdoran/012009_Doran_final.pdfI'll make you a deal. I'll read, and give a hopefully thoughtful response to your link, if you'll extend me the same courtesy on the ones I'll link you to at the bottom.
The survey deals with two questions, and from the predominant yes votes draws the conclusion there is a consensus on anthropogenic global warming.
The first question is have global temperatures generally risen since the pre-1800s.
OK, now take the most-hated, supposedly oil financed, blowing cigarette smoke in teenagers faces, global warming skeptic, scientist on the face of the earth. I don't know. Will Fred Singer do? He will answer yes to that question. Skeptics say there was warming as the globe came out of the little ice age in the time frame mentioned.
The second question asks "Do you think human activity is a significant contributing factor in changing mean global temperatures?"
Take somebody like say, Freeman Dyson. He's one of the great scientific minds of our time. In response to interview questions he's made comments suggesting he's skeptical of stuff like the efficiency of computer models as forecasting tools. This has earned him the label of climate skeptic, and dispersions like "alzheimer's ridden old fool not up to his former greatness". In other words you guys tell us he's one of ours now. We'll take him. Now Dyson might answer yes to that question. He attaches much importance to land usage as an influence on temperature. I'm not sure if he's thinking global temperatures, but I think he is. That's not CO2. That's land usage. Another well known scientist branded by you guys with the skeptic label is Roger Pielke Sr. He's also favorable to the idea of human land usage affecting temperatures. And he does think it's most likely global. I assume he would answer yes to that question also.
There's a guy named Warren Meyers who runs a site called climate skeptic. He's very public and loud about accepting the IPCC estimate of 1 degree of warming per doubling of CO2 in the atmosphere minus any climate feedbacks. In fact I don't hear a lot of guys out there in the skeptic community objecting to that. Nevertheless would Meyers answer yes to that question? I think he might depending on what he interprets as "significant contributing factor".
So what's the problem? Your survey guy is saying there's a consensus on those 2 questions. I as a climate skeptic am going to tell you he's most likely correct.
OK here's where the problem is. It's the ol shell game. It's snake oil. That's not the part of the insinuated consensus skeptics have a problem with. .7 of a degree of warming over the 20th century is not unusual, and not dangerous. It's the opposite. 1 degree of warming per doubling of CO2 minus feedbacks, as well as other human influences could be seen as significant.
Where the consensus argument begins is when you start talking the predominance of positive feedbacks in the climate system. Try to find yourself a consensus of scientists who want to stake their reputations on the idea positive feedbacks are the dominant forcing in the natural world. I'll save you some time. You can't do it. The guy who did that survey couldn't do it. If he could, he would have. He knows what you don't. The argument begins with climate sensitivity. This you see is what will supposedly cause a crisis of warming. And that's where you lose scientists from the supposed consensus - when you ignore negative, natural world feedbacks, and start talking dangerous, crisis level, human caused global warming from positive feedbacks.
No offense, but your guy is relying on the ignorance of the average person who reads that PDF to sell the idea there's an AGW consensus. There isn't, because he left out the most contentious part of the premise this consensus is supposed to champion. His survey makes a good headline for the mainstream media, but it's meaningless.
OK, your turn.
The guy I mentioned earlier who runs the blog called ClimateSkeptic is offering a series on the report this thread is about. Here's how it begins.
$1:
The first thing one needs to recognize about the GCCI report is that it is not a scientific document — it is a 170-page long press release from an advocacy group, with all the detailed, thorough science one might expect in a press release from the Center of Science and Public Interest writing about the threat to mankind from Twinkies. By the admission of the Obama administration, this is a document that has been stripped of its scientific discussion and rewritten by a paid PR firm that specialized in environmental advocacy.
Here's the links. Not to worry. The articles are short.
IntroSo much for that whole commitment to science thing we were promisedClimate Must be Dead Stable Without ManWarming and FeedbackI am calling Bullshit on this one