Scott SoCal said:
I'm going with door number 5.
Surface temp have risen about 1.4 degrees (F) over the past 100 years or so.
What the world needs is another mega-volcano. Maybe climate science can work out how to make that happen.
At this point AGW is not provable and thus am suspicious when I am told "the science is in".
All of your above points may be the gospel, but tell me what it means? Here's the problem: you can't. The models are consistently inaccurate, the climate science really has no answer for the lack of warming over the last decade. Why do you suppose this is?
My feeling is climate science has bet the farm on only one conclusion to the exclusion of all others. Why?
Money. You can't tax the sun or the oceans.
Of course I could just be cynical.
Sorry, 5 probably doesn't make sense. Radiative forcing isn't just about GHGs but everything including our friends aerosols (volcanoes). It is an invented concept but I think a valid way of looking at climate drivers. See
http://ipcc.ch/publications_and_data/ar4/wg1/en/ch2.html (yes I know it's IPCC). If a net change in energy doesn't affect the planet I'm not sure what does.
I agree that modelling has a long way to go and cannot be relied upon for anything more than an indication. At this point it brings into doubt the makeup of all the impacts, cost analysis and so on. The further down the line you go the greater the uncertainty.
For me personally based on my own conclusions I don't find temperatures falling from one year to the next surprising. It would be a huge overstatement to think that one year's extra accumulation of human GHG emissions would be enough to guarantee a rise in the global average the following year. Just as an increase in the global average one year, I wouldn't say is largely a result of that year's emissions.
On a whole though I feel the temperature data backs up my interpretations, whilst not as warm as the 90s, the global averages are of course still above the average for the 20th century. I doubt I would change my position until we see a return that baseline sustained over decades. That is just me, three or four years ago I'd probably say I was in a similar position to yourself, but then I was indoctrinated by a textbook/IPCC teaching of climate science. Whilst I despised it, I came out of it with a new mindset - having learned the basics of the science I was no longer able to reject the whole discipline based on my own opinion that it was an ugly movement.
The points I mentioned in my earlier post are enough for me to believe that GHG emissions are a negative externality (at least on an intertemporal basis) and thus believe there needs to be action to correct the inefficiency. I realise this is very unsophisticated position, but something I am comfortable given the limitations of my knowledge. A step further into the fact that it is a "global" problem breaks my position down completely, and I have to revert to ideology.
Scott SoCal said:
Are you going to argue that Michael Mann, Phil Jones and others at IPCC and UEA are not playing politics now and in the last 20 years or so?
Politicians may not be scientists but the most vocal climate scientists are definitely politicians. Unelected, but politicians nonetheless.
Come on, read what I've said:
"I'm not here to argue politics, which is of course one of the
major flaws in climate science." [Getting involved in politics]
"In exactly the same manner,
we shouldn't allow scientists to interfere with political process, they should only be there to communicate the scientific realities and no further commentary"
"You are of course welcome to say that the above is a major flaw in climate research (which is true)"