Zipperfish Zipperfish:
Interesting. Judith Curry says "Not being caused by humans predominately" So is she saying there is some warming caused by humans. Lorne Gunter asks if humans are changing the climate "significantly." So is he saying ome warming is caused by humans. Can't help but notice all the deniers hedging their bets now.
I'll tell you again what I've been telling you since about 2007.
The central question climate skeptics are concerned about is one of Climate sensitivity. Myself, I learned this listening to climate scientists like Richard Lindzen way back when. One more time, it goes like this...
If there are no feedbacks CO2 will add about 1 degree of warming per doubling. But all that is, is nice weather. To be something we need worry about you need positive feedbacks. If you know of physical evidence human influence or anything else is creating these positive feedbacks produce it. I've been asking to see such evidence for almost ten years. I'm still waiting to see it.
Would you like to see 2007 links again to show you this has been the issue since at least then?
The stance of skeptics of the alarmist doctrine has been consistent. (A Hell of a lot more consistent than the chicken little alarmism stance. That one changes with the weather from global cooling to global warming, or from global warming to climate change or from climate change to climate disruption.)