I take nothing on face value Gav, otherwise I would not have forwarded the question. I would simply have accepted the overwhelmingly popular veiw repeated by 99%+ of people, 99% of whom are not climate scientists either. In other words, most people are simply taking what they hear on the subject on face value. I appreciate that you have taken the time to dig up some more info on this, my main focus has been elsewhere. Which means I will have to put that aside so I can go searching for and ploughing through as much climate change literature as possible.

If I come to the conclusion that there is overwhelming evidence that current climate change is largely or entirely man-made, I will cheerfully admit it and come back to the fold on this one.

But right now all I have is: climates have swung wildly many, many times in the past without any help from us - but this time it's different. It's definately us.

If the data had shown a long term history of climatic stability, I would have little doubt that carbon emissions were behind it all. But I still need a bit more convincing yet.