Birdie
The problem is that you have to do the maths - Sorry It's hard science with big computers sitting around talking about general principles does not show you what is going on.
Nobody denies that in the past there have been changes in the climate.
Some are called Milankovitch cycles and are well known
*BUT* when you plug all the data into the computer models you can account for these with what is known.
This last change is different - You can only account for it if you take into account Human activity.
Human activity is small but the atmosphere is already highly loaded we are putting something like 2% in every year *which is not being taken out.*
2% this year and last and the one before that etc. etc. etc.
Want some hard facts?
Try the Royal Society - the worlds first and most respected scientific institutions
I think you'll find most of your points coverred in their list of misleading arguments:
http://royalsociety.org/page.asp?id=6229
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The sun is number 6
However when you look at the numbers