Hi Lighthouse I came across this by accident I was actually looking to see if anyone else is having trouble with CommSec accounting. I have been looking at AGW for many years and do not want to go into the detail of your arguments but I think I can help. Suggest you have a look at what Bob Carter has to say because there are three fronts to the argument. Also you could look for "Whats Up With That", "Climate Audit" and Jo Nova on the web. As for the science it is very difficult to say in a sensible manner what they are on about mainly you will get personal attacks on your intelligence and whether you had a father and mother. As close as I have got is CO2 will absorb infra red and this is emitted back to warm the planet. 560PPM will produce about 1.2 degrees. Most all scientists as well as those on the skeptical side agree to this but taking that the activists run with it. Everything is connected using the dreaded word forcing see "http://www.numberwatch.co.uk/warmlist.htm". I have an understanding of why all this is happening and see the unreasoned belief the threat in itself. Along this line I am told "The God Delusion" is worth reading. This is brief and probably hard to get across what I am saying. I will reply to you but have given up on those in the climate barking mad set of religious bent. I am a retired computer analyst/programmer and know something about GCMs.