The Impact Of CO2 Is Measurable In The Lab
Unlike many of the other factors you mention, yet somehow we are supposed to ignore lab data and simulations based on them in favor of possible other factors that absolve us of responsibility. It's rather ridiculous to look at the correspondance between CO2 levels and global temperatures and then conclude it must be something else. When lab data, real world data, and theory correspond on one side and meer supposition supports the other side it's easy to see why the scientific consensus is where it really is. They false GW consensus debate is almost as bogus as the idea that creationists have a viable scientific alternative to evolution.
Regards,
Mark