"Is CO2 a greenhouse gas ? We've had proof of that since the mid 19th century"
Untrue. It was hypothesized by Arrhenius but then Robert Wood showed that greenhouses do not warm because of the "greenhouse effect"
"If it is, and we know it is, then it means that increasing CO2 levels = less energy leaving the earth."
Bunk. Even if CO2 worked the way you think, the effect would be logarithmic, not linear. In any case, studies of ice cores have shown consistently that CO2 enrichment is a centuries delayed response to climate warming, never preceding that warming.
"Well there you go - either prove that the ENTIRETY of chemistry is bunk, or disprove thermodynamics and conservation of energy"
Untrue. Your poor grasp of science is not an excuse for anyone else to believe it. Despite CO2 rising during the 20th and early 21st Century, temperatures have risen, fallen, risen and now stabilized for more than 18 years.
"And besides - all that stuff you said are lies, told to you by professional liars - the SAME professional liars who spent years telling you smoking was healthy and lead in the air was both natural and harmless"
Again, hyperbolic nonsense. But why let facts get in the way of your millenarian beliefs?