Yeah....too bad that's not what I said...what a dreamer. Did Fat Al mention how CO2 is a trace element in the atmosphere? No, I don't believe he did.
Here's how your Climate change guru in Skeptical Science advises to handle this arguement:
CO2 makes up 390 ppm (0.039%)* of the atmosphere, how can such a small amount be important? Saying that CO2 is "only a trace gas" is like saying that arsenic is "only" a trace water contaminant. Small amounts of very active substances can cause large effects.
Great answer, except CO2 isn't arsenic, it's a very weak greenhouse gas. Methane for instance is 30 times stronger. There's been times when CO2 levels were 10X higher than present and glaciation still occurred. Really, CO2 fanatics need to give it up.
It wouldn't hurt you to read this either Mr @Nuxfanabroad.