Doing the scientific research is the step that you left out in your "therefore" statement. That is the important step. Quantifying the effect rather than saying "yep, CO2 is up, the world is coming to an end and my corns are hurting" is what I'm trying to clarify.
And the jury is still out about global warming. The margin of error is higher than the claimed rise in temperature.
I thought everybody knew that higher CO2 meant higher pollen. It's one of those deals were I read and understand something but forget that some aren't on the same page. It seems like a very simple concept. No 'leap of faith' to me. Maybe you haven't ever heard of using CO2 in a grow room to enhance growing? Sorry for not adding all the scientific test data but that would be a little mundain in this case.