A number of my my friends from the left commented on the amount of pollen this year. I myself witnessed a haze in the sky that was reminiscent of a hot humid day. A friend with a plane mentioned that he had never seen so much pollen in the sky.
I tried looking up pollen records, and the results were somewhat sketchy. Though anecdotally pollen counts are going up. A database of pollen counts was not easily findable on the web. typically keep my mouth shut when it comes to discussing politics and such. The programed reaction to the increase in pollen count is to blame global warming.
When during dinner with friends the mention of pollen count came up, I mentioned that maybe the extra Co2 was making the trees happy. Nobody disagreed.
More Co2 makes for happy trees.