Increased atmospheric CO2 levels: an itchy situation?

When I get time, I like to garden. I mentioned to my aunt, who is a master gardener in my area, how much trouble I had with poison ivy last year. She responded that she wasn’t surprised because many master gardeners had noticed that poison ivy was on the rise. Being the curious biologist-type, with limitless research resources at the tip of my fingers, I of course searched PubMed for ‘poisin ivy’. And guess what I found – a report on a six-year study indicating that increased carbon dioxide levels resulted in healthier, more prolific poison ivy that ALSO has increased ability to irritate our skin. If you need yet another data point to inspire you to go green, check out the interesting (scary?) original research, which I’ve cited here.
ResearchBlogging.orgMohan, J.E. (2006). Biomass and toxicity responses of poison ivy (Toxicodendron radicans) to elevated atmospheric CO2. Proceedings of the National Academy of Sciences, 103(24), 9086-9089. DOI: 10.1073/pnas.0602392103