1. http://www.heatisonline.org/contentserver/objecthandlers/index.cfm?ID=5959&Method=Full&PageCall=&Title=CO2%20Gives%20Big%20Boost%20to%20Allergens&Cache=False
2. This article talks about how Global Warming will cause a rise in Carbon Dioxide levels that will boost pollen production, and make people with allergies suffer more in the future than they do now. It also says that crops will become better due to high Carbon Dioxide levels, and that Global Warming may make Earth a greener planet.
3. no meaningful quotes.
