Global Warming makes Nastier Poison Ivy

If floods caused by global warming won't be enough to kill you, then maybe nasty welts from poison ivy will do the trick. It seems that the increased levels of carbon dioxide the in the atmosphere will produce more itchier vines. This is the conclusion of the study made by scientists from Duke University. The higher concentration of CO2, according to the scientists, makes the poison ivy produce more uroshiol, the compound that causes rashes.