Why poison ivy is an unlikely climate change winner

This plant stands to benefit immensely from climate change. In a six-year study conducted at Duke University in the early 2000s, scientists raised ambient levels of carbon dioxide in a forest plot to 570 ppm over the course of the experiment, roughly the concentrations expected by the end of the 21st century.  They found that poison ivy increased its biomass by 67 percent more than poison ivy without elevated levels of the greenhouse gas.