Pumping up poison ivy
Boosting carbon dioxide levels makes poison ivy grow faster and become more toxic.
By Emily Sohn, 00:00 AM June 2, 2006
It itches and oozes. With its red bumps, a poison ivy rash can make you miserable.
The potential for misery might get even worse. A new study suggests that rising levels of the gas carbon dioxide in the atmosphere could make poison ivy grow faster and become more toxic.
Poison ivy grows unusually fast when carbon dioxide in the atmosphere reaches levels expected in forests by about the year 2050.
"Rising carbon dioxide can favor pests and weeds, those plants we'd leas...
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