Rash statements?It's big news that poison ivy poison ivy, poison oak, and poison sumac, woody vines and trailing or erect shrubs of the family Anacardiaceae (sumac family), native to North America. thrives where there are higher concentrations of carbon dioxide carbon dioxide, chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure. ("Pumped-up Poison Ivy: Carbon dioxide boosts plant's size, toxicity," SN: 6/3/06, p. 33.9)? Did everyone forget elementary school elementary school: see school. science and plant life's dependence upon carbon dioxide? Do I advocate buying and driving the most carbon dioxide-emitting vehicle you can find? No. I guess I would just like to see more common sense and less common scare in your article. SCOTT BILLINGSLEY, SAN ANTONIO, TEXAS “San Antonio” redirects here. For other uses, see San Antonio (disambiguation). San Antonio is the second most populous city in Texas, the third most populous metropolitan area in Texas, and is the seventh most populous city in the United States. As of the 2006 U.S. Poison ivy in enhanced carbon dioxide didn't just grow. It grew much more than woody plants did under the same conditions. That difference between a weedy vine and woody plants could mean changes in the forest communities of the future.--S. MILIUS |
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