Does Smoking Contribute to Global Warming?

"You may find this hard to believe if you’re standing near a swarm of chain smokers, but most scientists think the trace amounts of carbon dioxide and other pollutants in cigarette smoke have, at most, a negligible effect on the climate. In fact, theorizes John M. Wallace, a professor at the University of Washington’s climate-research department, it might even counteract global warming by an equally minuscule amount, because the white particulate matter in smoke would reflect some of the sun’s energy, thereby minimizing heat. But the smoky end-product is not the entire story. Tobacco must be grown, and that process puts a serious hit on the environment."

Does Smoking Contribute to Global Warming?
by Matt Cokeley
http://www.popsci.com/environment/article/2008-06/does-smoking-contribute-global-warming