Issue Date: April 12, 2010
Cigarette Butts Yield A Chemical Rebuttal
Chinese researchers think there's great potential to do something useful with cigarette butts: Extract the chemicals trapped in the filter and in residual tobacco, and then use the resulting brew as an anticorrosion treatment for steel and other metal-based materials.
Cigarette butts are one of the most ubiquitous forms of pollution on the planet, with an estimated 4.5 trillion butts flicked out of car windows, tossed aside on sidewalks, or otherwise discarded each year. The . . .
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