[Regulator75]

Different groups have done different studies and their results differ, with some people saying cigarettes decompose in a year, some saying it takes twelve years, and others saying they never decompose at all (the filters are made of a type of acetate that never fully breaks down). That is not what people mean when they use the word biodegradable.

Rather than get into a scientific argument, we ask smokers who litter to use common sense. Ask yourself if the cigarette you throw down is going to disappear anytime soon. Do your own experiment. Put a cigarette in an outdoor planter (use a string or pin to secure it), and see how long it stays there. We guarantee it will be a long term experiment! However long you finally decide it takes for a cigarette to decompose, ask yourself if you would like all such "biodegradable" items to be thrown on the ground, such as cardboard containers, newspapers, Kleenex, paper grocery bags, etc. It wouldn't be pretty.

http://www.cigarettelitter.org/index...me=Smokers#bio