Cigarette butts with filters are the most commonly littered item worldwide, with a staggering 4.5 trillion of them tossed into the environment each year. This is a huge problem; many end up on beaches and in the ocean, and the tar from burnt tobacco in the filter can be toxic to wildlife.
Click here for original story, Making the tobacco industry pay for cigarette litter could stop 4.5 billion butts polluting the Australian environment
Source: Phys.org