Littered Cigarette Butts: A Grave Environmental Concern

How often does a smoker think twice before littering the cigarette butts here and there? Should he care about that? What kind of harm would these little remnants create? Well the reality becomes quite different when studies show that around 4.5 trillion cigarette butts are littered worldwide every year by more than one billion smokers that generate approximately 2 billion pound waste over the earth surface.