Litter consists of waste products that have been disposed improperly, without consent, at an inappropriate location.
To litter means to drop and leave objects, often man-made, such as aluminium cans, cardboard boxes or plastic bottles on the ground and leave them there indefinitely or for others to dispose of as opposed to disposing of them properly.
Large and hazardous items of rubbish such as tires, electrical appliances, electronics, batteries and large industrial containers are sometimes dumped in isolated locations, such as national forests and other public land.
Cigarette butts are the most littered item in the world, with 4.5 trillion discarded annually.
Cigarette butts takes about five years to 400 years for complete degradation.