According to Keep America Beautiful, one of the bad aspects of litter is that it encourages more people to litter. Researchers from KAB observed that if people see garbage scattered around public or commercial trash cans, they tend to drop their litter on the ground nearby.
This is why it is imperative that cities mount aggressive and clever anti-litter campaigns and provide more trash receptacles for people to get rid of their trash. Several cities as indicated in the infographic above have instituted innovative anti-litter programs that have had very positive results.