Pollution of garbage increases in cities and towns where there is no proper system of garbage collection. Households have to simply collect the entire garbage of their houses and place it to outside home in dustbin or bag. Garbage Pollution is caused by unconcerned citizens who do not know how to dispose of garbage properly. Another cause would be improper segregation of garbage. The disposal of garbage is a factor too because most disposal methods damage the environment. Garbage pollution can cause emissions of methane, a powerful greenhouse gas.