Duniyar duniya na plastics yana ƙaruwa kowace shekara (tan miliyan 288, ma’ana, sama da kashi 2,9% a shekara ta 2012), dangane da haɓaka yawan mutane, saboda haka, tare da ƙaruwar adadin sharar gida.
Ya bayyana a cikin 1950s, waɗannan kayan aiki jam'i yana amsa amfanoni da yawa wadanda ba makawa a yau. Saboda halayensu na musamman - tsabtar jiki, juriya ga firgitawa, da sauransu-, robobi wani bangare ne na rayuwarmu ta yau da kullun, musamman a cikin kwali, wanda a yanzu yake wakiltar kashi 66% na sharar gida plastics.
La producción duniya na jakunkunan leda sun malalo a cikin shekarun 1970, wanda hakan ya kai adadin taurari a shekara. Mafi yawan sharar gida ta ƙare da bin hanyar magudanan ruwa, koguna da teku. Da gudummawa duniya ta haka suna wakiltar kashi 80% na ɓarnar da ta isa teku.
Amma ga sharar gida marine, muna tabbatar da cewa galibi asalinsu daga teku suke Atlántico kuma terrestrial a cikin Rum. Ana fitar da tan miliyan shida na shara a kowace shekara ta jiragen ruwa. A Tekun Arewa, kashi 90% na barnar da aka samo shine kwalin roba (jakunkuna, kwalabe).