文档介绍：plasticwasteenterworld'soceans8milliontonsofplasticenterworld',alongwithcolleaguesfromthe UnitedStates andAustralia,studiedthesourcesofocean--boundplasticwaste,listingthe20countries,includingChina,Indonesia,India,Brazil,andtheUnitedStates,thatdeliveredthe biggestvolumeof 'models,acountry',suchasexpandedwasterecoverysystems,inordertopreventtheamountofplasticdebrisintheworld'soceansfromincreasingbyafullorderofmagnit