Support WBURHow Teenage Sisters Pushed Bali To Say 'Bye-Bye' To Plastic BagsPlay03:57Download AudioMichael SullivanJanuary 26, 2019 ShareTeenage sisters Melati and Isabel Wijsen of Bali have received many honors for their efforts to ban plastic bags. Above: They accept the 2017 "Award for Our Earth" from Germany's Bambi Awards. (Getty Images)
