FOR almost a decade, Tiza Mafira has endeavored to reduce usage of single-use plastics. This environmental activist started her battle against plastic waste in 2013 when, together with her colleagues, she launched the online petition “Pay for Plastic” with the hashtag pay4plastic on Change.org.

Tiza, 39, said that seeds for the petition were planted when she was stuck at her office in Jalan Sudirman in Central Jakarta due to rain and