KAJIDIN was lost in thought aboard his boat floating down the Adem River, Muara Karang, North Jakarta. The noon breeze and ripples rocked his boat gently. The 40-year-old remained silent, gazing at the masses of waste drifting slowly along the stream. Its fresh in his mind how he had never noticed such waste emptying into Jakarta Bay 30 years earlier.

At that time he was 10 and only a primary school fifth-grader. His father, also a fisherman, freq