About 20 years ago, the residents of Padangtegal village in Bali, Indonesia, had a problem. The famous, monkey-filled forest surrounding the local Hindu temple complex had become stunted, and saplings failed to sprout and thrive. Since I was conducting fieldwork in the area, the head of the village council, Pak Acin, asked me and my team to investigate.
We discovered that locals and tourists visiting the temples had previously brought food wrapped in banana leaves, then tossed the used leaves on the ground. But when plastic-wrapped meals became popular, visitors threw the plastic onto the forest floor, where it choked the young trees.
I told Acin we would clean up the soil and suggested he enact a law prohibiting plastic around the temples. He laughed and told us a ban would be useless. The only thing that would change people’s behavior was belief. What we needed, he said, was a ...
