How a monk and a Hippo joined forces to tackle Bangkok’s plastic pollution

Desperate to restore the Chao Praya River to a pristine state, an abbot in the Thai capital began recycling in his temple. Now he has a floating ally in his efforts to clean up the river

• Photographs by Lauren DeCicca

Once upon a time this river was filled with fish; now, nothing swims in it any more," says Wat Chak Daeng temple's abbot, Phra Mahapranom Dhammalangkaro, as he looks out over Bangkok's Chao Praya River.

As a novice monk in the 1980s, he remembers seeing children playing in the river and people scooping up handfuls of water to drink. But when he became abbot of Wat Chak Daeng more than 25 years later, those bucolic images were a thing of the past. Instead, when he arrived at the 240-year-old temple, he was saddened by the sight of the dirty river and the rubbish-strewn grounds surrounding it.