Open University biogeochemist Matt Kent transports us to the peatlands of Indonesia, the land of the orang-utan, and a critical carbon-store. Matt studies tropical peatlands, investigating water-air greenhouse gas emissions and what dominates these processes. Listen to him cover everything from the joys of fieldwork, working with local field guides to deploy his “space hats”, to the fragility of peatland environments, which face the threat of devastating forest fires.