What is the relationship between climate change and criminal predation? Bangladesh's Sundarbans, the world's largest mangrove forest, has, over the past decade, emerged as a climate frontier. It is a space viewed not only as a climate hot spot but also as a zone where control and opportunity emerge out of friction between long-standing political economies, new conservation interventions, and the materialities of the mangrove forest. Concomitantly, those who work in the Sundarbans have reported a dramatic increase in banditry and kidnapping. This article proposes the concept of an "ecology of capture" to chart the articulations between such kidnappings and other attempts to control rents, resources, and territory. Seen through the lens of capture, the Sundarbans highlights how the global rush to secure climate hot spots against degradation and displacement produces new configurations of expropriation and exploitation. [climate change, piracy, capture, conservation, Sundarbans, Bangladesh]