Episode Four: Curio This episode is all about trees and how users of Curio can map and monitor urban and community trees globally. Terrence Pickles is the founder of Exeter Trees, which attempts to document and preserve every tree in Exeter, in the UK, using both YouTube and the Curio app, which was developed by our second guest, Paul Hickey. Co-host Caroline Nickerson talks to Terrence and Paul about their motivations for doing the work they do, the kinds of results they’ve had so far, and how you can get started using Curio to better see and understand the whole of the world, or at least the trees you walk by every day. A transcript can be accessed here.