illustrates the problem vividly: 48 football fields worth of rainforest are destroyed every minute. It’s startling, but Topher White might have a partial solution. White is the CEO of Rainforest Connection, a startup that collects old smartphones, retrofits them with solar panels, sticks them high in the forest canopy, and uses them as invisible warning devices to pick up whenever a chainsaw buzzes to life so it can alert the local authorities. Think of it as wearable tech, but…