Trees are pretty great: they give us shade, timber, paper, and even food in some cases. On top of that (and most importantly), they help us breathe, scrubbing about 30% of annual carbon dioxide emissions from the air and replacing it with precious oxygen. But with rampant deforestation and the high resource and labor costs needed to replant all we cut down, we need a better way to regrow what we’ve lost. DroneSeed, a start-up in the Pacific Northwest, might...