Converting walls to carbon caches could be compelling when you consider just how much wall space there is in the average US home. Shifting from a high embodied carbon material such as drywall, to a carbon storing material could create a colossal carbon sink opportunity while also reducing current emissions from manufacturing materials such as drywall and making homes generally healthier at the same time. Follow Kathleen Draper's biochar home building project to learn more about how she has stashed carbon in every nook and cranny of her new home!