Throughout the US, millions of freight trucks are buzzing goods across state lines, producing massive amounts of greenhouse emissions — some of them are only half full. Working to make this 400-billion-dollar-a-year supply chain process as efficient and sustainable as possible freight expert Oren Zaslansky digs into the logistics of filling these trucks to their maximum capacity through algorithmic car-pooling (think: ride-sharing your freight) — bringing with it the potential of a more transparent and eco-friendly global supply chain.