Actually, they like to put a single box on the big double trailer trucks that emit the really black smoke and drive them to the top of Pikes Peak in Colorado, then sit there for however many minutes as the package weighs with the throttle all the way down so the pollution can rise quicker into the jet stream. Then a helicopter will come and pick the box up and transfer it to a pre-smog regulated diesel truck that sits (while running full-throttle) on the back of a coal-powered train that then takes it to the opposite side of the country from the final destination. At that point it will be put on an electric vehicle that transports it to a jumbo jet loaded with a maximum load of 18 lbs that will travel, again, the opposite direction of the final destination around the entire world before it lands at the hub near the pre-smog regulated diesel trucks that make the local deliveries.
It's all very green and economical.
