According to a study conducted by the MIT (curious? read here
), the carbon footprint of normal online shopping is around 15% smaller than for traditional shopping. However, the emission levels caused by a rushed delivery for an impatient customer are raised by more than 300% compared to the normal delivery. This augmentation is mainly caused by freight transportation.
To cater for the need for fast deliveries, shipping and freight companies often send partly empty vehicles to respect their schedule. And because there are less packages to offset the emissions of the vehicle, each rushed package has a greater carbon footprint.