Online shopping might not be as green as people think it is. Simulation results showed that home shopping puts an additional burden on the local transportation networks. The total number of vehicle miles traveled hasn't decreased with the growth of online shopping.

See the source article by following the link below:
Online shopping might not be as green as people think it is. Simulation results showed that home shopping puts an additional burden on the local transportation networks. The total number of vehicle miles traveled hasn't decreased with the growth of online shopping.