Not sure what you mean but Amazon is doing a lot of research into things like drone deliveries and robotic vehicles which can be powered from renewable energy.

Fuel costs money. Ultimately delivery efficiency is better for business and for the environment.

They also are encouraging all deliveries to happen on a given day of the week so they can be batched up and logistically planned better.

Seems like things are moving in the right direction.

Why are you assuming that?