Substantial? Not really compared to truck transport or even cars. Or especially not when compared to electricity generation. Two cans of soda take more energy

Substantial? Not really compared to truck transport or even cars. Or especially not when compared to electricity generation. Two cans of soda take more energy to make. (Because metals are extremely energy intensive to refine and recycle.) The main environmental killers are still means of transport. A car is a ton of metal... Housing also demands plenty of energy in materials.