[carlmr]

Even in Europe with public transport to the stores, I would bet delivery is many times more efficient.

The only question is whether people buy so much more due to convenience that the maybe 50x efficiency gain gets offset by 50x more items ordered. But I don't think that's the case.

[noneeeed]

Would be interesting to know the numbers. It's a bit like IKEA, their furniture requires less energy to produce and ship but does the resulting cheapness cause people to buy significantly more?

I don't think I buy significantly more stuff than I otherwise would just because it's convenient from Amazon, but perhaps I do.

[nine_k]

Furniture is large; you can't buy significantly more sofas and closets. It may be cheap but still not throwaway cheap.

Small items easily available via Amazon are much easier to hoard.