“Amazon is destroying millions of items of unsold stock every year, products that are often new and unused, ITV News can reveal. (That article covers the UK, but an insider tells me it's happening in the US too)”
Amazon overstocks their warehouse and then has to prioritize the space for the most profitable stock. They destroy everything that does not make the cut. That strikes me as very inefficient. I think any perceived efficiency draws from the sort of work environment that causes employees to pee in jars. That’s not really the kind of efficiency that benefits the environment.