Milk Crates - not as green as you think
The problem is that they're stolen. They belong to the dairy whose name is printed on the sides. Dairies reuse these crates. They don't discard them, contrary to popular belief.
Reusing them would be green if they were discarded. Sadly, dairies must keep replacing their stolen milk crates. That means more resources used. The milk crates outside stores aren't being thrown away; they're awaiting pickup from the dairy driver.
Even damaged crates belong to the dairies. They send them to be repaired and continue to use them.