> Coffee powder needs to be kept in a sealed container to be 'fresh'

There's no shortage of those sealed containers. If someone has a Keurig machine, and is using those pods, then they also have a refrigerator and are able to obtain containers, which are inexpensive.

There is no real argument for keurig cups other than convenience.

Is that convenience worth all of the waste? Should people be able to choose to generate such waste for something so trivial? Should be firms be allowed to sell waste-generators like Keurig? If Keurig is not responsible for the mountains of damage done, and the consumers are not responsible, then where does the buck stop?

This area is ripe for regulation and well overdue.