Earlier quoted context omitted.
Perhaps someone better versed in economics can help me here: isn't this the type of thing where a tax might be useful- for example, a tax on products that use 'new' plastic/glass as opposed to recycled? basically, convert the 'cost' of garbage everywhere into an actual cost?
I don't think it's necessary, because people already pay to dispose of garbage. The cost isn't borne by the manufacturer, but as long as it's borne by somebody involved in the transaction, it'll be accounted for. Taxes are useful to capture externalities, where the costs imposed are on other people unrelated to the transaction. For example, taxing air pollution helps to capture the costs it imposes on the general pop…
Quantifying that cost is a challenge--maybe start with how much $$ it would take to "un-product" the product and return it back to the raw materials it came from. In some cases, we'd find it probably costs more to un-make a product than it was sold for.
Could also (in addition to, or instead of) charge the MANUFACTURER for a portion of this shared environmental cost, as they ultimately chose to make a product designed to be turned into pollution.