I agree wholeheartedly with movements concerned with making the plastic and packaging manufacturers, as well as the product manufacturers, directly responsible for their plastic pollution. It's another example of industry "creating externalities" like pollution and added social costs to make their "profit."
I watched an enthralling documentary a couple years back at a festival here in Toronto called WaterDocs, water ecology-themed documentaries from around the globe that year. My favourite was one out of Peterborough, Ontario, talking about their turtle ambulance and clinic. But the one that's relevant here had to do with plastic pollution of the Ganges River of India. The main observation was that it seemed that so much plastic made its way into the waterways that fed into the Ganges because plastic packaging was generations new in some locales, where the previous standard had been only biological wrappers, sometimes only the rind or skin on the fruit, or suitably large leaves. When these are thrown away, they result in soil. Obviously, the new wrappings don't fit with the traditional method to dealing with garbage.
I am comforted by companies that are using pressboard and mycology to make new, completely biodegradable shipping materials. We try to keep in mind that Recycle is the last of the three Rs for good reason, and that it's better to choose brands that don't give you a bunch of plastic to dispose of when you've used their product. Mostly, my much better half and I make food from scratch, which can be bought entirely without plastic if we're careful. We try to keep as much of our money as possible away from buying plastic, directly or indirectly, much as we do with palm oil products, or produce from countries with systemic food standard issues.
There's so much plastic, and so many snouts in the trough, as has been mentioned, that change is difficult, so no single-pronged approach will do much more than dent the issue. But if we all take one, or as many as we can fit into improving our individual lives, and do so collectively, we can change the economics of the situation. We already have, to some extent, in some regions.
We need to do much more, I feel. I don't think that I am exaggerating when I suggest that it would be a good idea to build artificial islands made up of floating plastic pollution where their components freely float right now in garbage gyres in every ocean on the planet. These islands could be used to support efforts to strain more garbage out of the gyres, probably for appropriately high-temperature incineration such that dioxins aren't formed, to generate power for the formation of an artificial
biorock reefberg, alongside solar, wind, and wave generation. Alternately, bioreactors featuring organisms that metabolise plastics into their biological base components could create soil.
The scary thing I foresee is that the only way to deal with microplastics escaped into the environment will be to find more microorganisms that have evolved to metabolise plastics and to engineer organisms with those traits that allow them to thrive on plastics in the larger biosphere.
-CK
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein