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For this particular problem, create single-use, highly compostable packaging. This has to happen not just at the final grocery bagging step, but for all packaging.

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We have it already. It's called paper or cardboard

And unless it’s waxed or oiled, it doesn’t hold liquids or liquidy things very long but I guess that defeats the compostability?

The chart suggests you'd have to reuse a paper bag 43 times for it to be as low-impact as a plastic bag.

The point of this graph was to suggest that single-use highly compostable packaging would be 40x more damaging to the environment than a LDPE; Low-density polyethylene bag. People focus on the disposal a lot, when the actual creation of said bags, which LDPE is close to zero at scale, is what causes damage to the environment.

We're like drunk people search for our keys under the streetlight - we only focus on the stuff that we can see, rather than what is actually important.

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