I'm not sure if this is a real issue or just an annoyance. If the plastic degrades fully within a few years, it's already much less pollution than plastics where you're looking at 100 years.
When I lived in the UK for a few years, I had a compost bin and used it for a few years with the green "compostable" bin bags they're talking about. eg these ones:
They're designed for the heat of an industrial composter.
You get ones specifically designed for home composting, but even without considering these bags there is a bit of an art to home composting and you want to mix things up to get the reaction going smoothly.
From the article:
> But the research shows that, in this case, the better solution is to send compostable plastics to industrial composting facilities, where composting conditions are regulated.
> “We have shown that home composting, being uncontrolled, is largely ineffective and is not a good method of disposal for compostable packaging,” said Purkiss.
