There's no significant microbe decomposition yet. Fact is, there are microbes that do it, it is an abundant energy source, and so you'd expect these microbes to

There's no significant microbe decomposition yet. Fact is, there are microbes that do it, it is an abundant energy source, and so you'd expect these microbes to fill that niche quickly. Failing that, we will engineer some. I think the current common wisdom timelines for plastic decomposition are wildly wrong and based on old evidence and understanding, I think within 100 years lack of durability of plastics due to decomposition is actually going to become a problem. I would hope someone would engineer plastics that can resist it, the reason single use plastics are so ubiquitous is because they're cheap, not because theyre long lasting, you don't need grocery bags to last a thousand years, so long lasting plastics for durable applications and plastics for which microbes exist to decompose them for single use would be ideal.