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How do we package food products sustainably in coming decades? (lemmy.world)

submitted 7 months ago by j4k3@lemmy.world to c/asklemmy@lemmy.ml

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I imagine all plastics will be out of the question. I'm wondering about what ways food packaging might become regulated to upcycling in the domestic or even commercial space. Assuming energy remains a $ scarce $ commodity I don't imagine recycling glass will be super practical as a replacement. Do we move to more unpackaged goods and bring our own containers to fill at markets? Do we start running two way logistics chains where a more durable glass container is bought and returned to market? How do we achieve a lower energy state of normal in packaging goods?

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[–] Hamartiogonic@sopuli.xyz 4 points 7 months ago (1 children)

Renewable sourcing is nice, but that doesn’t really address the main problem, which is what happens to the plastic after you’ve used it. If it’s burned, it will release the previously stored carbon into the atmosphere. If it’s recycled, the carbon stays in circulation. If it’s biodegradable, it solves the plastic problem for the most part.

[–] Rivalarrival@lemmy.today 4 points 7 months ago (1 children)

"Biodegradable" and "burning" release the same mass of carbon into the environment. Burning releases it as CO2. Biodegraded plastic releases that carbon as methane.

Biodegradability is not a desirable property of trash bound for a landfill.

[–] Hamartiogonic@sopuli.xyz 4 points 7 months ago

Actually it depends on how it decomposes. Anaerobic processes tend to produce methane, whereas aerobic ones usually produce CO2. Anyway, I was mainly thinking of the microplastics though. Biodegradable plastic wouldn’t stay in a harmful form for thousands of years, but it would still produce carbon in some form.