this post was submitted on 25 Jun 2025
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[–] testfactor@lemmy.world 0 points 11 hours ago (1 children)

I'd be really interested to see a quantitative analysis of how much difference it would make if all 330mil of us swapped to renewable bags.

My gut is that paper bags are pretty clean overall, and that grocery bags are a tiny fraction of paper usage in the US. But I'd be really interested to be proven wrong.

[–] KnitWit@lemmy.world 2 points 11 hours ago* (last edited 11 hours ago) (1 children)

My quick search keeps popping up the statistic of 14 million trees for 10 billion paper bags used annually in the US, but in 1999 so I’m sure that is higher. You’ve also got to consider the high energy usage and large environmental concerns of paper mills. I don’t know if you’ve ever been near a paper mill, but they’re known for their air pollution, they make entire towns stink.

This stat taken from http://www.forestecologynetwork.org/climate_change/plastic_or_paper.html

ENERGY TO PRODUCE BAG ORIGINALLY (BTUs) Safeway Plastic Bags: 594 BTUs Safeway Paper Bags: 2511 BTUs (Source: 1989 Plastic Recycling Directory, Society of Plastics Industry.)

[–] testfactor@lemmy.world 1 points 14 minutes ago

I do think the BTUs portion is less concerning in the greater context. Both 600 and 2500 are negligible compared to, say, my daily commute, or a single plane trip, or basically any other activity that requires energy.

But the first part is kinda interesting. Doing some super sloppy back of the napkin math, I think that makes paper shopping bags about 6.5% of all paper products made in the US. Paper products account for around 50% of all wood products in the US, so call it just over 3% of total wood use (which may have gone up some due to increased prevalence of paper lately.)

Which isn't nothing for sure. I would have guessed lower. I do think it may be overstating it to say we'd see a huge shift if everyone started using reusable bags overnight. A 3% drop in timber harvesting would be good, but not world changing I would think. But not insignificant either.