[justinph]

Then this is a perfect case for regulation, to make it cost more to make new glass than re-use existing containers. It worked in the past just fine. But the first world incentivized energy production so much that we drove down the need to be efficient.

[sp332]

For glass bottles, I don't see the point. There's no glass shortage, and glass debris doesn't kill anything or leech into the soil from landfills.

[1123581321]

The environmental cost of collection, transport, inspection and cleaning, and transport to be filled would outweigh the cost of manufacture and transport to be filled. So that regulation would make jam more expensive and/or the environment worse.