[gruez]

I think you're missing the point. You want us to switch on the assumption that plastic is intrinsically bad and glass is intrinsically good, without going through the analysis to confirm whether it's actually the case. Sure, glass has benefits compared to plastic, but it also has costs. Should we switch to glass even if it's 2x more expensive (in dollar terms) than plastic? What about 3x? 5x? What about in terms of environmental terms (eg. energy use/water use)? If using glass produces 2x the greenhouse gasses overall, should we still use it? What about 3x? 5x?

A good point of comparison would be plastic bags vs paper bags vs cotton bags. I think most people "feel" that plastic bags are bad and should be replaced with the alternatives, but paper bags are equal to plastic bags when you only look at climate impact, but is 43x worse than LDPE bags when factoring in "all indicators". Should we still switch to paper bags in this case?

https://www2.mst.dk/udgiv/publications/2018/02/978-87-93614-...