Earlier quoted context omitted.
> Transportation costs and breakage are perhaps higher, but maybe that’s a cost we should accept? I suspect that transportation and breakage costs are higher only because we don't account for externalities when considering plastic: in other words producers don't sustain the full costs and are effectively subsidized by the society at large and the environment (through increased healthcare spending, lower QOL, higher o…
Glass has externalities as well. If all transportation weight is significantly higher that is going to have a large impact on global warming until we switch to clean transportation which to be frank is a long ways off if we are being honest.
It's been proven time after time that we won't reduce emissions by appealing to the social conscience of people and corporations, but everybody obeys economic measures.