[ripdog]

There are externalities to the switch to glass. For example, what about the extra carbon emissions from the extra diesel burn by the trucks shipping the ingredients for the glass to the glass factory, the raw glass to the bottling plants, and the bottled beverages to the supermarkets?

The extra weight of glass over plastic is significant. It's not an easy problem to solve. Hopefully truly compostable plastics will come along to save us, although they themselves emit gases when they decompose, and the additives may have food health risks.

[b1daly]

Or maybe truly reusable plastics could work? Some of the plastic bottles used for beverages seem remarkably strong for their weight.