Scientists racing to tackle plastic pollution have created a surprising new contender: a biodegradable packaging film made partly from milk protein. Researchers at Flinders University blended calcium caseinate with starch and natural nanoclay to form a thin, durable material designed to mimic everyday plastic. In soil tests, the film fully broke down in about 13 weeks, pointing to a realistic alternative for single-use food packaging.
I don’t have an answer for the cost of life, but I have heard many times that milk and cheese is overly abundant in the USA.
I do agree that it should be much cheaper to use cellulose/plant composite for these things. The problem is sealing it.
Yes, dairy is cheap in the US, only due to government subsidy.