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.
It is neat, and provides a backstop to prices and American dairy overproduction. It diversifies income streams for farmers, but yes at the cost of food. Remember the concerns of corn to ethanol. Food as fuel has human costs as does food as packaging.
Edit: and of course our plasticized environment is a total nightmare scenario.