I am seeing hopefully more prominent use of life cycle thinking as a way to quantify ecological influences of certain type of materials of use.
This underlying value is the sense of consciousness as a consumer to wisely switch to a more sustainable way of living. This can be achieved by diving into knowledges about differences in the time required for metal versus plastic to be degraded for instance. After having acquired this environmental awareness in head, wise choice can be make, in this case switching to use metallic reusable lunchboxes instead of plastic lunchboxes.
Interventions could draw focus onto education about the general public on this particular issue.