The cost of plastic packaging

The changes have happened so gradually that most consumers haven’t even noticed, but a tremendous amount of plastics have crept onto supermarket shelves.Shoppers are tossing a lot of plastic packages into their carts that didn’t exist when they were kids. Cucumbers sleeved in polyethylene film are now ubiquitous in the produce department, as are sliced fruits in polyethylene terephthalate (PET) containers and chopped, ready-to-eat salads in polypropylene bags. People don’t have to make their own guacamole or hummus anymore—it comes already prepared in convenient polypropylene tubs. Resealable plastic pouches, made from sophisticated multilayered films, are all over the supermarket. Shoppers can spot them on dry goods shelves containing granola, brown sugar, and beef jerky. They hang in refrigerator cases displaying shredded cheeses and cold cuts and are stacked in freezers filled with chicken, fish sticks, and french fries. Even tuna is starting to come in easy-to-open metallized pouches instead of