The plastic that keeps food fresh certainly contributes to food's carbon footprint. One study estimates it is responsible for 19% to 29% of annual greenhouse gas emissions. What really ends up mattering is the quantity of food wasted throughout the supply chain."įood production has a huge carbon footprint. candidate at the University of Michigan and first author of the study, says, "When you zoom out and look at the whole life cycle, packaging is a relatively small contributor to the overall environmental impacts of a meal.
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