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This story was originally published by Grist. Sign up for Grist’s weekly newsletter here. It’s Earth Day 1990, and Meryl Streep walks into a bar. She’s distraught about the state of the ...
Paper recycling symbols indicate that the type of paper used to make a product is fit for recycling. PAP20 is for corrugated fiberboard or cardboard. PAP21 is for fiberboard found in cereal and snack ...