The Paper Straw Fallacy: A Costly Symbol, Negligible Benefit, and a Pigouvian Alternative That Could Fund the Clean-up of the Ocean

Paper straws were adopted across the EU and the US as an obvious environmental win. This preprint argues they are a costly symbol with negligible benefit. Reviewing peer-reviewed evidence, it shows that paper straws cost roughly five times more than polypropylene straws, perform worse on climate impact in several life cycle assessments, contain PFAS in 90% of tested brands, are often not recyclable in practice, and address a source that makes up about 0.025% of the plastic entering the ocean each year. As an alternative, the paper proposes restoring plastic straws with a Pigouvian-type levy of USD 0.004 per unit, earmarked by law for ocean and river clean-up. The taxed plastic straw would still cost less than half as much as a paper one. Applied to an estimated 219–250 billion straws per year in the EU and the US, the levy would raise roughly USD 0.9–1.0 billion annually. That is enough, on current estimates, to fund both the removal of the Great Pacific Garbage Patch within a decade and an interception programme targeting up to one third of global riverine plastic emissions. The paper includes a revenue sensitivity analysis, a discussion of objections and limitations, and a full disclosure of the use of large language models in its preparation.