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Evaluating scenarios toward zero plastic pollution

Science 2020 1594 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Winnie W. Y. Lau, Yonathan Shiran, Richard M. Bailey, Ed Cook, Martin Stuchtey, Julia Koskella, Costas A. Velis, Linda Godfrey, Julien Boucher, Margaret B. Murphy, Richard C. Thompson, Emilia Jankowska, Arturo Castillo Castillo, Toby D. Pilditch, Ben Dixon, Laura Koerselman, Edward Kosior, Enzo Favoino, Jutta Gutberlet, Sarah Baulch, Meera E. Atreya, David Fischer, Kevin K. He, Milan M. Petit, U. Rashid Sumaila, Emily Neil, Mark Bernhofen, Keith Lawrence, James E. Palardy

Summary

Researchers modeled five different intervention scenarios for reducing global plastic pollution between 2016 and 2040 and found that even implementing all feasible solutions would only cut pollution rates by 40% compared to 2016 levels. Under a business-as-usual scenario, 710 million metric tons of plastic waste would still accumulate in ecosystems even with immediate action. The study makes clear that coordinated global efforts across consumption reduction, recycling, waste collection, and innovation are urgently needed.

Plastic pollution is a pervasive and growing problem. To estimate the effectiveness of interventions to reduce plastic pollution, we modeled stocks and flows of municipal solid waste and four sources of microplastics through the global plastic system for five scenarios between 2016 and 2040. Implementing all feasible interventions reduced plastic pollution by 40% from 2016 rates and 78% relative to "business as usual" in 2040. Even with immediate and concerted action, 710 million metric tons of plastic waste cumulatively entered aquatic and terrestrial ecosystems. To avoid a massive build-up of plastic in the environment, coordinated global action is urgently needed to reduce plastic consumption; increase rates of reuse, waste collection, and recycling; expand safe disposal systems; and accelerate innovation in the plastic value chain.

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