Research from the Center for International Environmental Law (CIEL) details the widespread burdens that plastic pollution places on US cities and states, and argues that plastic producers may be breaking public-nuisance, product-liability and consumer-protection laws. It comes as cities such as Baltimore have begun to file claims against plastic manufacturers, but the authors write that existing cases "are likely only the beginning, as more states and municipalities grapple with the challenges of accumulating plastic waste and microplastics contamination." Taxpayers foot the bill to clean plastic pollution from streets and waterways, and research shows people could ingest the equivalent of one credit card's worth of plastic per week. From 1950 to 2000, global plastic production soared from 2m tons to 234m tons annually. And over the next 20 years, production more than doubled to 460m tons in 2019. As the public grew concerned about plastic pollution, the industry responded with "sophisticated marketing campaigns" to shift blame from producers to consumers " for instance, by popularizing the term litterbug. Plastic has clogged sewer grates, leading to increased flooding. It has also exposed populations to microplastics. The report outlines different legal theories that could help governments pursue accountability. Nuisance could account for the harms themselves ... and consumer-protection law could be used to combat deceitful marketing practices.