Some research has linked chemical additives in plastics to health problems such as infertility, early puberty, developmental issues and metabolic disorders. The report estimates that the global social costs associated with these plastic-related chemicals exceeds $100 billion a year. Using relevant legal precedents, including some judgments in the recent opioids lawsuits, the researchers calculated expected liabilities of $20 billion in the US. Other legal pathways resulted in smaller corporate liabilities.
The large gap between the estimated social cost of plastic pollution and the more than $20 billion corporate liabilities is partly explained by the relative infancy of plastics litigation and test cases, and the difficulty of linking harms to particular producers of plastic. Its supply chains include many actors and unlike with tobacco lawsuits, for example, most people have been exposed to polymers.