Plastic pollution in the ocean injures and kills millions of marine animals each year through entanglement, ingestion, and chemical contamination, representing a massive ongoing welfare crisis.
Marine plastic causes prolonged, severe suffering. Entangled animals may struggle for weeks or months before dying. Animals that ingest plastic experience malnutrition and intestinal blockages. The scale of this suffering is staggering and largely invisible. Effective responses require both individual behavior change and systemic policy to reduce plastic production and improve waste management.