Plastic pollution causes significant welfare suffering for seabirds worldwide through ingestion, entanglement, and chick feeding of plastic fragments. Understanding the scale and mechanisms of this harm helps identify the most effective interventions.
Plastic pollution causes welfare harm to seabirds through multiple interacting mechanisms, each causing sustained individual suffering. A bird whose stomach is partially filled with plastic fragments experiences a chronically diminished ability to process food — it feels satiated but is malnourished, with insufficient energy for flight, breeding, and chick rearing. The images of albatross chick carcasses filled with colourful plastic bottle caps and fishing gear are vivid evidence of a welfare crisis that operates at enormous scale. Entanglement causes more acute harm: a bird caught in a plastic ring or monofilament line dies slowly from drowning or starvation over hours to days. The scale of the problem — billions of seabirds affected globally — makes individual rescue impossible as the primary solution; systemic reduction of plastic production and improved waste management are the only interventions capable of addressing the underlying cause.